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.
Fuel Gauge
There is sensor in the fuel tank, in some cases two. These transmit signals about the actual fuel level to the central electronic module (CEM) (4/56). The central electronic module (CEM) sends the signals on to the driver information module (DIM) (5/1). The driver information module (DIM) receives the signals, interprets them and displays the actual fuel level in the fuel gauge.
The low fuel level warning lamp lights when the fuel level is low. The warning lamp informs the driver that the fuel level is low.
The warning lamp lights when there are less than 9 liters of gasoline or 7.5 liters diesel, depending on the engine type, in the tank.
The fuel gauge is not sensitive to rapid change. This is to prevent incorrect values being displayed when cornering or driving on slopes for example.
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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.