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.
Engine compartment lid contact switch
The engine compartment lid contact switch is included in the calculations of the automatic engine start-stop as an input signal. If the engine compartment lid is open, the engine is not started or stopped by the automatic engine start-stop.
The following graphic shows the engine compartment lid contact switch using the example of F01.
| Item | Explanation |
|---|---|
| 1 | Engine compartment lid catch front left |
| 2 | Engine compartment lid contact switch |
| 3 | two-pin plug connection |
| 4 | Plug connection for pyrotechnic component (scope pedestrian protection) |
Depending on the series and the version, there is the engine compartment lid contact switch with service position. In the service position, the engine compartment lid contact switch simulates a closed engine compartment lid. An automatic engine start can therefore be carried out by the automatic engine start-stop in the service position of the engine compartment lid contact switch.
The following graphic shows a simplified version of a engine compartment lid contact switch with service position. Pull up to engage the service position of the engine compartment lid contact switch.
| Item | Explanation |
|---|---|
| 1 | Engine compartment lid contact switch |
| 2 | Electrical connection |
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.