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.
12 14 610 Removing/replacing right knock sensors (N63, S63)
Necessary preliminary tasks:
- Read out fault memory of DME control unit.
- Turn off ignition.
- Disconnect BATTERY NEGATIVE LEAD .
- Remove RIGHT INTAKE MANIFOLD .
Picture shows the left side, the procedure for the right side is identical.
Unlock and disconnect plugs (1) on both knock sensors.
Release screws on both knock sensors (2).
Tightening torque 13 62 5AZ .
Remove knock sensors (3).
Installation:
Clean support face of knock sensors on engine block.
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.