Description
Side impact sensor (sensor) for PEUGEOT 3008 and 5008 first generation. ABL acceleration sensor.
Product Overview
This Side Impact Sensor (ABL acceleration sensor) is an OEM-compatible component used in the restraint system of first‑generation Peugeot 3008 and 5008 vehicles. It detects lateral acceleration caused by side collisions and sends the signal to the airbag control unit so that the appropriate side‑airbag and seatbelt pretensioner deployment logic can be executed. Ideal for professional workshops and experienced DIYers searching by part number (9663904980, 8216XR).
Function And Application
The sensor measures lateral acceleration and transmits an electrical signal to the airbag control module. Accurate and timely detection of side impacts is critical for correct airbag deployment. This unit is commonly referenced under the OEM numbers shown and is compatible with the original airbag system architecture used on the listed models.
How To Replace
- Park the vehicle on level ground, switch off the ignition and remove the key.
- Disconnect the negative battery terminal and wait at least two minutes to ensure all restraint system capacitors discharge.
- Remove interior trim or panels necessary to access the sensor (follow vehicle service manual for exact locations and procedures).
- Unplug the sensor electrical connector and remove the mounting fasteners.
- Install the replacement sensor, secure mounting fasteners to the manufacturer’s specification and reconnect the electrical connector.
- Reinstall trim, reconnect the battery and clear/reset airbag fault codes with a suitable diagnostic tool.
Installation Recommendations
- Always disconnect the battery before starting work and follow the vehicle manufacturer’s safety procedures.
- Use the correct OEM part numbers and connectors to maintain system integrity.
- After fitting, verify the airbag system using a diagnostic tool and clear any stored faults. If the airbag warning lamp remains on, follow diagnostic fault‑finding procedures rather than attempting further component swaps.
- Handle the sensor and its connector carefully to avoid static discharge and contamination. Do not drop the sensor or expose it to solvents and strong cleaners.
Why The Part Fails Most Often
- Damage From A Previous Collision: Physical impact can deform or damage the sensor or its mounting, rendering it unreliable.
- Water Ingress And Corrosion: Moisture or corrosion at the connector can cause intermittent signals or complete failure.
- Connector Or Wiring Damage: Chafing, broken wires or poor contacts lead to communication faults with the airbag control unit.
- Electrical Failure: Aging or internal electronic faults can occur, although sensors typically remain serviceable for the vehicle’s life unless damaged.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Peugeot 3008 I; Peugeot 5008 I
- Product Codes: 9663904980
- Other Numbers: 8216XR
Practical Notes For Workshops
Technicians should treat side impact sensors as safety‑critical. Use the vehicle’s repair manual for exact sensor location, mounting torque values and connector pinouts. Always confirm proper system operation with a diagnostic scan after replacement and document the repair in the vehicle service record.
