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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Audi A6 (1997 release)

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Audi A6
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Audi
A6
General Information
Operation of the vehicle
Maintenance
Engines
Ignition, fuel injection and exhaust of gasoline engines
The power supply system, and preheating the exhaust gases of diesel engines
Lubrication System
Cooling system
Coupling
Transmission
The front wheel drive shafts
Design features four-wheel drive transmission
Suspension
Wheels and tires
Steering
Brakes
Overview
Anti-lock brakes (ABS)
Electronic Stability Program (ESP)
General recommendations for the maintenance and repair of the anti-lock braking systems and electronic stability
Replacing brake pads front brake FN-3
Replacing brake pads front brake HP-2
Replacing the rear brake pads
Repair of forward support FN-3
Repair of forward support HP-2
Repair of a back support
Brake disk
The parking brake cable front-wheel drive
Brake Cable-wheel drive vehicles
Adjusting the parking brake
Bleeding the hydraulic brake drive
Brake fluid (every 2 years)
Body
Heating and air conditioning
Electrical
Electric schemes
 


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Brake fluid (every 2 years)



Brake fluid is hygroscopic (absorbs moisture from the air), so liquid, stored long time in open ware, it is not recommended.
Brake fluid must not come in contact with mineral oils. Even a small amount of mineral oil makes brake fluid unsuitable for use in the braking system.
Use only fresh brake fluid DOT 4.
Replace the brake fluid using a pumping unit VA G 1869. Connect the pumping unit in accordance with the instructions for use of pumping unit VA G 1869.
Open the tank of a hydraulic brake system and fill the brake fluid in order to prevent air from entering the brake system of the tank.
Remove the dust cap from the bleeder right rear brake caliper, clean it and put it on one end of the pure transparent hose which other end lower in the capacity partially filled with brake fluid.
Start the engine and unscrew a few turns the bleeder valve on the brake caliper. Pressing the brake pedal, displaces the brake fluid reservoir as long as the liquid level has dropped to the point of connection of fluid hose to the clutch.
Collect leaking liquid in the container. Tighten the bleeder valve.
Connect the pumping unit in accordance with the instructions for use of pumping unit VA G 1869.
On vehicles with a manual transmission, set the pure transparent hose on the bleeder valve clutch slave cylinder, remove the fitting several turns, and drain about 100 cm3 of brake fluid. Tighten the bleeder valve.
Further actions consistently follow the following calipers:
1 - rear right brake caliper;
2 - rear left brake caliper;
3 - front right brake caliper;
4 - front left brake caliper.
Remove the dust cap from the bleeder support, clean it and put it on the pure transparent hose which other end lower in the capacity partially filled with brake fluid.
Remove a few turns the bleeder valve and drain about 250 cm3 of brake fluid.
The incoming fresh brake fluid washes away the remnants of the old brake fluid in the hydraulic circuit brake system.
Tighten the bleeder valve.
Disconnect the hose from the tank of the brake system.
Check the force applied to the pedal. Free running of the brake pedal should be 1/3 of the pedal stroke.




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