Description
Siemens Acceleration Sensor For Peugeot 307 First Generation.
Used Siemens acceleration sensor designed for Peugeot 307 (first generation). This part is referenced under codes 9635739780, 5WK42989 and 8216AL and is commonly used in the vehicle safety (airbag/deceleration) system. Suitable For Automechanics And Do-It-Yourself Enthusiasts Who Need A Reliable Replacement Sensor To Restore Proper Crash Detection And Airbag Functionality.
Technical Information
- Manufacturer: Siemens
- Model: Peugeot 307 (First Generation)
- Product Codes: 9635739780, 5WK42989
- Additional Numbers: 8216AL, NFP
Function
The Acceleration Sensor Measures Sudden Deceleration And Impact Forces To Trigger Airbag Deployment And Seatbelt Pretensioners When Necessary. It Converts Mechanical Acceleration Into An Electrical Signal That The Airbag Control Module Uses To Decide Deployment Timing And Intensity. Correct Sensor Operation Is Crucial For Occupant Safety.
Fitment And Compatibility
Fits Peugeot 307 First Generation Vehicles (Typical Production Years 2001–2008). Compatibility Is Usually Determined By The Sensor Part Number And Vehicle Equipment Level. Verify That The Listed Product Codes Match The Unit Being Replaced.
Replacement Procedure
Replacing The Acceleration Sensor Should Be Performed Carefully Due To The Connection With The Airbag System. Typical Steps Include:
- Disconnect The Battery And Wait The Manufacturer-Specified Time To Prevent Accidental Airbag Deployment.
- Locate The Sensor According To The Workshop Manual (Position Varies By Model And Equipment).
- Remove Trim Or Mounting Hardware To Access The Sensor, Unplug The Electrical Connector Carefully.
- Install The Replacement Sensor Using Correct Fasteners And Torque Values Specified By The Manufacturer.
- Reconnect Battery, Perform Airbag System Diagnostic, Clear Fault Codes And Verify Proper Operation With A Diagnostic Tool.
Installation Recommendations
- Always Disconnect The Battery Before Working On Any Airbag-Related Component And Observe Recommended Waiting Times.
- Use The Vehicle Manufacturer’s Repair Manual For Sensor Location, Mounting Torque And Removal/Installation Sequence.
- Avoid Dropping Or Striking The Sensor, And Do Not Expose The Connector To Corrosive Contaminants.
- After Installation, Run A Full Airbag System Check With A Diagnostic Tool And Clear Any Stored Fault Codes.
- If You Are Unsure, Have The Replacement Performed Or Verified By A Qualified Technician With Appropriate Diagnostic Equipment.
Most Common Reasons For Failure
- Impact Damage From A Collision Causing Internal Component Failure.
- Corrosion Or Water Ingress Affecting Connectors And Electrical Contacts.
- Electrical Shorts Or Wiring Damage Resulting In Erratic Signals Or Fault Codes.
- Mechanical Stress From Improper Mounting Or Previous Repairs.
Why Choose This Part
Original Siemens Designation Ensures Precise Measurement Characteristics Required By The Airbag System. Using The Correct Part Number Minimizes Risk Of Fault Codes And Restores Safety-System Reliability. Ideal For Professional Workshops And Experienced DIYers Replacing Faulty Or Damaged Acceleration Sensors On Peugeot 307 First Generation Vehicles.
