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X3 E83 (2004 - 2010)
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  #1726  
Old 11-27-2013, 08:22 AM
simsima325 simsima325 is offline
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Mein Auto: 2007 X3 3.0si
Updating the software via AutoLogic fried my DME. A dealer trip properly diagnosed this, and somehow BMW covered the DME... a miracle considering the cost of the part alone. Got out the door for the cost of diagnosis, and got VERY lucky.

So it wasn't related to the automatic transmission at all.

Now with the new software (dealer updated) it shifts better, keeps RPM lower, and no more rough downshifts (although it could be smoother in cold operating conditions, maybe a fluid change would smooth this out, but its not a big deal, and I am now reluctant to touch the car in any way while it still works!).
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  #1727  
Old 11-27-2013, 08:42 AM
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madurodave madurodave is offline
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2007-2010 X3 Automatic Transmission Problem Master Thread!

Quote:
Originally Posted by simsima325 View Post
Updating the software via AutoLogic fried my DME. A dealer trip properly diagnosed this, and somehow BMW covered the DME... a miracle considering the cost of the part alone. Got out the door for the cost of diagnosis, and got VERY lucky.

So it wasn't related to the automatic transmission at all.

Now with the new software (dealer updated) it shifts better, keeps RPM lower, and no more rough downshifts (although it could be smoother in cold operating conditions, maybe a fluid change would smooth this out, but its not a big deal, and I am now reluctant to touch the car in any way while it still works!).
I found after changing my trans fluid, transfer case fluid and diff fluids shifting was better.

It is worse at cold temps.

My DME was almost fried by dealer too at software install. They managed to resusitate. 130k miles later (152k total) still going strong!


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  #1728  
Old 12-02-2013, 10:17 PM
cdavids cdavids is offline
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I stumbled onto a E90 (3-series) thread with a lot of the same transmission complaints. They are apparently having great success with replacing the solenoids in the mechatronics unit:

http://www.e90post.com/forums/showthread.php?t=479837


They refer specifically to the ZF transmission, but I wonder if a similar procedure would work on the GM transmission. I also saw a previous post in this thread mentioning a revised mechatronics unit being introduced into the X3 in late '08 which either helped or resolved these issues.

So, has anyone tried changing the solenoids in the mechatronics unit yet?
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  #1729  
Old 02-22-2014, 04:11 AM
x3oiler x3oiler is offline
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re mechatronics = good chance

The X3 I used to own had Jekyll and Hyde characteristics in the AT and the bad part was that some issues would only appear after a long time at highway speeds. Example: First set of traffic lights and from a standing start the change from 1 to 2nd occurred way too early with an audible bang under the car and then AT slurred as the torque converter caught up with the premature change.
This is not conducive to dealer testing. ie at least 2 - 3 hours at 100kmph is a precursor. Sure a software update (dated 2008) fixed a lot of issues such as holding on to 1st gear way too long but not all issues fixed.
So what really peeved me was the comment after the last service from a service tech just before I sold the car - and this after 6 years of this problem and denials - "oh that would be the mechatronics unit then". Dang I was furious . . 6 years of trying to get recognition that a problem existed to have this stated effectively "off the record".
From my signature you can see my decision . . not that I changed vehicle due to this as you tend to get immune after a while but I needed more towing capacity but no way was I EVER going to buy another BMW after this history . . bye bye BMW and forever.

So yes, the mechatronics on the GM 6speed AT prior to 2008 is crap IMO and should have been subject to a total recall. ROTFLMA when I consider that chances of THAT ever happening at the time.

Disclaimer: Please read the above in the context that the author is a very very jaded (ex) BMW customer.
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  #1730  
Old 02-25-2014, 09:58 AM
juniorcdr32 juniorcdr32 is offline
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Mein Auto: 2006 X3 and 2007 328i
2006 X3 GM transmission

After reading many forum posts and having the BMW dealership tell me I needed a new transmission, I had the transmission rebuilt by an independent mechanic.

The fluid has been changed, solenoids replaced, and torque converter has been replaced.

Picked the car up yesterday from the independent mechanic and no problems until I was almost home, the car hard shifted and the transmission light came on.

Same thing happened again this morning on the way to work.

My question is, what's the best course of action here, should I have the mechanotronics unit replaced, or should I have the computer reset to have the adaptive shifting conform to the new solenoids?

