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.
Fault Symptom Selection
Once the brief test has been completed, use the continue arrow (bottom right) to call up the fault symptom selection screen. The fault symptom selection screen displays all fault memories set for troubleshooting purposes. Service technicians can enter fault symptoms observed by themselves or by the vehicle owner. This is done by selecting the appropriate items in a predefined list of symptoms. Several fault symptoms can be selected simultaneously. Use the transfer key to transfer selected fault symptoms into the display The test schedule is generated on the basis of both the symptoms observed by customers or service technician and the contents of the fault memories.
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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.