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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)

7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #76  
Old 01-19-2013, 09:57 AM
stuartjohn24 stuartjohn24 is offline
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How's it going? What's the latest with the car, Is the car still driving well? I'm about to order my sensors but snow here has postponed things!

Stuart
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  #77  
Old 01-19-2013, 01:20 PM
cmpcpro cmpcpro is offline
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Quote:
Originally Posted by stuartjohn24 View Post
CMPCPRO

How's it going? What's the latest with the car, Is the car still driving well? I'm about to order my sensors but snow here has postponed things!

Stuart
Well do I have an update for you.. After new CPS's I noticed a nice increase.. well someone posted on here about replacing the orings on the Vanos solenoids and how it made a huge difference.. well I noticed I had some build up coming from under three of the four so I replaced the orings.. Inners and outters.. they were $13 total. My INPA won't let me reset adaptations I have ver. 4.4.7 and it's not there.. when I upgrade to 5.0.2 I can't even get into the NE9 for N62.. anyway, without resetting adapts I still noticed a VERY NICE difference, maybe a litte more than the CPS's so I am pretty happy now with the added or I should say restored power.
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  #78  
Old 04-06-2013, 06:57 PM
aarash2000 aarash2000 is offline
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Quote:
Originally Posted by N62b44 View Post
Guys,
I was working on my 745i for 2 months to fix the issue with slight hesitation on low rpms.
Recently replaced:
Vcg
Coils
Spark plugs
Compression test is perfect
Fan clutch

And still no effect, just may be a little better.
Inpa, Gt1 are not showing anything, like everything is perfect.
Later some guys came over and I tested their cars with less miles, and guess what??? Same exact issue:
It's slow from pickup, also if you rev the engine you can feel vibration like a small misfire smth.but idling is perfect.
Recently my friend from Europe finally proved my theory about vanos:
He replaced all 4 units with new ones, and now it's day and night!!! It drives like new!!! Awesome torque from low rpms!!!
He disassembled old ones though they are not fixable he says it's same exact sh**Ty issue, as was going on and is going on with M62, m54, m52tu etc!!! Every vanos engine comes with those shty seals, which shrink and cannot move the piston to adjust the timing!!!
I used to have 530i 2003 a year ago, after replacing everything, I was recommended to replace vanos seals with beisan ones!! The result was awesome, and it still drives great.
In other words the ignition is off on low rpms, the piston is pushed for high rpms setting and that's why it drives crappy from low rpms.
I also found here lots of ppl with newer engines complain about exact same issue. Dealer says: your car has no issues, so get last.
Try To rev your car to 3-4rpms and you'll fell slight vibration.
I'm upset with BMW vanos design, so aftermarket seals last 100k miles. And they have had this issue from 90xx and they still install it???
My friend from BMW dealer told me that they replace those units for newer leased cars so they can sell those. Unfortunately they don't last at all!!!! Is it a BMW joke??? Some companies designed sprint booster so you don't have to floor it that much lol
Some ppl think it's okay, but come on 333hp and shty low end torque?? It's still good on the highway, but city mpg is horrible. And if compression test is great on every cylinder, everything is new and no errors, there should be an explanation, right? Saying that my car is old is not explanation at all. So now it's explained.
Simply go to the dealer, ask for a test-drive any new BMW v8, and you'll feel the difference. The throttle response should be instant, it will remind you driving any Toyota, they are nice from low rpms bc their vvti never fails, even after 200k miles.
Hi! I got a question for you!? Are you talking about vanos solenoid or vanos adjustment unit?! I have the same low speed problem and I was wondering which 4 unit you are talking about?! Thanks you!
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  #79  
Old 04-07-2013, 11:04 AM
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skybmray skybmray is offline
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Are these the parts we are talking about from BMA ?

http://www.bmaparts.com/ShopByVehicl...Sensor&mode=PA
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Last edited by skybmray; 04-07-2013 at 11:10 AM.
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  #80  
Old 07-30-2013, 04:46 PM
carl0s carl0s is offline
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Is it not possible for the flat sealing ring in the end of the camshaft to wear?
This looks to be the same design as the piston seals used on the M54 vanos pistons - those that are replaced with the aftermarket rebuild kits.

