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 Level (Gasoline/Diesel)
The fuel level is gauged with the fuel level sensor (7/130). The sensor sends a signal to the central electronic module (CEM) (4/56).
Vehicles without AWD have a sensor located on the pump side in the fuel tank. Vehicles with AWD have two sensors located on opposite sides of the fuel tank. Two sends are used to ensure the correct fuel quantity is indicated regardless of the inclination of the vehicle. The central electronic module (CEM) calculates the amount of fuel remaining by comparing the signal with a tank table. Information on fuel quantity is sent via the CAN network to the driver information module (DIM) (5/1), where fuel level is indicated via the fuel gauge.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.