BMW X3 Service & Repair Manual: Replacing vacuum hose for brake booster (diesel fuel)

Necessary preliminary tasks:

• Read and comply with GENERAL INFORMATION.
• Remove left TRAILING LINK .
• REMOVE left partition wall for units compartment.

IMPORTANT: Before beginning repair work, fully press the brake pedal several times to reduce the vacuum pressure in the brake servo.

Pull non-return valve (1) in direction of arrow out of brake booster.

Installation note: Check seal in brake booster and replace if necessary.

Disconnect snap fastener (1) and feed out vacuum line (2).

Installation note: Make sure that snap fastener (1) is correctly engaged.