PDA

View Full Version : Devastated!


Ultimate7
09-16-2012, 03:39 AM
Fellow 7 owners I hoped I might have solved my vibration issues with 4 refurbed wheels and new tyres at considerable expense only to find she still feels like I'm driving up a cobbled street,. I took the car in thinking it was a tyre issue, I was told that they were mis sharpen, old and I had some small buckles. Fare to assume this might be the problem

Many pennies later the car looks fab but at 55 mph, drives like it has square wheels. The wheels are original 19inch spoke wheels as fitted from new and the tyres are new Dunlop as recommended for the car, not run flats.

The weird thing is this, some months ago I ran over a small bolder on the neighbours lawn, slow speed on the rear right, the car drove like silk and thought nothing of it. 2months later the vibration started and my wallet emptied.

It the bolder was the cause I might have expected to feel the vibration sooner? Or might it have caused something to stress and weaken with time, I'm at a loss. Does anyone have any suggestions?

sirstopher
09-16-2012, 01:58 PM
Um, you bent something and now it is broken loose or is vibrating loose. Have you taken the car to a qualified BMW mechanic that will check all of the suspension?

There cold be multiple problems, and driving the car could be making it worse.

My indy charges 49.90 to put the car on a rack and check it out, that's refundable if I use them for the repair.

Good luck

Ultimate7
09-16-2012, 04:05 PM
Thanks Sirstopher.

Yea had it checked out by a BMW specialist although not a dealer, he suggested a mis shaped rear tyre which prompted its change. The fitter saw the buckle which prompted the refurb! Looks like I might have to take it to a dealer, just wanted to avoid the robbery!

Will post any findings

sirstopher
09-16-2012, 04:20 PM
I stay away from BMW at all cost. The only item that I will ever have them work on is alignment because they are the only place that can do it correctly.

I didn't look at your area but I would get on the phone and call every shop that can and will work on a BMW. Ask what their shop rate is, ask if they check your car and find the problem that the diagnostic charge is waved.

Many shops will work with you on this, you have to be firm in your request and get everything in writing.

I have two shops that I trust here, one will let me shop for parts and that is a plus because everyone marks stuff up or charges a higher shop per hour fee. Eventually you will find the best shop for your needs.

The shop I also like the best is great at the hourly rate, does quality work but is slow, I add two days to his quotes right off the bat.

Hope this helps again the dealer would be my last resort.

bayerisheteknik
09-17-2012, 10:48 AM
interesting....our bmw started doing the same thing but only after i installed 20" rims few weeks ago....the vibration starts over 45mph and gets worse with speed..under 45mph car is smooth

with stock oem 18's and bridgestone el400 car drives so smooth,but ever since i put 20's on the car they are staggered the vibration is there...

will have to take off front rims and take them to a place for balance and see if that helps...

all the bushings...suspension components look like new and solid on front

so im thinking its tires...back ones are falken fk452 they are excellent but front ones are some cheap brand..

will get back with results after wheel balance

pmpn8ez
09-17-2012, 11:13 AM
interesting....our bmw started doing the same thing but only after i installed 20" rims few weeks ago....the vibration starts over 45mph and gets worse with speed..under 45mph car is smooth

with stock oem 18's and bridgestone el400 car drives so smooth,but ever since i put 20's on the car they are staggered the vibration is there...

will have to take off front rims and take them to a place for balance and see if that helps...

all the bushings...suspension components look like new and solid on front

so im thinking its tires...back ones are falken fk452 they are excellent but front ones are some cheap brand..

will get back with results after wheel balance


Wheel balance should help. It will let you know if your tire has a flat spot or bends on the wheels. You would also feel most of the vibrations from the front just cause it would cause the steering wheel to vibrate.

bayerisheteknik
09-17-2012, 03:13 PM
Wheel balance should help. It will let you know if your tire has a flat spot or bends on the wheels. You would also feel most of the vibrations from the front just cause it would cause the steering wheel to vibrate.

thats where i feel it at the steering wheel....i just checked my PSI on wheels and back tires since they are 275/35/20 i had them at 41PSI but went down to 40PSI and fronts i had them at 37.5PSI but went down to 35PSI....so will see tommorow and if thats not gonne fix it than had to take the tires for balance.....

Ultimate7
09-17-2012, 03:24 PM
I have today called a few garages and have found one who will put the car on a rolling road to see exactly wher e the vibration is coming from. I'm reasonably confident its not the wheeles.

I've also got some leads on BMW specialists who charge half the price of the dealers.

Once we've identified the area I can hone in my investigation.

Thanks for the advice

bayerisheteknik
09-18-2012, 06:24 AM
I have today called a few garages and have found one who will put the car on a rolling road to see exactly wher e the vibration is coming from. I'm reasonably confident its not the wheeles.

