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.
13 62 560 Removing and installing/replacing air-mass flow sensor (M54)
Turn off ignition.
Unlock retainers (1) on intake filter housing.
Unlock plug (2) and detach from air-mass flow sensor.
Release hose clip (3).
Detach intake hose (4) from air-mass flow sensor.
Remove air-mass flow sensor.
Installation:
Check seal (1) between air-mass flow sensor and intake filter housing for damage; replace if damaged.
To facilitate joint between air cleaner and throttle assembly, coat gasket with acid-free grease.
Installation:
Only reinstall mass air flow sensor with undamaged lattice frame.
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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.