Description
Siemens Acceleration Sensor For Peugeot 307 First Generation
The Siemens Acceleration Sensor is a direct-fit replacement part designed for the first‑generation Peugeot 307. This sensor provides reliable measurement of vehicle acceleration used by stability control, ABS and other vehicle safety and dynamic systems. Ideal for professional workshops and experienced DIY mechanics, the unit is often looked up by its manufacturer or product codes, making it quick to find in parts catalogues (9648829080, 5WK42989, 8216AL).
Technical Information
- Manufacturer: Siemens
- Model: Peugeot 307 (First Generation)
- Product Codes: 9648829080, 5WK42989, 8216AL
- Additional Numbers: NFP (as referenced by some listings)
Function And Application
The acceleration sensor measures longitudinal and/or lateral acceleration and supplies this data to electronic control units responsible for ABS, ESP/traction control and crash systems. Accurate acceleration input helps these systems make split‑second corrections for vehicle stability, braking and occupant safety.
Replacement And Installation
General replacement steps (for trained technicians):
- Always disconnect the vehicle battery before starting work to avoid short circuits and to protect electronic modules.
- Locate the sensor according to the vehicle’s service manual — on Peugeot 307 models the sensor may be mounted centrally or within the passenger compartment/engine bay depending on the specific system.
- Remove any trim or covers necessary to access the sensor, unplug the electrical connector and remove the mounting fasteners.
- Install the new sensor, tighten fasteners to the manufacturer’s torque specification, reconnect the connector and reassemble trims.
- After replacement clear fault codes and perform any required calibration or adaptation using a suitable diagnostic tool. Some systems require a zero‑point calibration or sensor alignment procedure to restore correct operation.
Installation Recommendations
- Work Should Be Performed By A Qualified Technician Or An Experienced DIY Mechanic Familiar With Vehicle Electronics.
- Use A Diagnostic Tool To Clear Fault Codes And Execute Any Calibration/Initialization Routines Required By The Vehicle.
- Ensure Connector Pins Are Clean And Free Of Corrosion; Use Dielectric Grease If Recommended.
- Follow Manufacturer Torque Specs And Reassembly Procedures To Avoid Sensor Misalignment.
Most Common Cause Of Failure
Acceleration sensors typically fail because of the following reasons:
- Damage From Physical Impact Or Collision — Sensors Can Be Displaced Or Cracked During An Accident.
- Water Ingress Or Corrosion — Moisture And Corrosion At The Connector Or Sensor Body Can Cause Intermittent Faults.
- Electrical Issues — Damaged Wiring, Poor Grounding Or Faulty Connectors Lead To Signal Loss Or Erratic Output.
- Age And Vibration — Over Time Internal Components Can Degrade, Especially In Harsh Operating Conditions.
Notes For Buyers
Search Terms: Siemens Acceleration Sensor, Peugeot 307 Sensor, 9648829080, 5WK42989, 8216AL. This part is intended for first‑generation Peugeot 307 models; verify fitment based on the listed product codes when selecting the correct item for your vehicle.
