BMW Repair Questions? Ask a Mechanic for Answers ASAP
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there are two common things that cause no reversea bad solenoid, and a bad clutch drum.both are internal transmission failures, which require the transmission be opened for repair. Main dealers do not typically do this work so are usually inclined to recommed gearbox replacement. So, if you are interested in a non-replacement solution, I would suggest you take the vehicle to a gearbox specialist.
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