2007 4.8 X5 Lunging Problems

[brian5]

Software update (SIB 24 06 08) fixed this problem for me last year.

You should be able to search on that SIB for more info.

[Penguin]

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.

[autoque]

Originally Posted by Penguin

1. Jolts and jerks when pulling away during a 1-2 upshift.
2. Harsh 2-1 downshift (jolt) when coming to a stop with light brake application.

This would never happen though unless you're driving in manual mode, correct? The automatic/DS mode doesn't start out or stop in 1st gear.

[jharms]

Thanks to all for this information. I'm going to print out this thread and bring it to my service advisor. I sure hope that it fixes our problem! I'm a little concerned that this will not be the answer to our prayers, however. I have not noticed situations 2-5. Situation 1 surely could describe our problem (Jolts and jerks when pulling away during a 1-2 upshift.). Actually, now that I typed this I'm not sure that this is our problem. I don't think that my problem is in shifting from 1 to 2 but simply controlling the throttle at the start in 1st. A light touch on the accelerator intermittently yields a "jack rabbit" start.

I now suspect that the dealer may have been trying to resolve the problem with this course of action when our problem may be unrelated.

Anyway, thanks for this information.

[TahoeM3]

Originally Posted by jharms

Thanks to all for this information. I'm going to print out this thread and bring it to my service advisor. I sure hope that it fixes our problem! I'm a little concerned that this will not be the answer to our prayers, however. I have not noticed situations 2-5. Situation 1 surely could describe our problem (Jolts and jerks when pulling away during a 1-2 upshift.). Actually, now that I typed this I'm not sure that this is our problem. I don't think that my problem is in shifting from 1 to 2 but simply controlling the throttle at the start in 1st. A light touch on the accelerator intermittently yields a "jack rabbit" start.

I now suspect that the dealer may have been trying to resolve the problem with this course of action when our problem may be unrelated.

Anyway, thanks for this information.

In regular mode (D) or sport mode (DS)?

[jharms]

Originally Posted by TahoeM3

In regular mode (D) or sport mode (DS)?

In regular mode (D).

[TahoeM3]

Originally Posted by jharms

In regular mode (D).

That's weird, especially since it does it doesn't start in 1st in D...it starts off in 2nd. The only way to get it to kick down to 1st in D is to stomp on the throttle. Maybe that's your problem, that the throttle is overly sensitive and is kicking down to 1st too easily.

[jharms]

Originally Posted by TahoeM3

That's weird, especially since it does it doesn't start in 1st in D...it starts off in 2nd. The only way to get it to kick down to 1st in D is to stomp on the throttle. Maybe that's your problem, that the throttle is overly sensitive and is kicking down to 1st too easily.

Could be! I'm now thinking throttle position sensor or something like that. Now I really think that the dealer has been chasing down the wrong problem.