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.
Safety functions
Disabling remote-control units
Should a remote-control/key unit be lost, it is possible to disable it using the diagnostic interface.
First, the CAS Car Access System will need to read out data from all of the remaining remote-control/key units to determine which unit has been lost. It determines which remote key is missing based on the remote key numbers that are still present. The selected remote control/key unit can be disabled using the "Disable/enable key" diagnostic service.
Should the remote-control/key unit be discovered again at a later date, it can be enabled again using the same process.
Emergency operation
In the event of a failure in the central locking system, the vehicle can be unlocked and locked manually using the emergency key. (lock barrels on door and boot lid/tailgate as well as the locking storage compartment)
NO RELATED
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.