Bleeding Brake System With Brake Filler and Bleeder Unit Vas 5234

Bleeding brake system with brake filler and bleeder unit VAS 5234

Special tools, testers and auxiliary items required





^ Brake filler and bleeder unit VAS 5234

Bleeding (normal):
Follow work sequence exactly when bleeding brake system.
- Connect the brake filler and bleeder unit VAS 5234.
- Open bleeder valves in the specified order and bleed brake calipers.
- Right rear brake caliper
- Left rear brake caliper
- Right front brake caliper
- Left front brake caliper

Use suitable bleeder hose. It must fit tightly on bleeder valve so that no air can enter brake system.
- Leave one brake caliper bleeder valve open, with bleeder hose connected, until brake fluid discharges free of air bubbles.

Subsequent bleeding
Afterwards, bleed with the brake filler and bleeder unit connected. A second technician is required:
- Depress brake pedal forcefully and hold.
- Open bleeder valve on brake caliper.
- Press brake pedal down onto stop.
- Close bleeder valve with pedal held down.
- Release brake pedal slowly.

This bleeding sequence must be performed 5 times per brake caliper.
Bleeding sequence:
- Right rear brake caliper
- Left rear brake caliper
- Right front brake caliper
- Left front brake caliper

Vehicles with ABS, ABS/EDL, ABS/EDL with ASR or ABS/EDL with ASR and ESP.
A test drive must be performed for these vehicles after bleeding the brakes. During this, at least one ABS regulation must be performed!