Thumping in rear center of my car


#1

I took my car (a '93 bmw 325i, 151K miles) to get serviced. I had all fluids changed, and when i drove out, there was a bit of a intermittent thumping sound in the rear center of my car. It doesn’t happen all the time and appears to happen only when I am in 1st gear, when I turn while in 1st gear, or while I am going backwards and turning in 1st gear.

Does anyone know why this might be happening and if it will be expensive?


#2

Did this start immediately after you had it serviced, if so I would take it back to them ASAP? Are you sure they refilled the differential fluid?


#3

Also, have then check the u-joints on the driveshaft. After 151K, they may be worn out.