I'm very frustrated and need to get this car repaired so that I can move on from here.
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  #1731  
Old 05-10-2014, 06:35 AM
x3oiler x3oiler is offline
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Heck I am surprised. No response. After 70 pages either the X3 population is dying out or the owners have given up.

But in response to the last posters question, I would have thought that a transmission reset would have been done after the rebuild. The old "turn the ignition key to the second stop but not starting the the engine, press foot to floor for 20 seconds, remove foot from accelerator, turn ignition key to off then start engine" will help but is only reseting the adaptive throttle settings I suspect and not the actual transmission. Deeper diagnostics are required to reset the transmission adaptive memory but I have deleted all that software now so not in a position to advise. I do sincerely hope juniorcdr32 that you had some success but I suspect that as per my last post that the mechatronics as a whole is the root of all evil in the X3 At and was upgraded (from memory) in the 2008 model. Should have been a total recall but fat chance of that. BMW lost me as a customer for sure and BMers cost a LOT in AUS (fat profit) they missed me for the rest of my natural.
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  #1732  
Old 06-07-2014, 10:21 AM
thomasec84 thomasec84 is offline
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What's the best way to see if a 2009 X3 is exhibiting this issue during a test ride? Is there anything specific I should be asking the dealer?
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  #1733  
Old 06-09-2014, 10:32 AM
mtbrdad mtbrdad is offline
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Quote:
Originally Posted by thomasec84 View Post
What's the best way to see if a 2009 X3 is exhibiting this issue during a test ride? Is there anything specific I should be asking the dealer?
Since it's an 09 is it still covered under any BMW CPO extended warranty? And the other question is are you fairly close to a BMW dealer?

Regarding the actual shifting problems it appeared for me while taking a rolling left turn and then trying to accelerate through the turn, it was as if the car had no power while going through the turn. I'm in the suburbs and I would be taking a left turn off of North Ave. going about 40mph and then braking to about 15mph for the turn. I bought my car last spring and it had some CPO warranty remaining so I had the EGS and DME software upgraded at the dealer. Now I drives pretty good and it has almost no problems shifting correctly, although there are times when I recognize I'm going to need more power fast and then I simply drop it into sport mode. Good Luck.
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  #1734  
Old 06-10-2014, 10:48 AM
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madurodave madurodave is offline
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Quote:
Originally Posted by x3oiler View Post
re mechatronics = good chance



The X3 I used to own had Jekyll and Hyde characteristics in the AT and the bad part was that some issues would only appear after a long time at highway speeds. Example: First set of traffic lights and from a standing start the change from 1 to 2nd occurred way too early with an audible bang under the car and then AT slurred as the torque converter caught up with the premature change.

This is not conducive to dealer testing. ie at least 2 - 3 hours at 100kmph is a precursor. Sure a software update (dated 2008) fixed a lot of issues such as holding on to 1st gear way too long but not all issues fixed.

So what really peeved me was the comment after the last service from a service tech just before I sold the car - and this after 6 years of this problem and denials - "oh that would be the mechatronics unit then". Dang I was furious . . 6 years of trying to get recognition that a problem existed to have this stated effectively "off the record".

From my signature you can see my decision . . not that I changed vehicle due to this as you tend to get immune after a while but I needed more towing capacity but no way was I EVER going to buy another BMW after this history . . bye bye BMW and forever.



So yes, the mechatronics on the GM 6speed AT prior to 2008 is crap IMO and should have been subject to a total recall. ROTFLMA when I consider that chances of THAT ever happening at the time.



Disclaimer: Please read the above in the context that the author is a very very jaded (ex) BMW customer.

165k miles on my 2007. Still going strong!


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  #1735  
Old 06-10-2014, 10:51 AM
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madurodave madurodave is offline
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Quote:
Originally Posted by x3oiler View Post
Heck I am surprised. No response. After 70 pages either the X3 population is dying out or the owners have given up.



But in response to the last posters question, I would have thought that a transmission reset would have been done after the rebuild. The old "turn the ignition key to the second stop but not starting the the engine, press foot to floor for 20 seconds, remove foot from accelerator, turn ignition key to off then start engine" will help but is only reseting the adaptive throttle settings I suspect and not the actual transmission. Deeper diagnostics are required to reset the transmission adaptive memory but I have deleted all that software now so not in a position to advise. I do sincerely hope juniorcdr32 that you had some success but I suspect that as per my last post that the mechatronics as a whole is the root of all evil in the X3 At and was upgraded (from memory) in the 2008 model. Should have been a total recall but fat chance of that. BMW lost me as a customer for sure and BMers cost a LOT in AUS (fat profit) they missed me for the rest of my natural.