I've also got some leads on BMW specialists who charge half the price of the dealers.

Once we've identified the area I can hone in my investigation.

Thanks for the advice

what PSI are you running on front tires?

Ultimate7
09-18-2012, 06:34 AM
To be honest I don't know, they inflated them when the tyres were replaces Andi haven't checked!

bayerisheteknik
09-18-2012, 12:02 PM
i would recheck PSI,maybe they overinflated them

pmpn8ez
09-18-2012, 12:27 PM
Could you isolate which side exactly is causing the vibrations. Front will vibrate the steering wheel and rears would vibrate your seat cushion. From there see if you could determine if it is passanger/driver side. Pull that wheel off and inspect for any wheel damage or maybe even a tire out of round such as a bubble. Replace the wheel with your spare and drive it around and see if that solves the issue. Start off with the minor solutions and if doesn't work then progress.

csmeance
09-18-2012, 02:07 PM
Fellow 7 owners I hoped I might have solved my vibration issues with 4 refurbed wheels and new tyres at considerable expense only to find she still feels like I'm driving up a cobbled street,. I took the car in thinking it was a tyre issue, I was told that they were mis sharpen, old and I had some small buckles. Fare to assume this might be the problem

Many pennies later the car looks fab but at 55 mph, drives like it has square wheels. The wheels are original 19inch spoke wheels as fitted from new and the tyres are new Dunlop as recommended for the car, not run flats.

The weird thing is this, some months ago I ran over a small bolder on the neighbours lawn, slow speed on the rear right, the car drove like silk and thought nothing of it. 2months later the vibration started and my wallet emptied.

It the bolder was the cause I might have expected to feel the vibration sooner? Or might it have caused something to stress and weaken with time, I'm at a loss. Does anyone have any suggestions?

Can you describe the vibration a bit better? Do you feel it in your seat, steering wheel or both? Does it change with speed? How so?

There could be a few GOOD possibilities on what is causing the issues you are experiencing and these are my steps to eliminating vibration issues. With more info I can try to help out more.

Most common is wheel balancing; make sure you go to a GOOD shop that uses HUNTER ROAD FORCE machines to balance tires. Clean off your wheels as good as you can get them before you go!

Second issue I've noticed with newer tires is that most shops aren't mounting them properly. Make sure your tires have seated on the rim properly! A tire shop should be able to check this. IF it hasn't, dismount it and then remount the tire using high pressure mounting techniques!

Third, check all the lug bolts and make sure they are in good condition and properly torqued.

Fourth, check the suspension by putting the car on a lift and moving the wheel back and forth and such. Depending on which way it moves you can find and see if the issue is the control arm (thrust arm) bushings, the actual control arm (thrust arm), swaybar bushings, etc.

Ultimate7
09-19-2012, 01:47 AM
Csmeance.

Thanks for getting in touch.

The vibration is felt through the seat and a little through the steering wheel. It's generally worse around 55 moh and the frequency increases with speed. This gives the sense that it improves with speed!

I wnt this morning to have the tyre pressures checked as I had fitted new tyres. I found they were all set at 2.2 bar, I've had the rears set at 2.5 and this seems to have had a positive effect although the vibes are still there.

Next week I am visiting a garage with a rolling road so I can identify where the problem lies and visually check whilst running the car.

I will report my findings

Ultimate7
09-19-2012, 01:49 AM
Thanks everyone for your help so far I can tell you that there is nothing more frustrating and disappointing than not enjoying your drive!

bayerisheteknik
09-24-2012, 08:18 PM
still having issue...went down from 37.5 PSI to 35 PSI on fronts while still having 41 PSI on rears and now vibration in steering wheel is not as bad as used to be but still present...before it started around 45mph now starts at 53mph

should i lower the PSI on front to less then 35 with tire size 245/40/20???

last chance is to have them balanced with computerized machine and see if that is going to help...

all bushings on front end and all components are like new

First_745Li
09-24-2012, 08:40 PM
From what I can tell there are four us now with that annoying vibration that's felt in the seats as steering wheel. My beast goes in tomorrow to have the lower control arm bushings checked, driveshaft inspected, and another member suggested counter weights might be missing in the driveshaft. My INDY doesn't think it's any of these items, still think its the wheels. Idk anymore.

csmeance
09-24-2012, 09:08 PM
Csmeance.

Thanks for getting in touch.

The vibration is felt through the seat and a little through the steering wheel. It's generally worse around 55 moh and the frequency increases with speed. This gives the sense that it improves with speed!

