4.8i Jerky Transmission

[Texas5]

evolver, who's your service dealer?

Took mine in recently (to Classic) for transmission issues. They reprogrammed it, but it's not really any smoother. Maybe doesn't do the downshift to 1st kick as much, but otherwise it still sucks.

Is this only a 4.8i problem? or does it affect the 3.0i and diesel as well?

[Tae]

Originally Posted by Texas5

Is this only a 4.8i problem? or does it affect the 3.0i and diesel as well?

I have an '08 3.0si w/13k miles on it and I've never had the issues described by you 4.8i drivers. Besides from a sometimes "sluggish" response in D mode, no harsh downshifts or jolting starts from a rolling acceleration have been observed.

Could be that the 3.0 I6 engine doesn't generate enough power to illicit that whiplash like sensation to notice or just the fact that the 6spd is paired better in the 6cyl combo. Hope that helps....

[evolver]

Originally Posted by Texas5

evolver, who's your service dealer?

I get mine serviced at BMW of Dallas, where I bought it.

[grey]

Originally Posted by e_sixty_lover

Hi X5World, I have a 2008 4.8i and I have noticed that when starting on a hill from a dead stop or from a stop light in "D" my Transmission has a abrupt jerk as the early E60's did. It isn't noticable in "DS" but I don't drive want to drive in this mode all of the time. It is really un-comfortable as sometimes It is almost impossible to have a smooth start. A software update should be able to fix this but I was wondering if anyone else was having this issue.

Thank You.

This is normal. My 2008 4.8i does it. Sometimes I feel that others on the road might be thinking I'm showing off rev'ng my engine. All I do is is pull to a stop, and then start off slowly. Happens uphill and downhill.

[ShantF1]

Do a trany reset. Leave the car on position 2 the one before the engine start (were all the dash lights come on) hold the accelerator down all the way for 30 sec and you should hear a noise… that's the result of a successful reset.

[grey]

Originally Posted by ShantF1

Do a trany reset. Leave the car on position 2 the one before the engine start (were all the dash lights come on) hold the accelerator down all the way for 30 sec and you should hear a noise… that's the result of a successful reset.

Sorry didn't get that. Not sure what u mean by option 2. E70 just have the button to start.

[Muz]

didnt work for me this morning either

[Silver X5]

Originally Posted by ShantF1

Do a trany reset. Leave the car on position 2 the one before the engine start (were all the dash lights come on) hold the accelerator down all the way for 30 sec and you should hear a noise… that's the result of a successful reset.

I did tis the other day....i didnt hear the noise you mentioned....but the auto does change a lot nicer....not as jerky and seems to be more predicable. thanks for the tip

[SCardamon]

SI B 24 06 08
Automatic Transmission
October 2008
Technical Service


SUBJECT
E70, X5 4.8i with N62TU and 6HP26TU - Various Driveability Complaints

MODEL
E70, X5 4.8iA produced up to 10/08

SITUATION
The customer may complain about one or a combination of the following situations, listed below:

1. Jolts and jerks when pulling away during a 1-2 upshift.
2. 3-4 shift jolts when switching from acceleration to deceleration during or shortly before the shift.
3. Harsh 2-1 downshift (jolt) when coming to a stop with light brake application.
4. Jolts and/or jerks felt when reaccelerating after coasting.
5. Judder when gently accelerating (most noticeable at an engine speed below 2,000 RPM).

CAUSE
DME and EGS software calibration

SOLUTION
On a customer complaint basis only, check the vehicle's integration level.If the integration level is E070-08-05-525 or lower, then reprogram/recode the complete vehicle with a current Progman version (target integration level is E070-08-09-520, available since the release of Progman V31.1).

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty or the Certified Pre-Owned Program.

[Xtony]

Originally Posted by SCardamon

SI B 24 06 08
Automatic Transmission
October 2008
Technical Service


SUBJECT
E70, X5 4.8i with N62TU and 6HP26TU - Various Driveability Complaints

MODEL
E70, X5 4.8iA produced up to 10/08

SITUATION

The customer may complain about one or a combination of the following situations, listed below:

1. Jolts and jerks when pulling away during a 1-2 upshift.
2. 3-4 shift jolts when switching from acceleration to deceleration during or shortly before the shift.
3. Harsh 2-1 downshift (jolt) when coming to a stop with light brake application.
4. Jolts and/or jerks felt when reaccelerating after coasting.
5. Judder when gently accelerating (most noticeable at an engine speed below 2,000 RPM).

CAUSE
DME and EGS software calibration

SOLUTION
On a customer complaint basis only, check the vehicle's integration level.If the integration level is E070-08-05-525 or lower, then reprogram/recode the complete vehicle with a current Progman version (target integration level is E070-08-09-520, available since the release of Progman V31.1).

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty or the Certified Pre-Owned Program.

I had that done and it didn't make any difeerence.