Buy OEM 1991 Audi Part # 8J0511353F (8J0-511-353-F). Coil Spring Damper. TT; 2.0L. TT; 2.0L; w/Sport Suspension. TT; 2.0L; w/Sport Suspension; w/o TTS Model. TT; 2.5L; w/Sport Suspension. TT

Spring. Bumper.
A component (mounted in the center of the Spring) which cushions the Spring as it is compressed. Buffer. Coil Damper. Stopper.

Coil Spring Damper

Fits TT, TT RS, TTS

TT; 2.0L. TT; 2.0L; w/Sport Suspension. TT; 2.0L; w/Sport Suspension; w/o TTS Model. TT; 2.5L; w/Sport Suspension. TT; 3.2L; w/Sport Suspension. W/AWD, w/o ride control suspension, w/sport suspension. W/O AWD, w/o ride control suspension, w/o ride control suspension.
Suspension Coil Spring - Repair or Replace
Your coil springs are not especially prone to failure, but if they have been cut, clamped, or heated to have the vehicle lowered, your 1991 Audi might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local Audi service department to have your suspension system evaluated.