I wnt this morning to have the tyre pressures checked as I had fitted new tyres. I found they were all set at 2.2 bar, I've had the rears set at 2.5 and this seems to have had a positive effect although the vibes are still there.

Next week I am visiting a garage with a rolling road so I can identify where the problem lies and visually check whilst running the car.

I will report my findings

still having issue...went down from 37.5 PSI to 35 PSI on fronts while still having 41 PSI on rears and now vibration in steering wheel is not as bad as used to be but still present...before it started around 45mph now starts at 53mph

should i lower the PSI on front to less then 35 with tire size 245/40/20???

last chance is to have them balanced with computerized machine and see if that is going to help...

all bushings on front end and all components are like new

Vibration in your seat predominantly means that it's the rear tires that are at at fault; and the slight vibration at the steering wheel means that there is a little bit of the front as well.

Now that we know the rear tires are the BIG issue, lets start with some things. First of all what rims are on the car? Are they BMW? What size are they?

Next the tires, What tires do you have and what size are they? The tires can be a HUGE issue! Where were they installed and how were they balanced? I suggest a tire place use a Road Force Balancer which warms up the tire and applies a load to it as they are much more accurate.

Third, do you have any sort of spacers, adapters or foreign objects between the wheel and the hub of the car?

Fourth, What is the condition and torque on the rear lug bolts? If improperly torqued or if damaged, the lugs cannot do their job properly!

Fifth, how are the bushings on the rear suspension?

jenkx
09-25-2012, 12:10 AM
I think I mentioned this before but somebody else had this problem, turned out to be a bad wheel hub.

Check this out:
http://www.***********.com/catalog/?N=1580+9760+4294962951+4294963605

The above is the parts bin.com The forum won't allow the whole link to be posted.

bayerisheteknik
09-25-2012, 08:15 AM
Vibration in your seat predominantly means that it's the rear tires that are at at fault; and the slight vibration at the steering wheel means that there is a little bit of the front as well.

Now that we know the rear tires are the BIG issue, lets start with some things. First of all what rims are on the car? Are they BMW? What size are they?

Next the tires, What tires do you have and what size are they? The tires can be a HUGE issue! Where were they installed and how were they balanced? I suggest a tire place use a Road Force Balancer which warms up the tire and applies a load to it as they are much more accurate.

Third, do you have any sort of spacers, adapters or foreign objects between the wheel and the hub of the car?

Fourth, What is the condition and torque on the rear lug bolts? If improperly torqued or if damaged, the lugs cannot do their job properly!

Fifth, how are the bushings on the rear suspension?

the rear tires are falken fk452 size 275/35/20 and couple weeks ago i have put a 20mm ecstunning spacers ordered them new...
front tires are achilles dessert hawk uhp size 245/40/20
rims brand unknown...staggered
bought rims with tires for 500 cash...both front and rear tires are brand new
achilles tires looks like cheaply made tires and falken fk 452 are pretty good
when i bought the rims guy mentioned that he had the tires/rims balanced so i took his word for it...looks like computer balance is my next step
rear lug bolts are very good condition and torgued properly
bushings are ok front and rear

bayerisheteknik
09-25-2012, 08:23 AM
I think I mentioned this before but somebody else had this problem, turned out to be a bad wheel hub.

Check this out:
http://www.***********.com/catalog/?N=1580+9760+4294962951+4294963605

The above is the parts bin.com The forum won't allow the whole link to be posted.

i wish that was the case on my flagship..but already checked while had the car on jack and there was no movemet in any direction both side/side and up/down...everything is solid
maybe its the rims its self since i bought them used

First_745Li
09-25-2012, 08:51 AM
i wish that was the case on my flagship..but already checked while had the car on jack and there was no movemet in any direction both side/side and up/down...everything is solid
maybe its the rims its self since i bought them used

I have the same issues, and both sets of my wheels were brand spanking new...

csmeance
09-25-2012, 09:43 AM
the rear tires are falken fk452 size 275/35/20 and couple weeks ago i have put a 20mm ecstunning spacers ordered them new...
front tires are achilles dessert hawk uhp size 245/40/20
rims brand unknown...staggered
bought rims with tires for 500 cash...both front and rear tires are brand new
achilles tires looks like cheaply made tires and falken fk 452 are pretty good
when i bought the rims guy mentioned that he had the tires/rims balanced so i took his word for it...looks like computer balance is my next step
rear lug bolts are very good condition and torgued properly
bushings are ok front and rear

Tire size seems about right, the front tires I'm weary of since it's an off-brand. 500 dollars for rims and tires? I'd be more concerned about the rims at that point since it's pretty hard to find a decent looking wheel that can support the weight of our cars for that little money, and esp. one that is the right size (20x9 and 20x10).

