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.
Trip odometer/odometer
The function of the trip odometers and the odometer is to display the three available odometer modes. The two settings are the total mileage of the car and the mileage since the two trip odometers were last set to zero. These two can be reset individually. The odometer and one of the two trip odometers are always displayed. The central electronic module (4/56) receives a speed signal from the brake control module (ABS) (4/16) which is transmitted on the high speed section of the Control Area Network (CAN). The central electronic module then transmits the signal on to the driver information module (5/1) via the low speed section of the Control Area Network (CAN). The distance traveled is saved every fourth kilometer and the value is stored in the central electronic module (4/56). Press the button briefly to switch between the two trip odometers. Hold the button in longer to reset the trip odometer. There must be a power supply to the driver information module (5/1) before the odometer can be reset.
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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.