Hydraulic System, Standard Bleeding

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Brake Charger/Bleeder Unit: VAS5234
Brake Bleeding Tool Set: VAS6564
Brake Charge and Bleed Equipment - Upgrade Kit: VAG1869/4
Brake Bleeding Tool Set - Insert Tool : VAS6564/9

Bleeding

Adhere strictly to the procedure when bleeding the brake system

The bleeding of brake system using the : VAS5234 is described.

There must be a positive pressure of 2 bar (29 psi) to bleed the hydraulic unit

WARNING:

Only use new brake fluid conforming to VW standard (VW 501 14).

Open the Bleeder Valves in the Specified Sequence and Bleed the Brake Calipers:

Left Front Brake Caliper
Right Front Brake Caliper
Left Rear Brake Cylinder/Brake Caliper
Right Rear Brake Cylinder/Brake Caliper

NOTE:

If one chamber of the brake fluid reservoir is completely empty, the brake system must be pre-bled. Refer to HYDRAULIC SYSTEM, PRE-BLEEDING .

See notes. Refer to BRAKE FLUID GENERAL INFORMATION .

-- Fill the brake fluid reservoir up to the max mark.

-- Connect the : VAS5234 with the : VAS5234/1A .

Fig 1: Identifying Screw Adapter

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-- Attach the adapter -1- to the brake fluid reservoir.

-- Set the correct pressure on the : VAS5234 .

-- Refer to the operating instructions for the : VAS5234 .

-- Remove the left and right front caps -1-.

Fig 2: Identifying Bleeder Screw Cap

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-- Remove the left and right rear caps -1-.

Fig 3: Identifying Bleeder Screw Cap (Rear)

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Use a Suitable Bleeder Hose

It Must Fit Tightly on the Bleeder Valve So That No Air Can Get into the Brake System

Fig 4: Identifying Bleed Valve

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-- With the bleeder bottle hose attached, leave the brake caliper/brake cylinder bleeder valve open long enough so that the brake fluid flows out free of bubbles.

Fig 5: Identifying V.A.G 1869/2

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NOTE:

To prevent the brake fluid from overflowing from the reservoir, the level must not be over the MAX mark -1-.

Fig 6: Identifying Brake Fluid Level Marks On Reservoir

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