1991 Audi 100 Questions

Get answers to questions about your 1991 Audi 100 at RepairPal. Find solutions, diagnose problems and get back on the road.

Refine by vehicle
Choose your vehicle

It just started happening. the car seems to be running fine. why?

A diagram is needed so I can remove and replace the heater core in a 1991 Audi 100 sedan