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.
Button Function
The principle of the test lies in visual feedback to the pressing of a button. The menu buttons, selection buttons, the search rocker button and the AUDIO on/off button are tested. The number of the button pressed is displayed in the main display as a reaction. When calling up the test, the menu line is erased and the character "_" is displayed in the main line.
Exiting back to the test menu takes place by means of the time out of 5 seconds after the last button actuation or ignition off.
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.