Engine Controls - Loss of Power On Deceleration

Service Measure
Engine Electrical

B12 201 05

03/14/2005

This Service Measure supersedes SM B12 208 04 dated 02/01/2005.

Changes to this revision are identified with asterisks.

Subject
N62 Engine (ME9.2.1 and ME9.2.2) Automatic or SMG Transmission Equipped Vehicles Loss Of Power While Decelerating and Turning or Coming To A Stop.

Models
E60 (5 Series) E63 and E64 (6 Series) E65 and E66 (7 Series) produced between 09/03 to 12/04 and equipped with automatic or SMG transmission.

Complaint

Automatic 6HP26 Transmision Equipped Vehicles:

The customer complains the vehicle exhibits a loss of power while decelerating and turning or coming to a stop momentarily affecting steering effort.

SMG GS6-53BZ Transmission Equipped Vehicles:

The customer complains while driving that the transmission switches from the D3 to M2 mode momentarily affecting steering effort while decelerating and turning or coming to stop.

Cause

DME software calibration.

Measure

Automatic 6HP26 Transmision Equipped Vehicles:

On a customer complaint basis only reprogram the vehicle using CIP 15.0 or higher.

* SMG GS6-53BZ Transmission Equipped Vehicles:

When available reprogram the vehicle with CIP 16.1 or higher.*

In all cases document complaints via the PuMA System.