Most of original posts were just from a few early adopters. Software fixed tool care of most of the rest.

I put 150k on mine done purchase with 15k. Runs strong. AT no issues no leaks, as opposed to my now leaking oil pan!


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  #1736  
Old 08-02-2014, 05:44 AM
x3oiler x3oiler is offline
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Software released in 2008 made a big difference to the AT behaviour (one would question why it took so long btw) but fundamentally the mechatronics unit in pre 2008 AT units was prone to defects. The 2008 model onwards has an improved unit.

Edit: oops sorry repeating myself - too long since last post - my bad.
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Last edited by x3oiler; 08-02-2014 at 05:46 AM.
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  #1737  
Old 08-11-2014, 02:15 PM
ocalarick ocalarick is offline
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X3 trans in Safety mode

after driving for some time the trans will slip into safety mode and will not shift again until I stop and shut it off my mechanic tells me to change the oil and filter is this a fix or should i do something more
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  #1738  
Old 09-27-2014, 11:56 AM
68v 68v is offline
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07 x3 misses gears, jerky shifts, when coasting goes into neutral then jerks into gear and limp mode light comes on. Go into a corner and cant seem to figure out what gear it needs and limp mode light comes on. Seems to run more in limp mode than standard. Beginning to hate BMW till I jump in the z3 and its all forgotten it I have to drive the x3 again. Worst vehicle I have ever owned. Cant get enough out of it or I'd take it to the junk yard............
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  #1739  
Old 09-27-2014, 07:03 PM
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Now over 170k miles. Trans running great.
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  #1740  
Old 09-28-2014, 07:41 AM
x3brian x3brian is offline
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Over 150k on my 09. Transmission still running great!


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  #1741  
Old 09-28-2014, 07:54 AM
68v 68v is offline
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78k on mine and its a piece of S_ _ T. BMW cant fix, local trans shop cant fix.
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  #1742  
Old 10-06-2014, 01:40 AM
mangoose mangoose is offline
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Shop says software update fries the computer?

I bought a 2008 3.0si which has the (apparently common?) issue of refusing to downshift while trying to accelerate (ie. no throttle response).

I took it to an independent bmw mechanic and they said there is a software update, but it has been known to fry the chip. I see a few others who have done this on this thread, but wanted to see what the permanent fix and at what cost it was fixed?

I could have these guys do the update and hope for the best, but what exactly could fail and how much would it cost to replace?

Alternatively I could take it to a dealer and have them do the update...would they replace anything they fry with the software update or would I be on the hook to replace it even at the dealer?

Lastly, has there been any other solutions that might not cause further damage? Everything else seems fine, but the throttle response is enough of a concern that I want to fix it.

Last edited by mangoose; 10-06-2014 at 01:42 AM.
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  #1743  
Old 10-06-2014, 06:51 AM
mtbrdad mtbrdad is offline
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I have an 07 3.0si I bought used about March of last year and I had the updates done at the dealer and they went in smoothly. I'm not sure if all previous driver information is erased when they do the updates but on mine it was, so it was now going to learn and shift per my driving style. When I got it back I drove it like I stole it so it would learn to shift how I wanted it to shift. Now I have no problems with it holding the higher gear except occasionally around circular on ramps, but then I instantly shift to sport drive and it then holds a lower gear and feels like a manual transmission. How long have you had it, it's a quirky vehicle. It will take a good 6 months to learn how to drive it, but once you do you'll love it. Look ahead when you're drivng and whenever you anticipate you'll need to pass or have extra power immediately pop it into sport drive, that's the only way to drive this car.
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  #1744  
Old 10-22-2014, 11:27 PM
SpencerBMW1 SpencerBMW1 is offline
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'07 BMW X3 Rough Trans shifts and Cylinder Misfire

I originally found this tread as link to the "dreaded '07 - '08 X3 transmission software issue" which was included in a response to another tread on BMW cylinder firing order and cylinder misfire. I thought it might be helpful to share my experience.

