Audi 80 Quiz
Brake System

Brake Component Inspection

In this manual: Brake System
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read

Routine Inspection

PROCEDURE

First, perform a full brake application at walking speed.

Even with ABS, the tire marks on the road will show whether the brakes are applying evenly.

Perform the same check with the parking brake.

To check brake performance at higher speeds, you need a straight, level road.

Now brake gently at first, then firmly until the vehicle stops, from a speed of approximately 50 km/h, with the steering wheel released but ready to grasp it immediately.

If the vehicle pulls to one side, either the brakes or the chassis components are faulty. See the troubleshooting list at the end of this chapter for causes.

Try coasting on a slight incline to determine how freely the wheels turn.

After the test drive, check by hand:
Is one wheel hub or brake disc noticeably hotter than the other?
Possible causes include a seized disc brake caliper, dragging rear drum brakes (where fitted), or a faulty wheel hub bearing.

Test yourself

A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.