Archive & reference hub
MK3 / A70 markets
Manuals, parts, data

Troubleshooting assistant

Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.

Diagnostic codes
Searching in 1990 USDM TSRM.
Areas /Low or spongy pedal
Brake System

Low or spongy pedal

Low or spongy pedal

Possible causes and remedies
Possible cause
Brake pads worn
Remedy
Replace pads
Possible cause
Leak in brake system
Remedy
Repair leak
Possible cause
Master cylinder faulty
Remedy
Repair or replace master cylinder
Possible cause
Air in brake system
Remedy
Bleed brake system
Possible cause
Brake cylinder faulty
Remedy
Repair cylinder
Possible cause
Piston seals worn or damaged
Remedy
Repair brake cylinder