You mentioned the spacers, did you buy the extended rear lug bolts with those spacers? Also have you tried taking them off? Another member had HORRID vibrations with the spacers on and once they were taken off, the problem was resolved!

bayerisheteknik
09-25-2012, 02:01 PM
Tire size seems about right, the front tires I'm weary of since it's an off-brand. 500 dollars for rims and tires? I'd be more concerned about the rims at that point since it's pretty hard to find a decent looking wheel that can support the weight of our cars for that little money, and esp. one that is the right size (20x9 and 20x10).

You mentioned the spacers, did you buy the extended rear lug bolts with those spacers? Also have you tried taking them off? Another member had HORRID vibrations with the spacers on and once they were taken off, the problem was resolved!

well i got them of craigslist....guy had them on his e66...they are not bent,the chrome on lips is not perfect thats why only 500 for rims and tires but falken fk452 were brand new and fronts

were new too just not falkens but achilles

yes the spacers came with extended rear bolts as i would not be able to put the rear rims on with stock lug bolts...

i think i measured the rear rims and they were 20x11 or 10.5 outside edge to outside edge

im pretty sure the front rims are problem..as only the steering wheel is shaking

ill try to lower the rears to 38psi and see if that helps but still have to take rims to get balanced...just too busy right now

<a href="http://tinypic.com?ref=2vkg41u" target="_blank"><img src="http://i47.tinypic.com/2vkg41u.jpg" border="0" alt="Image and video hosting by TinyPic"></a>
<a href="http://tinypic.com?ref=1zyaeld" target="_blank"><img src="http://i48.tinypic.com/1zyaeld.jpg" border="0" alt="Image and video hosting by TinyPic"></a>
<a href="http://tinypic.com?ref=24dkbaw" target="_blank"><img src="http://i49.tinypic.com/24dkbaw.jpg" border="0" alt="Image and video hosting by TinyPic"></a>
<a href="http://tinypic.com?ref=ig96c2" target="_blank"><img src="http://i45.tinypic.com/ig96c2.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

csmeance
09-25-2012, 02:43 PM
well i got them of craigslist....guy had them on his e66...they are not bent,the chrome on lips is not perfect thats why only 500 for rims and tires but falken fk452 were brand new and fronts

were new too just not falkens but achilles

yes the spacers came with extended rear bolts as i would not be able to put the rear rims on with stock lug bolts...

i think i measured the rear rims and they were 20x11 or 10.5 outside edge to outside edge

im pretty sure the front rims are problem..as only the steering wheel is shaking

ill try to lower the rears to 38psi and see if that helps but still have to take rims to get balanced...just too busy right now



I was just making sure about the bolts since some folks try to force fit it! The rims are the right size but now I'm a tad confused since you said you feel the vibration more in the steering wheel than you do in the seat, but you said the oposite a few posts ago!

If the steering wheel is shaking, then it's the front wheels that have an issue. I suggest you have the wheels rebalanced at a shop that uses a HUNTER ROAD FORCE BALANCER :
http://www.gsp9700.com/search/FindLocations.cfm

These machines are the best in the industry and will balance your tires well!

Another concern I have is about the wheel centers, mount the wheels on your car (no lug bolts, jacked up clearing the ground) and see if the wheel is sitting flush on the hub (behind where the centercap goes). If not, you will need a hubcentric adapter and that would be the cause for a TON of vibrations. If it is sitting fine then the issue is more than likely the balancing + bad front tires.

FYI, a tire with a bad set of cords or rubber that is separating on the inside will cause serious vibrations as the warm up and get to certain speeds as the weight of the wheel is shifting. Also it only takes a little bit of weight to get a vibration resolved or worse, I think the shop near me got it within 3 grams of what it needed to be in order to fix all vibrations!

bayerisheteknik
09-25-2012, 04:34 PM
I was just making sure about the bolts since some folks try to force fit it! The rims are the right size but now I'm a tad confused since you said you feel the vibration more in the steering wheel than you do in the seat, but you said the oposite a few posts ago!

If the steering wheel is shaking, then it's the front wheels that have an issue. I suggest you have the wheels rebalanced at a shop that uses a HUNTER ROAD FORCE BALANCER :
http://www.gsp9700.com/search/FindLocations.cfm

These machines are the best in the industry and will balance your tires well!

Another concern I have is about the wheel centers, mount the wheels on your car (no lug bolts, jacked up clearing the ground) and see if the wheel is sitting flush on the hub (behind where the centercap goes). If not, you will need a hubcentric adapter and that would be the cause for a TON of vibrations. If it is sitting fine then the issue is more than likely the balancing + bad front tires.

