Description
Electric central locking actuator for the left rear door for Peugeot 407 vehicles. Door behind the driver.
This replacement electric door lock (central locking actuator) is designed specifically for the left rear door of the Peugeot 407. Ideal for professional mechanics and skilled DIYers, this unit restores reliable central locking operation, eliminates intermittent locking/unlocking faults and is a direct-fit spare for common product codes used in aftermarket and OE supply chains. Keywords: Peugeot 407 door lock, central locking actuator, left rear door lock, electric door latch, replacement actuator.
Technical Information
- Manufacturer: Peugeot (Stellantis)
- Model: Peugeot 407 (left rear door)
- Product Codes: 9686691980
- Other Numbers: 9137K8, 9137Q7
Function and Fitment
The actuator is the electrically driven mechanism that operates the door latch as part of the central locking system. It replaces the internal lock unit in the left rear door (the door located behind the driver) and interfaces with the latch, linkage rods and the vehicle wiring harness. Correct fitment ensures smooth locking/unlocking via remote key, door switches and alarm/immobiliser commands.
Installation Recommendations
- Prepare: Work on a cool, stationary vehicle. For safety, disconnect the negative terminal of the battery before starting electrical work.
- Door Trim Removal: Carefully remove the door card and any vapor barriers to access the lock assembly. Keep fasteners and clips organized for reassembly.
- Disconnect: Unplug the electrical connector and detach the linkage rods from the actuator. Note the rod positions or photograph them to ensure correct reattachment.
- Replace: Remove the retaining screws or rivets securing the actuator, install the new unit, reconnect linkage rods and electrical connector, then test operation before reassembling the door trim.
- Test: Verify locking/unlocking with the key fob, door switches and central locking cycle. Check for smooth travel of the latch and correct alignment of the striker.
- Final Steps: Refit vapor barrier and door card, ensure all clips and screws are secure. Reconnect the battery and perform a final functional check.
Why This Part Commonly Fails
Actuators commonly fail due to a combination of mechanical wear and environmental exposure. Typical causes include:
- Wear Of Internal Motor Or Plastic Gears: Repeated cycles eventually wear the small motor brushes and plastic gear teeth, leading to slipping or loss of drive.
- Water Ingress And Corrosion: Moisture entering the door can corrode electrical contacts or cause internal contamination, impairing motor and switch function.
- Linkage Fatigue Or Bent Rods: Misalignment or damaged rods increase load on the actuator and accelerate wear.
- Electrical Issues: Connector corrosion, damaged wiring or intermittent power supply can mimic actuator failure.
Failures most often occur after many years of service or in vehicles exposed to high humidity, salted roads or frequent wet conditions. Regular inspection of door drainage, connectors and linkage lubrication can extend service life.
If you are replacing a faulty left rear door actuator on a Peugeot 407, follow the installation recommendations above and verify correct operation of the central locking system after fitment to ensure a durable repair.
Order this direct-fit left rear central locking actuator for Peugeot 407 to restore secure, reliable locking and eliminate common door lock faults.
