Model family
Audi 4000 CS quattro
Observed 1986–1987 (US EPA) · observed model years, not a production range
- Knocking Noise 87' Audi Coupe GT (4000)
AudiWorld · Bluebelliedjet · 18 Oct 2026
I have recently been hunting a popping sound with no success. I had replaced the tie rods, front shocks, shock tower bushings, ball joints, and the driver side CV joint. Initially I did not detect...