FYI, a tire with a bad set of cords or rubber that is separating on the inside will cause serious vibrations as the warm up and get to certain speeds as the weight of the wheel is shifting. Also it only takes a little bit of weight to get a vibration resolved or worse, I think the shop near me got it within 3 grams of what it needed to be in order to fix all vibrations!

im pretty sure it was someone else on this thread mentioning vibration in the seat...i only feel it on the steering wheel

i checked around naples and firestone have a machine that can balance any wheel size,most shops have up to 18's...we took our tahoe there with 22s and they balance them well..not sure what kind of machine they use

and before i tightened the rims after taking off oem 18s i made sure there is no rust or dirt on wheel hubs and that 20's sit tight and flush...i took few pix just now how they sit on front and rear
tires both front and rear are new even though the front ones are cheaper brand they still have little nipples on them
i try search around if anyone has hunter road force machine as you mentioned....
thanks for all the info :thumbup:
<a href="http://tinypic.com?ref=33fb0cw" target="_blank"><img src="http://i47.tinypic.com/33fb0cw.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com?ref=t0rb6g" target="_blank"><img src="http://i50.tinypic.com/t0rb6g.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

<a href="http://tinypic.com?ref=2nvv289" target="_blank"><img src="http://i47.tinypic.com/2nvv289.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

First_745Li
09-25-2012, 06:19 PM
I too am getting the vibration in the seats as well as in the steering wheel. I took it to my INDY today, he checked the rear suspension, bushings, control arms, and drive shaft.. according to him everything looks good. Tomorrow I am taking the car back so we can try the stock 19" wheels and see if the vibration is still present. My INDY thinks its the wheels/tires. I doubt it since this is the second set of brand new wheels. I'm so unhappy right now.

bayerisheteknik
09-25-2012, 06:30 PM
I too am getting the vibration in the seats as well as in the steering wheel. I took it to my INDY today, he checked the rear suspension, bushings, control arms, and drive shaft.. according to him everything looks good. Tomorrow I am taking the car back so we can try the stock 19" wheels and see if the vibration is still present. My INDY thinks its the wheels/tires. I doubt it since this is the second set of brand new wheels. I'm so unhappy right now.

i know it sucks...let us know how it goes...

Rookie2008
09-25-2012, 07:09 PM
I hear this problem a lot an have heard that it may be the the larger rim. I'm not sure though. I wish everyone the best an please post the final results.

jenkx
09-25-2012, 09:31 PM
i wish that was the case on my flagship..but already checked while had the car on jack and there was no movemet in any direction both side/side and up/down...everything is solid
maybe its the rims its self since i bought them used

Could be slightly bent, not necessarily loose. I hope you solve the problem.

Emeer18
09-25-2012, 10:09 PM
I would bet that one of your front rims is bent slightly. Happened to my 24's on my expedition

VAN HELLSING
09-26-2012, 12:03 AM
I think it's the Rims, they might be defected. They might be and look new, but could be poor quality material. I had a friend who had this issue. If the car runs fine with the 18's, then most likely it's them rims. Make sure that those screws are tighten right with the spacesors. If so, i would get rid of them. Stop wasting your time and money trying to find or fix something else that's not broken.

davethewheel
09-26-2012, 12:24 AM
I had slight movement in my steering wheel at about 55-65 mph...no movement aft. 65-70mph, was really getting frustrated with it and was at a shop to have it Hunter road force balanced and the mechanic raised my car up and spun my front wheels and I could see the whole rim/wheel move very slightly from side to side, purchased new rims (aftermarket for 1200.00) now it is perfect. Oh and also I could feel the shaking in the floorboard) '06 530i...good luck it took me over 6 mos. To figure out...before that I bought 4 tires!

Sent from my MB855 using Bimmer App

bayerisheteknik
09-26-2012, 06:28 AM
Could be slightly bent, not necessarily loose. I hope you solve the problem.

thanks

guys i think its the rims it self.....with oem 18s car drives perfect,straight,no vibration at any speed

even though the 20's look good,i couldn't find any bent on any of the rims,maybe they are not for the bmw,maybe car is too heavy for those rims as someone mentioned..
also the guy i bought them from said he used them on his lexus as well so he was switching them on lexus and his e66

today i'll try lower the psi on fronts to 34 and rears to 37 from 41...i haven't spent any money on balance or tires as they were new

so i can spent few bux on balancing and see if that helps if not...put 18's back on...sell those rims/tires on craigslist for 550 obo and just buy 22s from First_745Li if he still has his for sale

