Engine Controls - MIL ON/Multiple DTCs

SI B 12 26 07
Engine Electrical Systems

January 2008
Technical Service

This Service Information bulletin supersedes SI B12 26 07 dated December 2007.

[NEW] designates changes to this revision

SUBJECT:
BMW ALPINA B7: The Service Engine Soon Light is On

MODELS:
BMW ALPINA B7 produced up to 8/07

SITUATION

The Service Engine Soon light may be on, or any of the following faults are stored in the DME:

^ 2A1A - Tank-venting system, function

^ 273E - Exhaust-gas temperature sensor before catalytic converter - implausible (Bank 1)

^ 273F - Exhaust-gas temperature sensor before catalytic converter - implausible (Bank 2)

^ 29EF - Fuel mixture adaptation, sum check fault - max. fault additive

^ 29F0 - Fuel mixture adaptation, sum check fault - max. fault additive

^ 29E7 - Fuel mixture adaptation, idling, System too lean, additive too high (Bank 1)

^ 29E8 - Fuel mixture adaptation, idling, System too lean, additive too high (Bank 2)

CAUSE

DME software calibration error

[NEW] CORRECTION

The DME software correction was also included in the Voluntary Emissions Recall 07E-A04: BMW ALPINA B7- Reprogram Vehicle (DME) SI B12 14 07, introduced with integration level E065-07-09-515.

In the event that any of these faults are stored and the vehicle is already at current integration level (vehicle data status) E065-07-09-515 or higher, further programming will not correct the problem.

Troubleshoot by completing all of the recommended diagnostic test plans using the latest version DIS DVD.

WARRANTY INFORMATION

Information only





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