Vacuum brake booster VOLVO V60 2012

OEM: 31329895

Disassembled car photo

Engine running

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What is this part and why does it matter?

The brake vacuum booster multiplies the force the driver applies to the brake pedal, using engine (or pump-generated) vacuum, making braking effort much lighter.

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Not sure about compatibility? Send us your car's VIN and we'll confirm.

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Signs of a faulty part

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

  • Noticeably heavier brake pedal effort
  • Hissing noise when pressing the brake pedal
  • Pedal feels firm immediately, even with the engine running (loss of assist)

Installation information

Requires disconnecting the master cylinder and pedal linkage — always check the pushrod adjustment is correct before finishing installation.

Frequently asked questions

A failed booster (from a vacuum leak, internal diaphragm failure, or check valve fault) removes the power assist, meaning the driver has to provide all the braking force manually — a very noticeable, sudden change.

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