First_745Li
09-26-2012, 07:48 AM
thanks

guys i think its the rims it self.....with oem 18s car drives perfect,straight,no vibration at any speed

even though the 20's look good,i couldn't find any bent on any of the rims,maybe they are not for the bmw,maybe car is too heavy for those rims as someone mentioned..
also the guy i bought them from said he used them on his lexus as well so he was switching them on lexus and his e66

today i'll try lower the psi on fronts to 34 and rears to 37 from 41...i haven't spent any money on balance or tires as they were new

so i can spent few bux on balancing and see if that helps if not...put 18's back on...sell those rims/tires on craigslist for 550 obo and just buy 22s from First_745Li if he still has his for sale

Since there's two threads regarding the same issues, and I've commented on both.. please see this thread on my last response. I do believe it's worth a shot.

http://www.bimmerfest.com/forums/showthread.php?t=637730&page=3

bayerisheteknik
09-26-2012, 08:02 AM
Since there's two threads regarding the same issues, and I've commented on both.. please see this thread on my last response. I do believe it's worth a shot.

http://www.bimmerfest.com/forums/showthread.php?t=637730&page=3

interesting about the re-indexing of tires....how much they charge for that??? or is it included if you take it in for balance

:thumbup:

First_745Li
09-26-2012, 08:32 AM
interesting about the re-indexing of tires....how much they charge for that??? or is it included if you take it in for balance

:thumbup:

I don't remember what I paid when it was done on my truck several years ago., I will soon find out though. I plan to stop in and talk to them on my way home.

First_745Li
09-27-2012, 01:15 PM
Here's an update.... My INDY put OEM 19"s back on and we went out for a ride.. up and down I-95 and locally, smooth as glass.. like a 7 should be. Put my 22's back on and went back out... steering wheel shaking at 45mph and vibes in the seat, etc, etc. So I then took it to Serious Autosport here in WPB, they road forced all the tires, machine showed 3 "bad" tires meaning out of round or defective in some way. They re-indexed one tire and it balanced better. All four wheels were able to be balanced better than they were before. I drove home, the steering wheel doesn't shake anymore, still some vibes in the seat but that's from the tires. I called the other shop and I told them what the results were and I've requested to have all four new tires.. We will see what happens. I will definately go back to Serious Autosport to get the balancing re-checked.

bayerisheteknik,
They charged $15 extra to re-index that tire.

bayerisheteknik
09-28-2012, 07:38 AM
Here's an update.... My INDY put OEM 19"s back on and we went out for a ride.. up and down I-95 and locally, smooth as glass.. like a 7 should be. Put my 22's back on and went back out... steering wheel shaking at 45mph and vibes in the seat, etc, etc. So I then took it to Serious Autosport here in WPB, they road forced all the tires, machine showed 3 "bad" tires meaning out of round or defective in some way. They re-indexed one tire and it balanced better. All four wheels were able to be balanced better than they were before. I drove home, the steering wheel doesn't shake anymore, still some vibes in the seat but that's from the tires. I called the other shop and I told them what the results were and I've requested to have all four new tires.. We will see what happens. I will definately go back to Serious Autosport to get the balancing re-checked.

bayerisheteknik,
They charged $15 extra to re-index that tire.

ok thanks man so it was damn tires ehhh??:thumbup:

First_745Li
09-28-2012, 07:42 AM
ok thanks man so it was damn tires ehhh??:thumbup:

It seems that way at this point. I (as well as other members here) recommend using a shop that has a RoadForce machine,

Use this site to look for one..

http://www.gsp9700.com/search/findgsp9700.cfm

bayerisheteknik
09-28-2012, 07:43 AM
btw i solved my problem too...
with stock 18s car drives smooooooth...20s little vibration in steering wheel

i had my psi set in rear at 41 and fronts were 37.5....went down to 35 on fronts vibration less but still present...

so i thought let me go as sticker on door says...

i put 32PSI Front and on rear i went from 41PSi down to 35PSI and no more shaking....

i think like First_745Li mentioned you need reindexing and tires...

i believe my tires even though new are not perfect and with higher PSI they shake...

went down with PSI and no shaking.....

First_745Li
09-28-2012, 08:49 AM
btw i solved my problem too...
with stock 18s car drives smooooooth...20s little vibration in steering wheel

i had my psi set in rear at 41 and fronts were 37.5....went down to 35 on fronts vibration less but still present...

so i thought let me go as sticker on door says...

i put 32PSI Front and on rear i went from 41PSi down to 35PSI and no more shaking....

i think like First_745Li mentioned you need reindexing and tires...

i believe my tires even though new are not perfect and with higher PSI they shake...

went down with PSI and no shaking.....

