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.
Functional description
Accelerator pedal position is monitored separately by 2 individual sensors. Two sensors are employed to provide redundancy, implement the monitoring function and facilitate recognition of malfunctions.
The sensors register accelerator-pedal travel as angular deflection, with data being transmitted directly to the engine-management control unit as analogue linear voltage curves for pedal angle (°). Overall pedal travel is mechanically expressed as 16° ±0.5°.
Each change in accelerator-pedal position is transmitted to the engine-management control unit with a maximum lag of 50 milliseconds. Sensor signals are transmitted in analogue form. The engine-management control unit monitors the two input signals from the sensors and compares them for plausibility (factors such as mutual synchronicity, linearity, etc.).
| Index | Explanation |
|---|---|
| 1 | Accelerator pedal |
| 2 | WOT travel stop |
| 3 | six-pin plug connection |
Spring elements retract the accelerator pedal to its initial position when it is released.
NO RELATED
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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.