Description
Electric central locking mechanism for the right rear door for Peugeot 307. Rear door on the passenger side.
High-quality replacement electric door lock for the right rear (passenger side) door of the Peugeot 307. Ideal for professional workshops and DIY mechanics who require a reliable central locking actuator that restores proper door locking and latching function. The part is commonly searched by its product code 9138A4, which helps technicians and parts departments find the correct unit quickly. Designed to work with the vehicle’s central locking system, this electric lock operates the latch and secures the door via an integrated actuator and mechanical linkage.
Function and Symptoms
The unit combines a latch mechanism with an electric actuator that engages and disengages the door lock as part of the central locking system. Typical failure symptoms include intermittent locking/unlocking, audible grinding or clicking inside the door, inability to latch the door properly, or the door remaining locked/unlocked despite remote or switch commands. Replacing the lock restores mechanical latching and electric locking functions.
How It Is Replaced
- Park Vehicle On Level Ground And Disconnect Battery Before Starting Work.
- Remove Interior Door Trim Carefully To Avoid Breaking Clips; support Door Glass If Necessary.
- Detach Linkage Rods From The Lock Mechanism And Unplug Electrical Connector.
- Unscrew The Lock Unit From The Door Shell, Remove Old Unit And Fit The New One In Reverse Order.
- Check Operation By Activating Central Locking And By Closing The Door Several Times; Adjust Linkage Or Fasteners If Necessary.
Installation Recommendations
- Use Correct Trim Tools To Prevent Damage To Door Panels And Clips.
- Always Disconnect The Battery Before Unplugging Electrical Connectors.
- Inspect And Lubricate Latch Points And Linkage With Suitable Grease During Installation.
- Make Sure All Linkage Clips Are Intact And Correctly Seated To Avoid Loose Rods Causing Malfunction.
- Test Central Locking Operation And Manual Latch Function Before Reassembling The Door Trim.
Most Common Reasons For Failure
- Water Ingress And Corrosion Causing Electrical Contacts Or Motor Failure.
- Wear Or Breakage Of Plastic Gears Inside The Actuator Due To Age And Heavy Use.
- Broken Or Bent Linkage Rods And Clips Resulting From Door Impacts Or Repeated Force.
- Contaminated Or Dry Latch Mechanism Leading To Excessive Friction And Premature Wear.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 307 — Right Rear Door (Passenger Side)
- Product Codes: 9138A4
- Additional Numbers: 9138A4 NFP
Compatible For Use By Professional Mechanics And Experienced DIY Enthusiasts. When replacing the unit, follow manufacturer procedures for door disassembly and reassembly to ensure correct fitment and safe operation.