:thumbup: cool

Emeer18
09-29-2012, 12:41 AM
thanks

guys i think its the rims it self.....with oem 18s car drives perfect,straight,no vibration at any speed

even though the 20's look good,i couldn't find any bent on any of the rims,maybe they are not for the bmw,maybe car is too heavy for those rims as someone mentioned..
also the guy i bought them from said he used them on his lexus as well so he was switching them on lexus and his e66

today i'll try lower the psi on fronts to 34 and rears to 37 from 41...i haven't spent any money on balance or tires as they were new

so i can spent few bux on balancing and see if that helps if not...put 18's back on...sell those rims/tires on craigslist for 550 obo and just buy 22s from First_745Li if he still has his for sale

Im betting its your front rims. I had the exact same issue with my 24's. I decided to put one of the wheels from the front on the rear and the shaking stopped. That told me that the wheel i put in the rear was damaged slightly. If that doesnt work try the other wheel. Trust me on this lol, i put in $500 on tires and balancing before i found the problem.

Ultimate7
09-29-2012, 11:28 AM
Hi all

It seems some of you have resolved the problem with smaller/larger rims and experimenting with different tyre pressures, I however have a different tale to tell:

I managed to find a garage that had a rolling road amd a lift, I'm fact they are a firm who deal with race engines, mod and manufacture, including mapping etc, not quite what I need but skilled engineers and much cheaper than BMW.

Firstly my re-ferbed wheels still had burrings on the wheel hub so they were not sitting well on the hub. The wheels are now true however the vibration was still present. The culprit was found to be a worn and cracked doghnut between the driveshaft and rear axel, this slack was being transmitted through the shaft to the rear wheels.

I went to collect the car and after only 30seconds of driving a loud knocking vibrating noise came from the middle if the car.......SSSSTTTTOOOOOPPPPPP!!!!

I called the garage"something is proper wrong" car in overnight

Got a call this morning, driveshaft bearing gone, the doughnut had been taking the slack and now it was new and rigid, the defected bearing was now having a voice!

My 750i sport is 7 years old with 80k on the clock, lets hope this is the end of it

First_745Li
09-29-2012, 03:20 PM
Hi all

It seems some of you have resolved the problem with smaller/larger rims and experimenting with different tyre pressures, I however have a different tale to tell:

I managed to find a garage that had a rolling road amd a lift, I'm fact they are a firm who deal with race engines, mod and manufacture, including mapping etc, not quite what I need but skilled engineers and much cheaper than BMW.

Firstly my re-ferbed wheels still had burrings on the wheel hub so they were not sitting well on the hub. The wheels are now true however the vibration was still present. The culprit was found to be a worn and cracked doghnut between the driveshaft and rear axel, this slack was being transmitted through the shaft to the rear wheels.

I went to collect the car and after only 30seconds of driving a loud knocking vibrating noise came from the middle if the car.......SSSSTTTTOOOOOPPPPPP!!!!

I called the garage"something is proper wrong" car in overnight

Got a call this morning, driveshaft bearing gone, the doughnut had been taking the slack and now it was new and rigid, the defected bearing was now having a voice!

My 750i sport is 7 years old with 80k on the clock, lets hope this is the end of it

Good luck. I hope that was your issue.

TUF-FKR
09-30-2012, 06:30 PM
I was just making sure about the bolts since some folks try to force fit it! The rims are the right size but now I'm a tad confused since you said you feel the vibration more in the steering wheel than you do in the seat, but you said the opposite a few posts ago!

If the steering wheel is shaking, then it's the front wheels that have an issue. I suggest you have the wheels rebalanced at a shop that uses a HUNTER ROAD FORCE BALANCER :
http://www.gsp9700.com/search/FindLocations.cfm

These machines are the best in the industry and will balance your tires well!

Another concern I have is about the wheel centers, mount the wheels on your car (no lug bolts, jacked up clearing the ground) and see if the wheel is sitting flush on the hub (behind where the centercap goes). If not, you will need a hubcentric adapter and that would be the cause for a TON of vibrations. If it is sitting fine then the issue is more than likely the balancing + bad front tires.

FYI, a tire with a bad set of cords or rubber that is separating on the inside will cause serious vibrations as the warm up and get to certain speeds as the weight of the wheel is shifting. Also it only takes a little bit of weight to get a vibration resolved or worse, I think the shop near me got it within 3 grams of what it needed to be in order to fix all vibrations!

Potential problems:
1. Bent part from bolder (The larger/heavier rims exaggerated the problem
2. Or the seller did tell you the truth and balanced them, but your spacers are not centered, causing the vibration.
3. New rims are bent causing vibration (unlikely as you can see when they have flat spots).

Isolate the problem. Put stock rims back on, Front first, drive get feedback. Put stock back on the rear, drive get feedback. Put 20's back on front then drive, etc...

