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 12 101 Replacing Cylinder Head Gasket (N55)
2011 BMW 535xi GTSECTION 11 12 101 Replacing Cylinder Head Gasket (N55)
Special Tools Required:
IMPORTANT:
Aluminum Screws/Bolts Must Be Replaced Each Time They Are Released
.
Aluminum Screws/Bolts Are Permitted with and Without Color Coding (Blue).
for Reliable Identification:
Aluminum Screws/Bolts Are Not Magnetic .
Joining Torque and Angle of Rotation Must Be Observed Without Fail (Risk of Damage) .
Aluminum Screws/Bolts Are Permitted with and Without Color Coding (Blue).
for Reliable Identification:
Aluminum Screws/Bolts Are Not Magnetic .
Joining Torque and Angle of Rotation Must Be Observed Without Fail (Risk of Damage) .
Necessary Preliminary Tasks:
- Remove CYLINDER HEAD .
- Check Cylinder Head for DEVIATION FROM FLATNESS .
- Check Cylinder Head for WATERTIGHTNESS .
Remove Cylinder Head Gasket.
Insert Special Tool 11 4 430 Into Feed Pipe of Oil Pump.
Remove Remnants of Oil and Dirt From Blind Holes (1).
IMPORTANT:
Work On Sealing Surface On Engine Block and On Cylinder Head with Special Tool 11 4 470
Only.
Do Not Use Any Metal-Cutting Tools.
Do Not Use Any Metal-Cutting Tools.
RENDER: 1.0x
NO RELATED
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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.