I had recently purchased an '07 X3 with 118k miles on it. I noticed an occasional hard or late upshift in the transmission, as well as occasional hard or clunky downshift just before coming to a complete stop. My thought was; it's just the way it is, especially with 118K miles. I thought I might try changing / flushing the trans fluid and the transfer case fluid to see if that might improve things; what did I have to lose other than cost of the fluid. Regardless, it still would be good preventative maintenance. Other than that, everything seemed fine overall as it was running smoothly and quietly.

Before I could get around to doing the flulid change I had a more pressing issue with a cylinder misfire. The other day I went out to move the X3 on the driveway to allow another vehicle out of the garage, then a short time later I had to move it again. On the second restart all of a sudden I had rough idle, shaking, and a check engine light / engine service soon indicator. The first thing that came to my mind was: this seems just like the issue that was a continuing saga I had just gone thru with our '02 Jeep Liberty debacle, which ultimately turned out to be the most disappointing vehicle purchase we ever made.

Heed warning - steer clear of any Chrysler / Jeep product with the 3.7L V6 or the 4.7L V8 engines, you can thank me later. (maybe something built in '09 or later would be ok, but I still wouldn't want to take a chance)

Back to the issue at hand - turns out according to my code reader, the X3 had a #4 cylinder misfire. Hence, my subsequent search for cylinder firing order which led me to the tread on the X3 trans software issue. At first, I was going to change all the spark plugs / wires and ignition coils as I have done on other vehicles, including the aforementioned Jeep and a couple of Porsche 944's, all of which made little or no difference on how each of those ran. So this time I was going to take a more systematic approach as I have done on a few other vehicles in the past; that is only replace the part(s) that are faulty or defective.

Before I got around to doing that I found a tread (which many chimed in and concurred) on how BMW's don't like being started for a short time, i.e the driveway shuffle, as this can cause computer faults, misfires, and rough idle; sitting for a long while usually allowed everything to reset and correct itself. I drank that KoolAide for a hot minute, likely out of laziness, hoping that sitting would somehow magically fix my misfire issue. Then I suddenly remembered that I have owned several other BMW's over the years - (4) 3-series from mid '90s to mid 2000's, (3) 5-series from late 90's to early 2000's and a '94 740iL (I think I miss the 740 the most out of all of them) Anyway, I had done the driveway shuffle with all of them multiple times during winter - summer and NEVER experienced the aforementioned issue.

Here's my take on starting and running any vehicle for a short amount of time - if you can't drive or run it till it reaches full operating temperature, just run it for a minute or two at most, then shut it off. The thing to avoid is the the in-between time; more than a couple of minutes, but not long enough to reach full operating temperature. This is the time when moisture and condensation forms, but does not fully burn-off or evaporate. Think about the "little old lady from Pasadena" vehicle - older or late model vehicle with very low miles relative to it's age - this a car to avoid as it likely was only used for short trips that did not allow it reach full operating temperature! (now of course if you can verify that it was driven on longer distance drips, including highway, then by all means, go for it, who wouldn't want a low mileage find at a great price!)

Sorry, I digress, back the misfire issue on my X3 and the fix. I bought one spark plug, and one ignition coil with the thought of replacing the plug and coil on the #4 cylinder. Instead, I decided to piece meal (go cheap) on the repair by first just switching the existing #4 and #1 coils. After doing that, but before starting the car, I reset / cleared all the codes. Upon restarting the X3 I noticed it was still running rough, but in a different way, then a few minutes later the check engine light came on again; this time with #1 cylinder misfire, along with a couple other new odd codes. Knowing that the coil was obviously defective, I replaced the coil on #1 cylinder, but did not clear any of the codes. This time, it ran smoothly and almost immediately the check engine light went away on it's own.

Now get this - as a side benefit, now the transmission is shifting a lot smoother, with no hard downshift when coming to a stop! Whether a fluke, stroke of luck, or whatever reason this happened, the engine and trans are more in harmony. Just by changing one ignition coil all seems near perfect, and I'm not changing any of the plugs or any more of the coils at this time. I have done this in the past on some vehicles to save money, but forever more I am going to adopt the, "if it ain't broke, don't fix it," philosophy on all my vehicles! Don't get me wrong I am still going to change all of my fluids on a regular basis, however everything else I'm not touching unless I have to. (the exception would be when an identical part exists on the opposite side of the vehicle, i.e. struts, tie rods, brakes, etc) Changing them both at the same time makes good sense on several levels.

