Brake System, Bleeding using Brake Charger/Bleeder Tool (VAS 5234)

Brake System, Bleeding using Brake Charger/Bleeder Tool (VAS 5234)

Special tools, testers and auxiliary items required

• Brake Charger/Bleeder Unit (VAS 5234)

• Tool Set for Brake Bleeding (VAS 6564)

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

Bleeding

• Adhere strictly to work sequence when bleeding brake system.

• There are 2 bleeder valves installed on Brembo brake calipers Always bleed at both bleeder valves.

• Bleed at outer bleeder valve first.

- Connect (VAS 5234).

- Open bleeder valves in the prescribed sequence and bleed brake caliper.

1- Front left brake caliper

2 - Right front brake caliper

3 - Right rear brake caliper

4 - Left rear brake caliper

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

- With bleeder bottle hose attached, leave bleeder valves open long enough that brake fluid exits without bubbles.

Post-Bleeding

Perform a post-bleeding when:

• The brake pedal travel is too long, or the so-called soft brake pedal.

• One chamber in the brake fluid reservoir is completely empty on a vehicle with EDL, EDL/ASR or EDL/ASR/ESP This will happen if there are leaks in the brake system.

A second technician is required during the post-bleeding:

- Depress brake pedal forcefully and hold.

- Open bleeder valve at brake caliper.

- Press brake pedal down onto stop.

- Close bleeder valve with pedal depressed.

- Release brake pedal slowly.

• This bleeding procedure must be performed 5 times per brake caliper.

Bleeding sequence:

1- Front left brake caliper

2 - Right front brake caliper

3 - Right rear brake caliper

4 - Left rear brake caliper

• A road test must be performed after bleeding. During this, at least one ABS regulation must be performed!