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RecallGazette

Vehicle problems, recalls & safety intelligence

BMW 135I 2007–2013 — technical service bulletin

Bulletin 130409 · NHTSA communication 10150100 · issued Mar 1, 2013

Technical service bulletin
communication type
Fuel System, Gasoline
component
2007–2013
model years
36
vehicle entries

Official summary

The customer may complain that during the cold start in the morning, the engine runs very roughly and the Service Engine Soon lamp is illuminated. Various misfire fault codes (e.g., 29CC, 29D2, 29D1, 29D0, 29C0, 29CF) may be stored in the DME control module. The engine rough running complaint can be reproduced on a cold start in the workshop. During the course of diagnosis, the spark plugs, removed from the misfiring cylinders after the problem was reproduced, are found to be soaked (?wet?) with fuel, while the injector tips are covered with a layer of carbon deposit.

Vehicles covered

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.