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 MANUALSBMW2011335IS 2D COUPE, AUTOMATIC DCTREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE - REPAIR - E92EMISSION CONTROL, OXYGEN SENSOR11 78 513 REPLACING BOTH OXYGEN CONTROL SENSORS (N54, N54T)
2011 BMW 335is 2D Coupe, Automatic DCT
11 78 513 Replacing both oxygen control sensors (N54, N54T)
2011 BMW 335is 2D Coupe, Automatic DCTSECTION 11 78 513 Replacing both oxygen control sensors (N54, N54T)
Special tools required:
WARNING:
Risk of burning!
Work should only be carried out on an exhaust system that has cooled down.
Work should only be carried out on an exhaust system that has cooled down.
Necessary preliminary tasks
- Remove IGNITION COIL COVER .
- Remove MICROFILTER HOUSING .
- Remove front underbody protection (not M3).
Release EAR CLIP (1).
Pull off gaiter (2) from the track rod (3).
RENDER: 1.0x
NO RELATED
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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.