Description
Electric lock for left front door for Citroën C8 and Peugeot 807. Used part with guarantee of functionality. Driver’s door.
This electric left front door lock (latch and actuator assembly) is a direct-fit replacement for Citroën C8 and Peugeot 807 driver doors. Ideal for professional workshops and experienced DIY mechanics looking to restore reliable central locking and secure door latching. The part is commonly searched by product code 9135L4 — include this number when locating the correct unit.
Function and Benefits
The unit secures the door in the closed position and operates the central locking system and door handle release. It combines the mechanical latch with an electric actuator that receives locking/unlocking commands from the vehicle’s central locking system. Replacing a faulty lock restores door security, prevents rattles, and ensures reliable opening/closing.
Installation Recommendations
Before starting work disconnect the battery to avoid short circuits and unintended central-locking commands. Typical replacement steps: remove inner door trim, disconnect electrical connector and locking rods/linkages, unbolt the old lock, fit the new unit, reconnect linkages and connector, test function before reassembling the door trim. Allow approximately 30–60 minutes for a trained mechanic; times may be longer for less experienced installers. Verify smooth operation of the latch, central locking cycle and key/handle function after installation. Use dielectric grease on electrical connectors and light lubricant on mechanical linkages as needed.
Why This Part Fails
Common causes of failure include moisture ingress and corrosion of electrical contacts, worn or broken plastic gears inside the actuator, seized mechanical linkages, and damage from door impacts or general wear over many cycles. Electrical faults in the actuator motor or intermittent connector contacts also lead to malfunction. Regular inspection of door drains, connector condition and lubrication of moving parts helps prolong service life.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C8, Peugeot 807 (Left Front / Driver’s Door)
- Product Codes: 9135L4
- Other Numbers: Not available
Additional Notes for Mechanics
When replacing the lock, inspect the door wiring harness and connector for corrosion or damage and check the condition of the door latch striker on the body. If the vehicle exhibits intermittent central locking faults, also inspect the door pin switch and wiring continuity between the connector and the ECU. Replace worn or damaged linkages and ensure correct routing of rods to prevent binding.
Part Condition
Used part Supplied With A Functional Guarantee. Suitable For Immediate Installation After Fitment Checks.
