Description
Siemens acceleration sensor for Peugeot 307 vehicles.
High-Quality Siemens Acceleration Sensor (9648829080 / 5WK42989 / 8216AL) designed for Peugeot 307. This inertial sensor measures vehicle acceleration and provides critical input to stability control and braking systems. Ideal for professional workshops and experienced DIY mechanics who search by part number. The unit replaces faulty acceleration sensors to restore correct ABS/ESP feedback and improve vehicle safety and handling.
Technical Information
- Manufacturer: Siemens
- Model: Peugeot 307
- Product Codes: 9648829080, 5WK42989, 8216AL
- Additional Numbers: NFP
Compatibility
Fits Peugeot 307 models. Common body types include Hatchback, SW (estate) and CC (coupé-cabriolet). Always check the part number when searching to ensure direct fitment.
Function
The acceleration sensor (accelerometer/inertial sensor) measures longitudinal and/or lateral acceleration and supplies the ABS/ESP/stability control and related electronic modules with real-time motion data. Accurate readings are essential for traction control, stability interventions and certain passive safety systems.
Replacement And Installation
Replacement is straightforward for a trained technician: locate the sensor (mounted to a rigid point on the vehicle body or central tunnel), remove the electrical connector, undo the fixing bolts and install the new unit in the correct orientation. Ensure the sensor is mounted to the original attachment points with the correct torque and that the connector is fully seated. After fitment, clear stored fault codes and perform a system self-test; some vehicles require initialisation or calibration with a diagnostic tool to restore full functionality.
Installation Recommendations
- Disconnect the battery before beginning work and wait the manufacturer-recommended time to deactivate restraint systems.
- Fit the sensor to the original mounting point and maintain the correct orientation; do not alter the housing or mounting bracket.
- Inspect connector seals and wiring for corrosion or damage; replace any degraded clips or grommets to prevent water ingress.
- Use a diagnostic tool to read and erase fault codes and to perform any required calibration or adaptation of ABS/ESP systems after replacement.
- Perform a road test to verify normal ABS/ESP behavior and to confirm that warning lights are extinguished.
Why This Part Most Commonly Fails
Acceleration sensors generally do not have a scheduled service life, but common failure causes include impact or collision damage, water ingress and corrosion affecting connector contacts, mechanical shock beyond design limits, and internal electronic faults. Symptoms of a failing sensor include persistent ABS/ESP warning lights, unstable handling interventions, or recorded fault codes for the stability/acceleration sensor.
Search by part number (9648829080 / 5WK42989 / 8216AL) for fastest identification. Suitable For Professionals And Experienced DIY Mechanics Who Require Accurate Replacement Parts And Clear Fitment Data.