Well my first post is a mini-novel, hopefully someone will find it interesting or better yet helpful in their situation. Happy Motoring

ps - if you have never taken a car to the track, my advise - register for a HPDE event with one of your local car clubs as soon as possible, you'll never regret it

Last edited by SpencerBMW1; 10-22-2014 at 11:51 PM.
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  #1745  
Old 10-23-2014, 12:10 AM
hyksos hyksos is offline
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The transmission have multiples mode, it adapt to the driver habit.

My guess is that you probably did some hard acceleration to test your new coil.
When you accelerate hard, the transmission move to the sport mode, in sport mode the transmission is quicker and seems smoother.

When you'll return to normal use with no hard acceleration the transmission will eventually move back to economy mode and you'll have the same 'lag' as before.
The new software update fix this.
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  #1746  
Old 10-23-2014, 10:58 AM
SpencerBMW1 SpencerBMW1 is offline
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I know the transmission is adaptive, however unless I misunderstood what you meant, I don't believe the trans goes into sport mode on hard acceleration. I believe the computer changes the mapping on hard acceleration, however to go into true "sport mode" I believe the only way that happens is when you manually move the shift lever over to "S" sport mode.

Of course without moving the shift lever up or down the trans still functions as fully automatic until you move the lever up or down a gear then you are in "manual sport mode" on the trans.

Side note - besides the quirky shifting that occurred prior to changing the coil, the vehicle would also occasionally bog-down on hard acceleration as well. I would step on it, and at first the car would accelerate quick, then suddenly for no apparent reason it would bog-down, the rpms would drop and it would slow considerably until I let my foot off the gas. This anomaly also is gone with the recent new coil swap.

Keep in mind, prior to the day that there was sudden rough idle, there was never a check engine light or any other indications displayed for any malfunction.
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  #1747  
Old 10-23-2014, 01:56 PM
Supercourse Supercourse is offline
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Yes, one of the many mappings is thought to be the equivalent of, or the same as, (the manually selected) Sport Mode.

Makes sense that this would be the case, if the computer already has that mode programmed, why not use it? Likely the most spirited of the adaptive options - or maybe there are some beyond that even more exuberant.
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  #1748  
Old 10-23-2014, 02:52 PM
mtbrdad mtbrdad is offline
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SpencerBMW1, With 118k miles on it I would make sure all the spark plugs were changed and not the original plugs, which should have been changed at 100k. A plug that is past its life will draw more voltage and put more of a strain on an ignition coil possibly causing it to fail. Just my $.02 worth of thought.
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  #1749  
Old 11-02-2014, 08:19 AM
68v 68v is offline
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Ok, had a used trans out of a 08 put in my 07 and my x3 has never driven so nice!! Shifts like it should drives super... Love my x3 now.
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  #1750  
Old 11-06-2014, 12:05 PM
irvingjai irvingjai is offline
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Well, excited to finally be a BMW Owner, but sad to say, I'll be joining in and following this thread. I purchased my 2008 X3 fully loaded, with 85k miles, approximately 3 weeks ago. Two weeks into owning it, I noticed some rough shifting in the transmission, mostly on downshifts in the lower gears. Took it in for service, as i only have the limited warranty of 30 days or 1000 miles. They flushed the transmission fluid out, replaced the fluid, and added an additive. I was not happy with the way the issue was addressed. It felt like this was a bandaid to an issue that would rear its ugly head in the coming weeks and months after I am out warranty. I drove off the lot and it seemed to shift smoothly. Then the next few days, I experienced some rough shifting from a cold start, but it would be non existent once the car warmed up. I would also notice some funky shifting when braking and then accelerating where the rpm gauge would shoot up and down until it found the right gear. I took it back in for service, mind you, I am now out of the 1000 miles given in the limited warranty, but the service dept assured me, verbally, that I had the issue documented in warranty and that I would be covered. They kept the car for 3 days and experienced no rough shifting and told me that the funky shifting happening while braking and accelerating was a "normal" thing for this model and year. That there was no fix to be had, and that I had to go on my merry way.

So for now, all I have is a hope and prayer that this doesnt become an issue in the coming weeks and months and I'll be forced to foot a repair bill I shouldnt be responsible for.

Last edited by irvingjai; 11-06-2014 at 12:06 PM.
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