Engine - Speed Dependent Vibration

SI B 22 01 09
Engine and Gearbox Suspension

February 2009
Technical Service

SUBJECT
Engine Vibration

MODEL
E85, E86 M Roadster and M Coupe with S54 engine up to 3/08 production

SITUATION
The customer may complain of an engine speed-dependent vibration felt in the vehicle during driving.

CAUSE
Prolonged heat exposure to the right side engine mount bracket, during the engine assembly process, may cause the bolts, which hold the engine bracket to the block, to lose the specified tightening torque.

CORRECTION
Inspect the right side engine mount bracket bolts. If one or more of the engine mount bracket bolts are found to be loose, replace all four engine mount bracket bolts. Refer to Repair Instruction RA 22 11 100 for accessing the bracket and tightening torque.





PARTS INFORMATION

WARRANTY INFORMATION





Covered under the terms of the BMW New Vehicle Limited Warranty





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