A friend brought a '97 Z3 roadster by the other day for my opinion. He’s looking to buy it. Everybody seems to know that I’m a car nut, and know just enough to be dangerous. I’d never even sat in a two seater BMW before…
Cute little car with a nearly new top and tires, and supposedly a recent clutch. Peppy 2.8L DOHC I-6. Just over 100K miles.
The only thing I could really fault the car on was a thumping noise coming from somewhere in the drive line. It is only noticeable on starting from a dead stop. It doesn’t seem to matter whether you start out slow and easy, or like a jack rabbit, which it does well. You hear THUMP THUMP THUMP, and can almost feel it under you as you drive. The differential is VERY near both passenger’s backsides. If you start out hard it may be more like THUMP THUMP… THUMP thump THUMP before it quits making noise Of course the car has independent rear suspension. I’m thinking it may be a rear CV joint in need of lubrication. This car did sit for nearly a year recently as it was tied up in an estate. I don’t know if that’s part of it or not, but it might be.
Have any of you experienced this sort of issue?