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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Car Slips When Accelerating



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      09-10-2019, 10:08 PM   #1
HDFEBREZE
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Car Slips When Accelerating

About 1.5 weeks ago, I started to notice that when accelerating from stops my car would slip/stutter. It doesn't happen exactly when changing gears but when under torque on acceleration. I feel that it has got worse over these past 1.5 weeks. I was told that I should change the transfer case oil but I don't see how that would fix it, I would also like to confirm the issue before throwing money at it. Also, I would like to note that I don't seem to notice this slip when making right or left turns, only when going straight. Also today, when I was on the highway doing about 60mph, I floored to see how it would react. It slipped and stuttered, but most noticeably it veered my car to the right. It did that twice. My car is a 2010 535xi with about 162k miles on it. I got the car around 154k miles and never did any type of transmission, transfer case or differential oil changes. Anyone have an idea as to what is causing this. Thanks
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      09-10-2019, 10:14 PM   #2
The Wanderer
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Could potentially be clutch slip? When you experience the slip do you see the revs jump up quickly without giving power and then revs drop and car accelerates like it should? Any recent mods or tunes?
However this idea does not explain the pull to the right.
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      09-11-2019, 07:12 AM   #3
Silkyg
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Quote:
Originally Posted by HDFEBREZE View Post
About 1.5 weeks ago, I started to notice that when accelerating from stops my car would slip/stutter. It doesn't happen exactly when changing gears but when under torque on acceleration. I feel that it has got worse over these past 1.5 weeks. I was told that I should change the transfer case oil but I don't see how that would fix it, I would also like to confirm the issue before throwing money at it. Also, I would like to note that I don't seem to notice this slip when making right or left turns, only when going straight. Also today, when I was on the highway doing about 60mph, I floored to see how it would react. It slipped and stuttered, but most noticeably it veered my car to the right. It did that twice. My car is a 2010 535xi with about 162k miles on it. I got the car around 154k miles and never did any type of transmission, transfer case or differential oil changes. Anyone have an idea as to what is causing this. Thanks
Is it throwing any codes or going into transmission failsafe mode? Any leaks from the transmission? My guess is the mechatronic bridge seal adapter, solenoids or low trans oil. Maybe a combination of the above.
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      09-12-2019, 08:07 PM   #4
HDFEBREZE
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Quote:
Originally Posted by The Wanderer View Post
Could potentially be clutch slip? When you experience the slip do you see the revs jump up quickly without giving power and then revs drop and car accelerates like it should? Any recent mods or tunes?
However this idea does not explain the pull to the right.
No, rpm is consistent and doesn't move around. It feels like something is engaging and disengaging under high torque circumstances.
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      09-12-2019, 08:23 PM   #5
HDFEBREZE
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Quote:
Originally Posted by Silkyg View Post
Is it throwing any codes or going into transmission failsafe mode? Any leaks from the transmission? My guess is the mechatronic bridge seal adapter, solenoids or low trans oil. Maybe a combination of the above.
No leaks, the codes im currently getting are :

2DED - Power management, closed-circuit protection
2C7B - Lambda probe on the catalyst, signal

5EBA - Steering Angle Sensor

54C6 - Oelverschleiss

A559 - Klemme30g f shutdown

604E - Error RDC System / Error tire pressure control system
6053 - Error transmission channel Ant / Error transmissionchannel RR

A06B - Bumper antennas defective / PGS door antenna BFT
A097 - Days 1 WUP no answer / DAYS FAT WUP no answer
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      09-13-2019, 06:53 PM   #6
HDFEBREZE
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I would like to note that I got a new code today.

55C3 - VGSG-wheel-Notlaufregelung activated. No DXC target torque setting
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      09-13-2019, 09:18 PM   #7
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Sounds like your transfer case and/or transfer case actuator is going bad. You'd get a fault for oil wear for the transfer case if that was the only issue.
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      09-17-2019, 06:51 PM   #8
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Quote:
Originally Posted by WoodE30 View Post
Sounds like your transfer case and/or transfer case actuator is going bad. You'd get a fault for oil wear for the transfer case if that was the only issue.
I do have a transfer case oil wear code. Could that be it?
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      09-17-2019, 06:52 PM   #9
HDFEBREZE
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Quote:
Originally Posted by blown07 View Post
Xdelete shows you total work load on the clutch packs in 3 different power classes. I actually got xdelete mainly for this feature. Also shows the angle of the actuator/xfer case temp. For OP it would confirm it's the transfer case if the car runs fine in RWD mode. Could be the actuator though but that usually lights up the dash.
I noticed it costs $150, can i see and do the same stuff on inpa?
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      09-17-2019, 07:02 PM   #10
HDFEBREZE
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QUICK UPDATE:

So I would like to note that I am driving with 225/55/17 in the front and 235/55/17 in the back. I noticed one tire was low on air-filled it back to spec. I then went for a test drive and the drive was 100x better, not perfect, but better. I updated the software for the Transmission and reset it to relearn my driving. Accelerating, its perfect 98% of the time. I do get that rare odd clunk. But most noticably any high tourque now above 2300-2500 rpm, i get the traction control light flashing and the car steering pushes to the right. I should have mentioned this in my first post but i did change all 4 tires about 2 months ago. My brother was also mentioniong how senative the AWD system on BMWs are. The sticker on my car says it came with 250/50/18 on all 4, im currently driving one size wider in the back and the front and back are 2 differant brands. I was previously driving with 255/40/20 before with no problems at all for 2 years. Could this all be a tire problem?
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      09-17-2019, 10:47 PM   #11
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Quote:
Originally Posted by Silkyg View Post
Is it throwing any codes or going into transmission failsafe mode? Any leaks from the transmission? My guess is the mechatronic bridge seal adapter, solenoids or low trans oil. Maybe a combination of the above.
Is there any way of knowing whether or not just the mechatronic seal and fluid needs changed rather than replacing all of the solenoids too? Iíve got 104k miles on mine and notice a bit of a stutter from 1-2 and 2-3 but after the trans is warmed up it shifts fine.
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      09-18-2019, 08:50 AM   #12
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Quote:
Originally Posted by blown07 View Post
your tires are 100% the problem
Too big?
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      09-18-2019, 08:51 AM   #13
HDFEBREZE
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Quote:
Originally Posted by crosbycail View Post
Is there any way of knowing whether or not just the mechatronic seal and fluid needs changed rather than replacing all of the solenoids too? Iíve got 104k miles on mine and notice a bit of a stutter from 1-2 and 2-3 but after the trans is warmed up it shifts fine.
Funny, mine drives good when cold and bad when warm. But here is a good video of exactly what i will be changing.

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      09-18-2019, 10:08 AM   #14
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Quote:
Originally Posted by HDFEBREZE View Post
Funny, mine drives good when cold and bad when warm. But here is a good video of exactly what i will be changing.

Guess Iíll start with the fluid, sealing plugs, and the mechatronic bridge seal. Iím hoping a simple fluid change along with these seals will remedy the shifting issue and I wonít have to replace the solenoids too.
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