Brake Fluid, Changing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 Volkswagen Jetta, 2009 Volkswagen Jetta, 2009 Volkswagen GLI, 2008 Volkswagen Jetta, and 2008 Volkswagen GLI. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

A new brake fluid had been used since MY 2006.

The new brake fluid can also be used in older vehicles.

New brake fluid can be mixed with previous brake fluid.

WARNING:

Brake fluid must never come into contact with fluids containing mineral oils (oil, gas, cleaning solutions). Oils containing minerals damage seals and sleeves on brake systems.
Brake fluid is poisonous. Do not let brake fluid come in contact with the paintwork.
Brake fluid is hygroscopic, which means that it absorbs moisture from the air. Always store brake fluid in air-tight containers.
Wash off any spilled brake fluid with plenty of water.
Do not reuse used / extracted brake fluid!
Observe waste disposal regulations!

Brake Fluid Specifications

Refer to BRAKE FLUID SPECIFICATIONS

Brake Fluid, Changing

Special tools and workshop equipment required

Brake Charger/Bleeder Unit VAS 5234

Fig 1: Identifying Brake Charger/Bleeder Unit VAS 5234
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Brake Pedal Depressor V.A.G 1869/2

Fig 2: Identifying Brake Pedal Actuator V.A.G 1869/2

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Unscrew brake fluid reservoir cap -1-.

Fig 3: Identifying Brake Fluid Reservoir Cap

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Extract as much brake fluid as possible using intake hose VAS 5234.

Fig 4: Identifying Extraction Of Brake Fluid Using Brake Charger/Bleeding Unit VAS 5234

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

Do not remove the strainer inside the brake fluid reservoir.

WARNING:

Extracted brake fluid must not be re-used!

-- Screw adapter -1- onto brake fluid reservoir.

Fig 5: Identifying Pressure Adapter On Brake Fluid Reservoir

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Observe operating instructions for VAS 5234!

-- Install V.A.G 1869/2 between driver's seat and brake pedal and apply tension.

-- Connect charger hose of VAS 5234 to adapter.

NOTE:

Use a suitable bleed hose. It must seat tightly on bleed screw so that no air can enter brake system.

-- Connect collector bottle bleeder hose -1- to left front bleeder screw, open bleed screw and allow the corresponding quantity to flow out (see table). Close the bleed screw, tightening specification, refer to Removal and Installation .

Fig 6: Identifying Collector Bottle Bleeder Hose Connected To Right Front Bleed Screw

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Repeat work procedure on right side of vehicle at front.

-- Unscrew both wheels at rear axle in order to reach the bleed screws.

-- Pull cover caps off brake caliper bleeder screws

-- Connect collector bottle bleeder hose -1- to left rear bleeder screw.

Fig 7: Identifying Collector Bottle Bleeder Hose Connected To Right Rear Bleed Screw

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Open bleeder screw and let the corresponding amount of brake fluid (see table) flow out. Close the bleed screw, tightening specification, refer to Removal and Installation .

Repeat work procedure on right side of vehicle at rear.

Vehicles with Manual Transmission

-- Remove air filter box. Refer to [For engine(s) BRM] Removal and Installation or AIR FILTER HOUSING OVERVIEW

-- Place bleeder hose on clutch slave cylinder bleeder valve.

-- Open valve and allow about 100 ml of brake fluid to flow out.

-- Close valve and press clutch pedal rapidly 10 to 15 times in succession.

-- Open valve again and allow about 50 ml of brake fluid to flow out.

-- Close valve, remove bleeder hose and press clutch pedal several times.

-- Install air filter box in reverse sequence.

Bleeding Sequence

Sequence Bleed Valves:	Amount of Brake Fluid, Which Must Flow Out of Bleed Valves:
Brake Caliper
Left front	0.25 liter (250 ml)
Right front	0.25 liter (250 ml)
Brake Wheel Cylinder/Brake Caliper
Left rear	0.25 liter (250 ml)
Right rear	0.25 liter (250 ml)
Clutch Slave Cylinder	0.15 liter (150 ml)

Total amount: approximately 1.15 Liters

-- Install cover caps on brake caliper bleeder screws.

-- Move filler lever on VAS 5234 to position "B" (see operating instructions).

-- Remove the filler hose from the adapter.

-- Remove the adapter from the brake fluid reservoir.

-- Check brake fluid level and fill if necessary.

-- Screw in cap -1- for brake fluid reservoir.

Fig 8: Identifying Brake Fluid Reservoir Cap

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove brake pedal depressor.

-- Check pedal pressure and brake pedal free play. Free play: maximum ¹ /₃ of pedal travel