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.
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HOMESERVICE MANUALSBMW2011335I 2D CONVERTIBLE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE - REPAIR - E93VALVES WITH SPRINGS11 34 552 REMOVING AND INSTALLING OR REPLACING ALL VALVES (N54, N54T)
2011 BMW 335i 2D Convertible, Automatic
11 34 552 Removing and installing or replacing all valves (N54, N54T)
2011 BMW 335i 2D Convertible, AutomaticSECTION 11 34 552 Removing and installing or replacing all valves (N54, N54T)
Special tools required:
Necessary preliminary tasks
- Remove CYLINDER HEAD .
- Remove INTAKE CAMSHAFT .
- Remove EXHAUST CAMSHAFT .
- Remove ROLLER CAM FOLLOWER .
- Remove VALVE SPRINGS .
- Remove VALVE STEM SEALS .
Arrangement:
- Valve
- Valve stem seal with spring plate, bottom
- Valve spring
- Top plate spring
- Valve keys
If the valves are to be reused, set them down in special tool 11 4 480 in a tidy and orderly fashion.
Assemble engine.
Check function of DME.
RENDER: 1.0x
NO RELATED
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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.