Vehicle braking system Audi 100 C3, diesel
Brake system specifications
System type - Dual-circuit diagonal, with vacuum booster, hydraulic with pressure regulator in the rear hydraulic line and handbrake controlled by cable. Some...
System type - Dual-circuit diagonal, with vacuum booster, hydraulic with pressure regulator in the rear hydraulic line and handbrake controlled by cable. Some...
General description
The braking system has a hydraulic booster, a dual-diagonal hydraulic circuit with disc brakes on the front and drum or disc brakes on the rear wheels,...
The braking system has a hydraulic booster, a dual-diagonal hydraulic circuit with disc brakes on the front and drum or disc brakes on the rear wheels,...
Maintenance and inspection
1. At intervals given in Section " Maintenance " at the beginning of this Manual, perform the following work on the brake system components. 2. Check the brake...
1. At intervals given in Section " Maintenance " at the beginning of this Manual, perform the following work on the brake system components. 2. Check the brake...
Front Brake Disc Pads — Checking and Replacing
1. Jack up the car. Remove both front wheels. 2. Check the brake pad thickness by looking through the slot in front of the caliper body. If the shim thickness...
1. Jack up the car. Remove both front wheels. 2. Check the brake pad thickness by looking through the slot in front of the caliper body. If the shim thickness...
Front Disc Support — Removal and Installation
Note: On models equipped with anti-lock brakes, refer to Chapter 28 before starting work. 1. Jack up the front of the car. Remove the corresponding front...
Note: On models equipped with anti-lock brakes, refer to Chapter 28 before starting work. 1. Jack up the front of the car. Remove the corresponding front...
Front Disc Support — Overhaul
1. Remove the caliper as described in Chapter 4 , clean it from the outside. 2. Using a pump or compressor, remove the piston from the cylinder, but place a...
1. Remove the caliper as described in Chapter 4 , clean it from the outside. 2. Using a pump or compressor, remove the piston from the cylinder, but place a...
Front brake disc — removal and installation
1. Jack up the front of the car and support it on axle stands. Remove the corresponding front wheel. 2. Rotate the disc and examine its surface condition....
1. Jack up the front of the car and support it on axle stands. Remove the corresponding front wheel. 2. Rotate the disc and examine its surface condition....
Rear Brake Pads — Checking and Removing
1. The thickness of the rear drum brake linings can be checked without removing the brake drums. Remove the rubber plug located above the handbrake cable entry...
1. The thickness of the rear drum brake linings can be checked without removing the brake drums. Remove the rubber plug located above the handbrake cable entry...
Rear wheel cylinder — removal, overhaul and installation
1. Remove the brake pads as described in Chapter 7 . 2. Remove the filler cap of the master cylinder reservoir, fill the reservoir completely. Clamp the...
1. Remove the brake pads as described in Chapter 7 . 2. Remove the filler cap of the master cylinder reservoir, fill the reservoir completely. Clamp the...
Brake drum — inspection and replacement
1. Whenever the brake drums are removed, inspect them for damage. Light scuffing of the friction surface is acceptable, but if it is excessive or if the inside...
1. Whenever the brake drums are removed, inspect them for damage. Light scuffing of the friction surface is acceptable, but if it is excessive or if the inside...
Rear Brake Disc Pads — Checking and Replacing
1. Jack up the rear of the car. Remove both rear wheels. 2. Check the brake pad thickness by looking through the slot in the caliper housing. If the shim...
1. Jack up the rear of the car. Remove both rear wheels. 2. Check the brake pad thickness by looking through the slot in the caliper housing. If the shim...
Rear Disc Support — Removal and Installation
Note: On models equipped with anti-lock brakes, refer to Chapter 28 before starting work. 1. Jack up the rear of the car. Remove the rear wheel. 2. Remove the...
Note: On models equipped with anti-lock brakes, refer to Chapter 28 before starting work. 1. Jack up the rear of the car. Remove the rear wheel. 2. Remove the...
Rear Disc Support — Overhaul
1. Remove the caliper as described in Chapter 11 , clean it from the outside. Girling support 2. Unscrew the piston from the cylinder, remove the piston dust...
1. Remove the caliper as described in Chapter 11 , clean it from the outside. Girling support 2. Unscrew the piston from the cylinder, remove the piston dust...
Rear brake disc — removal and installation
1. Jack up the rear of the vehicle and support it on axle stands. Remove the corresponding rear wheel. 2. Rotate the disc and examine its surface condition....
1. Jack up the rear of the vehicle and support it on axle stands. Remove the corresponding rear wheel. 2. Rotate the disc and examine its surface condition....
Master Cylinder — Removal and Installation
Note: The master cylinder is a unit in a non-separable housing and is not subject to repair. In case of failure of the master cylinder, the unit must be...