It is responsible for the oil feed into the N62 vanos adjuster units.

Part number 2 on this diagram:



It is a replaceable part, part number 11311705512. two per camshaft.
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  #81  
Old 07-30-2013, 04:55 PM
carl0s carl0s is offline
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Actually nevermind. I just checked on my cams, and that seal is made of metal, not the fibre stuff from the M54.
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  #82  
Old 07-17-2014, 05:25 AM
PancakeBimmer PancakeBimmer is offline
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DOuble post, delete...
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Last edited by PancakeBimmer; 07-17-2014 at 05:39 AM.
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  #83  
Old 07-17-2014, 05:25 AM
PancakeBimmer PancakeBimmer is offline
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Sorry for bumping a year old thread.

I am trying to find some information on above mentioned camshaft sensors for 2007 750i (production 05/2006). Realoem doesn't seem to include it (sensor) in any diagrams, while it can be found in Engine Electrical Systems > Ignition > Sensors.
Similarly, there is nothing mentioned about the sensor in workshop manual. Am I missing something? Amongst other issues, could low MPG (15-18) be caused by these camshaft sensors?
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Last edited by PancakeBimmer; 07-17-2014 at 05:40 AM.
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  #84  
Old 07-17-2014, 06:20 AM
gkent gkent is offline
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The camshaft position sensor part # for 750i/E65 is : 13627525014 (part # 6 in the RealOEM diagram):
http://realoem.com/bmw/showparts.do?...11&fg=15&hl=13

There are 4 total, 2 for each bank, located at the rear of the engine
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  #85  
Old 07-17-2014, 06:40 AM
PancakeBimmer PancakeBimmer is offline
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Quote:
Originally Posted by gkent View Post
The camshaft position sensor part # for 750i/E65 is : 13627525014 (part # 6 in the RealOEM diagram):
http://realoem.com/bmw/showparts.do?...11&fg=15&hl=13

There are 4 total, 2 for each bank, located at the rear of the engine
Ahh, thank you.
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  #86  
Old 07-17-2014, 07:31 PM
schpenxel schpenxel is offline
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Quote:
Originally Posted by PancakeBimmer View Post
Sorry for bumping a year old thread.

I am trying to find some information on above mentioned camshaft sensors for 2007 750i (production 05/2006). Realoem doesn't seem to include it (sensor) in any diagrams, while it can be found in Engine Electrical Systems > Ignition > Sensors.
Similarly, there is nothing mentioned about the sensor in workshop manual. Am I missing something? Amongst other issues, could low MPG (15-18) be caused by these camshaft sensors?
Are you getting any other error codes?
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  #87  
Old 07-17-2014, 09:29 PM
PancakeBimmer PancakeBimmer is offline
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Quote:
Originally Posted by schpenxel View Post
Are you getting any other error codes?
There are no codes, other than "NO BSD COMM from alternator." The issues I am after are rough idle for ~20 seconds on cold start and 15-18MPG. Figured it would be easier to try other things before going big.

I cleaned the sensors and connectors, but found dirt only on the outside. I have doubts about it solving the issues of 750i, yet it seemed like engine was running better after sensors were cleaned. Not going to know until morning cold start.
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  #88  
Old 07-18-2014, 12:36 AM
Simplechris Simplechris is offline
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Mein Auto: BMW 750LI
Guy my 06 750Li just suddenly developed series of problems viz,
Increased emissions
Engine malfunction with the sign of check engine
Numerous error messages like servotronic malfunction , drive moderately , etc
Acceleration not responding on throttling, engine goes off on throttling while idle
Lastly it has refused to start.
Pls can battery be the cause of all these problems?
Is there any one out there having or have had these kind of problems ? Any one knows what i can do?
Waiting urgently
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  #89  
Old 07-18-2014, 09:24 AM
PancakeBimmer PancakeBimmer is offline
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An update regarding cleaning camshaft sensors. Owner reports about 40% improvement, so might replace the sensors with brand new ones.
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  #90  
Old 10-11-2014, 11:15 AM
andrek andrek is offline
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Hi, sorry to bring up the old thread but I thought this would be the best place to ask.

