Vehicle braking system Audi A6 C5

General information
The brake system consists of a master cylinder, a vacuum brake booster, and disc brakes on the front and rear wheels. The vehicle is equipped with a...

Replacing the front brake pads
Removal Mark the position of the front wheels in relation to the hubs with paint. This is necessary for reinstalling the wheels in their original position,...

Replacing rear brake pads
Removal Caution: If brake pads are to be reinstalled, they must be marked before removal. Always replace all pads on one axle of the vehicle, even if only one...

Checking the thickness of the brake disc
Use paint to mark the position of the wheel relative to the hub. This is necessary to reinstall the wheel in its original position, which maintains its...

Brake disc
Removal Use paint to mark the position of the wheel relative to the hub. This is necessary to reinstall the wheel in its original position, which maintains its...

Brake fluid
When handling brake fluid, please keep the following in mind: Brake fluid is poisonous. It should never be sucked out by mouth through a hose. Store brake...

Bleeding the hydraulic brake system
Bleeding the hydraulic brake system is necessary to remove air, which significantly reduces braking efficiency. Air can enter the hydraulic system due to...

Brake hoses
Brake lines connect the master cylinder with the four wheel brake calipers. Attention. Fixed brake lines made of metal must be installed at a service station,...

Brake light switch
Removal Remove the carpet in the driver's footwell. Disconnect the electrical connector from the brake light switch (see fig. 11.17). Loosen the lock nut and...

Checking the brake booster
The brake booster reduces the force applied to the brake pedal, thereby making it easier to control the car. The principle of the brake booster is based on the...

Parking brake lever
Removal Remove the rear center console trim. Unscrew the two nuts securing the base of the parking brake lever 1 (fig. 11.18). Using a screwdriver blade, pry...

Adjusting the parking brake
Caution: Due to the automatic adjustment of the rear brakes, the parking brake does not usually need to be adjusted. However, when replacing the handbrake...

Parking brake cable
Front wheel drive cars Removal Attention. The description applies to front-wheel drive vehicles. Due to the different design of the rear suspension, the...

Brake fault diagnostics

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A6(C5 AR, 1999-2005)

A6(C5, 1997-2004)

A6(C4, 1994-1997)