Engine Controls Gas Cap Warning ON/MIL ON

SI B 12 01 09
Engine Electrical Systems

July 2010
Technical Service

This Service Information bulletin supersedes SI B12 01 09 dated March 2010.

[NEW] designates changes to this revision

SUBJECT
Service Engine Soon Lamp or Check Gas Cap Warning Illuminated

MODEL
E60 and E61 (5 Series) with N52K and N54 engine
E71 (X6) with N54 engine
E82 and E88 (1 Series) with N51, N52K and N54 engine
E83 (X3) with N52K engine
E90, E91, E92 and E93 (3 Series) with N51, N52K and N54 engine

Vehicles produced from July 1st, 2006 up to September 30th, 2008

SITUATION
The Service Engine Soon lamp or Check Gas Cap lamps are illuminated while driving. The following faults are stored in the DME memory:

FC 2A15 - DMTL minor leak, leak greater than 1.0 mm

FC 2A16 - DMTL micro leak, leak greater than 0.5 mm

CAUSE
Software error in the DME for the tank leak diagnostic system

PROCEDURE








1. Compare the vehicle I-Level data status to the chart above, based on the model vehicle.

2. Regardless of whether the vehicle has been recently programmed, perform the DMTL Test Plan to ensure that no leaks are present in the evaporation system. If no leaks are found, then the vehicle may be returned to the customer. If a leak is detected, work through the test plan to determine its location. Refer to SI B16 01 07 for troubleshooting procedures, using the VACUTECreg; Smoke Machine 625-522B-BMW.

Note:
Do not replace the gas cap unless a leak is clearly found, using the VACUTECreg; Smoke Machine 625-522B-BMW.








WARRANTY INFORMATION