Note: The master cylinder is a unit in a non-separable housing and is not subject to repair. In case of failure of the master cylinder, the unit must be...
Pressure regulator — testing and adjustment
Note: On models equipped with ABS, refer to Chapter 28 before starting work. 1. The brake pressure regulator is located on the left side of the rear axle and...
Note: On models equipped with ABS, refer to Chapter 28 before starting work. 1. The brake pressure regulator is located on the left side of the rear axle and...
Brake pipes and hoses — removal and installation
Note: On models equipped with anti-lock brake system, refer to Chapter 28 before continuing. 1. Before removing the brake line or hose, unscrew the filler cap...
Note: On models equipped with anti-lock brake system, refer to Chapter 28 before continuing. 1. Before removing the brake line or hose, unscrew the filler cap...
Hydraulic system — bleeding
Note: On models equipped with anti-lock brakes, refer to Chapter 28 before starting work 1. Correct functioning of the brake hydraulic system is possible only...
Note: On models equipped with anti-lock brakes, refer to Chapter 28 before starting work 1. Correct functioning of the brake hydraulic system is possible only...
Brake pedal — removal and installation
The clutch and brake pedals share a common suspension assembly and pivot shaft. Removal and installation procedures for both pedals are given in Section 5 .
The clutch and brake pedals share a common suspension assembly and pivot shaft. Removal and installation procedures for both pedals are given in Section 5 .
Handbrake — adjustment
1. Due to the self-adjusting action of the rear brakes, handbrake adjustment is only necessary after replacing the brake pads, or after removing and installing...
1. Due to the self-adjusting action of the rear brakes, handbrake adjustment is only necessary after replacing the brake pads, or after removing and installing...
Handbrake lever — removal and installation
1. Block the front wheels, jack up the rear of the car and support it on axle stands. Release the handbrake. 2. From under the car, unscrew the handbrake cable...
1. Block the front wheels, jack up the rear of the car and support it on axle stands. Release the handbrake. 2. From under the car, unscrew the handbrake cable...
Handbrake cable — removal and installation
1. Block the front wheels, jack up the rear of the car and support it on axle stands. Remove the corresponding rear wheel, then fully release the handbrake. 2....
1. Block the front wheels, jack up the rear of the car and support it on axle stands. Remove the corresponding rear wheel, then fully release the handbrake. 2....
Vacuum servo drive — description and testing
1. The vacuum servo is located between the brake pedal and the master cylinder and makes it easier for the driver to press the brake pedal. The unit operates...
1. The vacuum servo is located between the brake pedal and the master cylinder and makes it easier for the driver to press the brake pedal. The unit operates...
Vacuum servo — removal and installation
1. Remove the master cylinder as described in Chapter 14 . 2. Remove some trim from the interior to gain access to the pedal connections. 3. Disconnect the...
1. Remove the master cylinder as described in Chapter 14 . 2. Remove some trim from the interior to gain access to the pedal connections. 3. Disconnect the...
Hydraulic booster unit — description and testing
1. On models equipped with power steering, a hydraulic servo motor unit is used to facilitate the operation of the brake pedal. The servo motor is located...
1. On models equipped with power steering, a hydraulic servo motor unit is used to facilitate the operation of the brake pedal. The servo motor is located...
Hydraulic booster unit — removal and installation
1. With the engine off, press the brake pedal about 20 times to release residual pressure in the system. 2. Remove the master cylinder as described in Chapter...
1. With the engine off, press the brake pedal about 20 times to release residual pressure in the system. 2. Remove the master cylinder as described in Chapter...
Pressure accumulator — removal and installation
1. With the engine off, press the brake pedal about 20 times to release residual pressure in the system. 2. Wipe the area around the discharge pipe connection...
1. With the engine off, press the brake pedal about 20 times to release residual pressure in the system. 2. Wipe the area around the discharge pipe connection...
Anti-lock braking system (ABS) — general description
Some models covered in this manual are equipped with an anti-lock braking system (ABS) as standard or as optional equipment. The system is used in conjunction...
Some models covered in this manual are equipped with an anti-lock braking system (ABS) as standard or as optional equipment. The system is used in conjunction...
ABS — precautions
Due to the complex nature of the anti-lock braking system, the following precautions must be observed when performing service and repair work on vehicles...
Due to the complex nature of the anti-lock braking system, the following precautions must be observed when performing service and repair work on vehicles...
ABS Components — Removal and Installation
Note: Before starting work, see. Chapter 28 . Hydraulic modulator 1. Disconnect the battery ground clamp. 2. Remove the modulator control relay by unscrewing...
Note: Before starting work, see. Chapter 28 . Hydraulic modulator 1. Disconnect the battery ground clamp. 2. Remove the modulator control relay by unscrewing...
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