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Re: M535i Questions (archive)
[ Follow Ups ] [ 5-series (E12) Message Board ] [ Msg. Board FAQ ]
Posted by Peter on January 14, 2001 at 11:56:48:

In Reply to: M535i Questions posted by David on January 13, 2001 at 21:53:25:

David-
The 3.5 motor is a torque monster and a joy to drive--but it also plays hell on the body/monocoque. The most common problem with this car is the rear diff mount area of the body, in back above the differential. It will fatigue and will tear out, causing a thunk in the driveline. Very difficult to fix correctly once it has started due to the nature of the body structure here.
BMW even offered a weld-in fix for this problem--a pair of metal brackets that reinforced this area when placed. Might talk to Carl Nelson about those parts. CNPR 800-466-8184
Put the car up on a lift and examine this area closely. As I said it is very difficult to fix correctly if the condition is advanced. Have not seen one of these cars without this problem.
Peter

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