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.
All model series
The navigation computer must not be disconnected from the power supply while the LED on the computer remains lit (the LED goes out after approx. 1 minute).
Software Installation:Β
- The navigation software must be loaded with terminal 15 activated and the navigation system ready for operation.
- Make sure there is a stable power supply. If necessary, connect a battery charger to the vehicle.
- The charging operation must not be interrupted (terminal 15 remains activated).
- The software is loaded when the operating software CD is ejected.
This is absolutely essential as certain functions are disabled for distribution channels.
These functions will only be available again after a Road Map CD has been inserted. The mode preset at the factory is automatically reset when this CD is inserted.
When Replacing Navigation Computer:Β
Carry out programming/coding. Refer to DIAGNOSIS PROGRAMMING/CODING .
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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