Description
Electric central locking lock for the left rear door of the Peugeot 407. Rear door on the driver’s side.
This direct-fit electric central locking lock/actuator is designed for the left rear (driver’s side rear) door of the Peugeot 407. Supplied with the referenced OEM numbers, it replaces a failed or worn door latch mechanism and restores reliable locking and unlocking via the vehicle’s central locking system. Ideal for professional workshops and experienced DIY mechanics who search by part number (9686691980, 9137K8, 9137Q7) to ensure correct fitment.
Function And Benefits
The unit operates the door latch and integrates electrical actuation with mechanical linkages to the lock striker. It provides secure locking, remote central locking response and manual key operation if applicable. Replacing a faulty lock restores full functionality of the central locking circuit and prevents door misalignment or accidental unlocking.
Compatibility And Fitment
- Peugeot 407 (approx. 2004–2011) – Left Rear Door (Driver’s Side)
- Typically compatible with Saloon, Estate (SW) and Coupe body styles when fitted with the standard central locking system. Verify fitment by matching part numbers.
How To Replace
- Preparation: Park on level ground, switch ignition off and remove the key. For safety, disconnect the negative battery terminal before starting work.
- Remove Interior Door Trim: Carefully remove door card fasteners and clips, then peel back the trim to access the inner door panel. Take care with plastic clips to avoid damage.
- Remove Moisture Shield: Detach or peel back the protective plastic sheet to expose the lock mechanism and linkages.
- Disconnect Electrical Connector and Linkages: Unplug the actuator connector and unhook any rods or cables connected to the lock. Note the positions of clips and rods for reassembly.
- Unbolt Lock Assembly: Remove the retaining screws/bolts securing the lock to the door and withdraw the unit from the door shell.
- Install New Unit: Fit the new lock in position, tighten fasteners to secure the unit, reconnect rods/cables and electrical plug, and refit the moisture shield and door trim.
- Test Operation: Reconnect the battery, verify central locking, remote locking, and manual key operation. Check for smooth locking/unlocking and proper striker engagement.
Technical Information
- Manufacturer: Stellantis / Peugeot
- Model: Peugeot 407
- Product Codes: 9686691980, 9137Q7
- Other Numbers: 9137K8
Installation Recommendations
- Use Appropriate Tools: Trim tools for door cards, Torx/Phillips sockets for fasteners and pliers for clips.
- Handle Connectors Carefully: Avoid pulling on wiring—release locking tabs before unplugging connectors to prevent damage.
- Lubrication: Lightly lubricate mechanical latch points with appropriate grease to reduce wear and noise.
- Alignment: Ensure rods and clips are positioned exactly as removed to prevent binding; test the door several times before final reassembly.
- Electrical Checks: If locking remains intermittent after replacement, check wiring continuity and connector corrosion at the door harness and pin terminals.
Why This Part Most Often Fails
Common causes of failure include mechanical wear of plastic gears or levers inside the actuator, water ingress and corrosion of linkages or connectors, broken or fatigued rods/clips, and failure of the small electric motor or gearbox within the unit. Symptoms include inability to lock/unlock the affected door, intermittent central locking function, unusual noises from the door when operating locks, or the door staying ajar despite appearing closed.
Order by the referenced part numbers (9686691980 / 9137Q7 / 9137K8) to ensure the correct replacement for the left rear door of the Peugeot 407. Designed for straightforward replacement by trained technicians and capable DIY mechanics familiar with door trim removal and basic electrical checks.
