Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
11 66 000 Removing and installing/replacing vacuum pump (N55) up to March 2012
Special tools required:
Necessary preliminary tasks
- Remove DRIVE BELT .
- Remove TENSIONER for drive belt.
- Remove SEALING COVER for vacuum pump.
- Remove HIGH PRESSURE PUMP .
- Disconnect vacuum line from vacuum pump.
Rotate crankshaft at central bolt.
Turn sprocket wheel until drilled holes and screws of vacuum pump match up.
Screw in special tool 11 8 650 .
Secure special tool 11 0 290 in sprocket and to special tool 11 8 650 .
Release screw (1).
Tightening torque 11 66 2AZ .
Press chain tensioner (1) with chain in direction of arrow.
Install special tool 11 4 120 .
Remove sprocket (2) in direction of arrow.
Release screws (1).
Tightening torque 11 66 1AZ .
Release screws (1).
Secure screws (1) against falling out.
Remove vacuum pump.
Installation note:
Replace seal .
Assemble engine.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.