I have 2006 550i Sport with 89k on it and I definitely have some of the drivability problems that are described here. I wanted to ask if it is sufficient to just replace the CPS sensors and have the Vanos solenoids cleaned\ o-rings replaced or am I better off getting whole new Vanos units? I have read elsewhere that these new Vanos units do not function 100% after just cleaning. Its not like I have extra $500 burning a whole in my pocket but if it will make a big difference then I might as well do it right the first time.
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  #91  
Old 10-11-2014, 03:43 PM
carl0s carl0s is offline
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The vanos units don't fail, and the solenoids.. Well you can check them for dust buildup around the filter/metal screen part.

If vanos was malfunctioning you would see a difference between the camshaft actual position vs. Commanded position in INPA wouldn't you?
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  #92  
Old 10-11-2014, 07:09 PM
andrek andrek is offline
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Sorry, I was referring to vanos solenoids as units. I have read that when these solenoids wear out they don't extend fully and the valve timing does not adjust as quickly as it should. I am a bit baffled by the fact that DME doesn't report issues with vanos or CPS when things get out of sync like that.

Something interesting I noticed. Last couple of two times I have done oil changes is used Liqui-Moly Proline Engine Flush and there was a noticeable improvement in engine response each time. The only explanation for that I can fathom is that it is removing some of the sludge out the Vanos system.
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  #93  
Old 11-11-2014, 04:38 PM
javito javito is offline
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I think my vanos adjusting seals are bad,i have slow pick up too,i already changed the cps all 4 plus the solenoid orings and no difference,anybody in florida that can do that type of job?thanks
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  #94  
Old 11-11-2014, 04:54 PM
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First_745Li First_745Li is offline
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Where in FL are you?
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  #95  
Old 11-11-2014, 05:07 PM
javito javito is offline
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Im in port st lucie
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  #96  
Old 11-11-2014, 06:22 PM
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First_745Li First_745Li is offline
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Im in port st lucie

My Indy is in Lake Park, about 45 mins to an hour away from you. I take all my cars there. I'll PM you his information if you're willing to take the drive.
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  #97  
Old 11-11-2014, 06:26 PM
javito javito is offline
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Sure,i appreciate that,did you had the same problem with vanos?
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  #98  
Old 11-11-2014, 07:31 PM
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First_745Li First_745Li is offline
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No. But I'm sure it was coming.
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  #99  
Old 11-12-2014, 04:34 AM
javito javito is offline
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Thanks for the info first_745
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  #100  
Old 06-28-2015, 11:56 AM
stephane76700 stephane76700 is offline
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Quote:
Originally Posted by Black_on_black View Post
Damn, I have the same issue, connected inpa and I'm not sure but logically according to these pics my vanos suuuccks???
Does it mean the angles are completely off??? Does valvetronic look okay at least???
As I understand input value- what dme wants, actual value- after adjuster?
i've the same issue ! exactly like you, output of bank 1 and 2 keep looked at 120° with consign at 4 at idle !

but when i press throttle, just very very very little for up yo 550rpm, values changes but not like DME would

i cleaning 4 vanos with brake cleaner in first time and with ultrasonic cleaner with gazoline during 10 minutes for every vanos, CPS cleaning too and interchanging.

When i drive, it's more good than before, but at idle, like before little rough, no error code in dme, look's like all is perfect !

do you have a solution ?

Edit

I've tested with 12v power on 2 of 4 and inversed 2 solénoïd from bank 1, exactly same result !

They were submereged in gazoline and send 12 volt by intermitence for move piston, after in oil and the same thing

And in inpa, same before cleaning

Last edited by stephane76700; Yesterday at 11:57 AM.
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