Hydraulic System, Pre-Bleeding: Pre-Bleeding

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Adhere strictly to work sequence when bleeding brake system.

The bleeding of brake system using the Brake Charger/Bleeder Unit VAS5234 is described.

There must be a positive pressure of 2 bar to bleed the hydraulic unit.

See notes. Refer to BRAKE FLUID GENERAL INFORMATION .

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

-- Connect the Brake Charger/Bleeder Unit VAS5234 with the Brake Charger/Bleeder Unit Adapter 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 Brake Charger/Bleeder Unit VAS5234.

-- Refer to the operating instructions for the Brake Charger/Bleeder Unit 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 Vent Screw Cap

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Use suitable bleeder hose. It must fit tightly on bleeder valve so that no air gets into brake system.

Bleeding sequence:

Bleed Left Front and Right Front Brake Calipers Simultaneously.

Fig 4: Identifying Bleed Valve
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Bleed Left Rear and Right Rear Brake Calipers/Brake Cylinders Simultaneously.

Fig 5: Identifying V.A.G 1869/2
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-- With bleeder bottle hoses attached, leave bleeder valves open long enough that brake fluid exits without bubbles.

-- Afterward, bleed the brake system normally. Refer to HYDRAULIC SYSTEM, STANDARD BLEEDING .