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.
71 60 100 Removing and installing/replacing control unit for trailer coupling release
Necessary preliminary tasks:
- Open luggage compartment floor trim panel
Release clips (1) and fold up storage shelf (2).
Unfasten plug connection (1) and disconnect.
Release retaining lug (2).
Pull out control unit for trailer coupling release (3) towards the top in direction of arrow.
Installation note:
Make sure control unit for trailer coupling release (3) if fitted correctly.
Replacement:
Perform an initialization in the procedure or manual initialization via the button in the luggage compartment. The manual initialization is described in the procedure.
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.