st8220109
Engine and Gearbox Suspension
Page 1 ofl
February 2009
Technical Service
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Engine Vibration
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E85, E86 M Roadster and M Coupe with S54 engine up to 3/08 production
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The customer may complain of an engine speed-dependent vibration felt in the vehicle during driving.
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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.
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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 RA221l 100
for accessing the bracket and tightening torque.
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