---------- From: owner-quattro@coimbra.ans.net on behalf of Phil Payne >There is a _small_ black box with two wires attached under the rear >seat of many post-1988 cars. It's an accelerometer. Aha - so that's what it is. My seat heater has stopped working too and I really needed it last night. Ho hum - guess I'll just have to drive faster. Jim Haseltine 88 Ur quattro