Brake vacuum booster tube AUDI A4 2010

OEM: 8K0611931BH

Disassembled car photo

Engine running

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Details for this exact part

Code
8K0611931BH
OEM
8K0611931BH
Condition
Used
Availability
1 in stock - ready to ship
Make, model
AUDI A4 2008-2012
Year
2010
Engine
Diesel 2.0 105KW CAGA
VIN
WAUZZZ8K4AA135627

What is this part and why does it matter?

The brake vacuum booster hose delivers vacuum specifically to the brake booster, the component that multiplies the driver’s pedal force.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Hissing noise from under the bonnet, often near the brake pedal area
  • Increased brake pedal effort
  • Brake pedal feeling firmer than usual when the engine is running

Installation information

Push-fits onto the booster and vacuum source — check the check valve (if fitted) is oriented correctly.

Frequently asked questions

It’s the dedicated supply line to the brake booster — any leak here directly reduces the vacuum available to assist braking, unlike a leak elsewhere in the general vacuum system.

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