Im going with problem statement number one. The bent part on car (from boulder), made you OEM tire Wear very un-even, eventually you took notice and entered a new variable (rims, tires). Problem exacerbated with larger rims. You will destroy that tire in no time, and the vibration will cause all sorts of other issues on your car in a short period of time. Vibration is an amazing tool...
G
ood luck and keep us posted.

Ultimate7
10-01-2012, 12:31 AM
TUF

are you getting 2 people muddled, as it was me who hit the boulder!

should collect my car in the next couple of days, new doughnut and cerntre bearing!

Port Canaveral
10-01-2012, 01:41 AM
Sounds like bad bearings some where in the drive shaft or wheel bearings that are getting out of whack, depending on what load they have on them at a particular weight & speed. Once in a while they actually get into position whereby you think you fixed the problem. Then under a particular load they get out of alignment due to bad spots on some of the bearings and start causing vibration until they fall back into place temporairily. Pretty soon they or it (bearing) will break into small pieces and then you will know for sure where the problem is due to noise and crunching sounds. Thats my guess for now! I hope it works out ok for you. Good luck

TUF-FKR
10-01-2012, 06:40 AM
TUF

are you getting 2 people muddled, as it was me who hit the boulder!

should collect my car in the next couple of days, new doughnut and cerntre bearing!

Ahh, yes. I forgot that there is approx. 3 of you on this thread with a similar issue. Thanks for the correction. I still suggest isolating the problem to the rims.

I have a flat spot on my right front, but there is no mistaking where the problem is. Last time it was on the inner lip of the front rim (paid $150 to have it fixed), then a month later I hit another pot hole and flattened the outer lip. FAK! Totally my fault. I dont have vibration issues it has a little shimmy. Luckily there is a shop locally that carrys outer rings for Asanti wheels.

Once the issues are resolved please post the solution as this is always good to know and pretty common problem.

With all the state budget cuts the roads suffer around So-Cal. Combined with too many people here.

Ultimate7
10-08-2012, 06:11 AM
Problem Solved!

The problem lay finally in the Drive/Prop shaft and specifically with the prop shaft mount and latterley the CV joint. I have had these replaced and the vibration has all but gone. i still have an issue with one of my wheels which was supposed to have been straightened but still has a ding in it which has just about balanced out.

There are plenty of threads on this site about vibration from the shafts and in most cases these two areas are the most common faults.

You might be told to replace the entire shaft.THIS REALLY IS NOT NECESSARY. you might also be told to have is rebalanced, again this may not be the case.

There are a few people who have done the job themselves but its a big job involving the removal of a very heavy exhaust and some specialist tools might be needed. Personally id find a garage that charges around 50 quid an hour. its a 4 hour job and the rear CV joint was 130. its not gonna blow the christmas fund!

best of luck....

First_745Li
10-08-2012, 08:09 AM
Ultimate7, I'm glad your issue has been resolved. I'm getting all new tires today, which should solve my vibrations. My last visit to a shop for a second opinion found three bad tires on the road force machine. Supposedly they were brand new tires. We shall see after today's visit. Enjoy your beast, finally.

Alexb650
10-08-2012, 02:35 PM
I recently had the same exact symptoms on my 5 series. It shook a little on the steering wheel but mostly from the seat (and everywhere generally). It wasn't noticable at low speeks but around 45mph it because really apparent.

It turned out to be the left rear tire that had separation near the inside bead so it was very hard to see. Could be possible that the new tires you got are faulty. I would try rotating the tires because if it's the tire, you'll know right away because you will feel it in your steering wheel. At least that way you'll know if the problem is from a bent rim/bad tire or if the symptomes stay the same after the tire rotation, you'll know if it's something like wheel bearing or bent axle.

First_745Li
10-08-2012, 04:38 PM
I recently had the same exact symptoms on my 5 series. It shook a little on the steering wheel but mostly from the seat (and everywhere generally). It wasn't noticable at low speeks but around 45mph it because really apparent.

It turned out to be the left rear tire that had separation near the inside bead so it was very hard to see. Could be possible that the new tires you got are faulty. I would try rotating the tires because if it's the tire, you'll know right away because you will feel it in your steering wheel. At least that way you'll know if the problem is from a bent rim/bad tire or if the symptomes stay the same after the tire rotation, you'll know if it's something like wheel bearing or bent axle.

I got new tires today, the shop warrantied them. The 45minute ride home was more like a glide. Local streets felt smooth as well. I will continue to drive it this week and see if it really gone.

Ultimate7
10-09-2012, 10:02 AM
great news, like the rims by the way!

First_745Li
10-09-2012, 11:25 AM
great news, like the rims by the way!

Thanks! So far so good. :thumbup: