Brake fluid, changing

Special tools and equipment required

Fig 1: VAS 5234 Brake Filler And Bleeder Unit

Courtesy of VOLKSWAGEN UNITED STATES, INC.

VAS 5234 Brake filler and bleeder unit
VAS 5234/1 adapter

Fig 2: Brake Pedal Depressor V.A.G 1869/2

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Brake pedal depressor VAG 1869/2

Use new brake fluid with part number B 000 700 A (corresponds to US standard FMVSS 116 DOT 4)

NOTE:

Part numbers are for reference only! Check with parts department for correct part number.
Only use new brake fluid conforming to US standard FMVSS 116 DOT 4
Genuine VW/Audi brake fluid conforms to this specification.

WARNING:

Brake fluid is poisonous. Do not ingest brake fluid. Wash thoroughly with soap and water if brake fluid comes into contact with skin.
Use only new brake fluid conforming to US Standard FMVSS 116 DOT 4. Genuine VW/Audi brake fluid conforms to this specification.

CAUTION:

Do not let brake fluid come into contact with paintwork.
Brake fluid absorbs moisture from the surrounding air and should always be stored in airtight containers.

Note the following:

WARNING:

When changing the brake fluid with the VAS 5234 Brake filler and bleeder unit, care must be taken that the fill pressure of 1 bar is not exceeded.

For this reason the brake fluid pressure at the VAS 5234 Brake filler and bleeder unit must be adjusted down to 1 bar. See instruction manual for VAS 5234.

Observe instruction manual for VAS 5234!

Fig 3: Brake Fluid Reservoir Cap

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove brake fluid reservoir cap -1-.

Fig 4: Extracting Brake Fluid Using Brake Charger/Bleeding Unit VAS 5234

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Insert suction hose from VAS 5234 to extract as much brake fluid as possible from brake fluid reservoir.
Install VAG 1869/2 brake pedal depressor between driver's seat and brake pedal and apply tension.

WARNING:

Do not reuse used / extracted brake fluid!

Fig 5: VAS 5234/1 Adapter Installed To Brake Fluid Reservoir And Filler Hose From VAS 5234 Connected To VAS 5234/1 Adapter

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install VAS 5234/1 adapter -1- to brake fluid reservoir then connect filler hose -2- from VAS 5234 to VAS 5234/1 adapter.

Vehicles with manual transmission:

Pull cover cap off clutch slave cylinder bleed screw.

Fig 6: Collecting Bottle Bleeder Hose

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Connect collecting bottle bleeder hose -1- to bleeder screw of clutch slave cylinder (arrow), open bleeder screw and allow approximately 0.1 liter (100 ml) to flow out. Close bleeder screw and install cover cap.
Operate clutch pedal several times.

Continued for all vehicles:

Remove all bleeder screws.

Fig 7: Collecting Bottle Bleeder Hose

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connect collecting bottle bleeder hose -1- to rear right bleeder screw, open bleeder screw and allow the appropriate quantity to flow out, then close bleeder screw.
Repeat procedure on rear left bleeder screw.

Fig 8: Collecting Bottle Bleeder Hose

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connect collecting bottle bleeder hose -1- to front right bleeder screw, open bleeder screw and allow the corresponding quantity to flow out (see following chart), then close bleeder screw.
Repeat procedure on front left bleeder screw.
Install cover caps on brake caliper bleeder screws.

Move filler lever on VAS 5234 to position -B- (see operating instructions).
Take filler hose off VAS 5234/1 adapter.
Remove adapter from brake fluid reservoir.
Check brake fluid level and top off if necessary.

Reinstall brake fluid reservoir cover.
Remove brake pedal depressor VAG 1869/2.
Check pedal pressure and brake pedal free play. Free play: max 1/3 of pedal travel.

Sequence: Wheel cylinder, Brake caliper	Brake fluid quantity which must flow out of wheel cylinders or brake calipers:
Rear right	200 ml (6.8 oz.)
Rear left	200 ml (6.8 oz.)
Front right	200 ml (6.8 oz.)
Front left	200 ml (6.8 oz.)
Total amount1)	1000 ml (2.1 quarts)

1)Total quantity: 1000 ml (2.1 quarts) (not including amount extracted from brake fluid reservoir).