Description
Electric lock for the left front door for PEUGEOT 407. Driver’s door.
High-quality electric left front door lock designed for Peugeot 407 vehicles. This replacement lock restores reliable central locking and secure mechanical latching for the driver’s door. Frequently searched by product codes 9683417880, 9135AY or 9135FN, the unit is suitable for mechanics and DIY enthusiasts who need a direct-fit solution for locks and actuators on the front left door. The part fits into the factory latch location and operates with the vehicle’s existing central locking system and key/remote locking functions.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 407
- Product Codes: 9683417880, 9135AY
- Other Numbers: 9135FN
Function And Features
The electric door lock combines a mechanical latch with an electric actuator to lock and unlock the left front (driver’s) door. It interfaces with the vehicle’s central locking system and responds to door handles, key fob commands and internal locking switches. Typical components include the latch mechanism, actuator motor, gearing and the electrical connector for power and signal.
Replacement And Installation
Basic Replacement Steps: Remove the interior door trim to access the latch assembly, disconnect the electrical connector and any rod linkages, remove mounting fasteners, replace the lock unit, reconnect linkages and electrical connector, then reassemble the door trim. After installation, verify smooth mechanical operation and proper electrical locking/unlocking from switches and remote controls.
Recommended Tools: Trim removal tools, Torx or Phillips drivers (depending on fasteners), pliers, socket set and a multimeter for basic electrical checks. Always follow the vehicle manufacturer’s procedure.
Important: Before starting work, disconnect the vehicle battery and follow the manufacturer’s guidelines to avoid damage to electrical components.
Common Faults And Causes
- Wear And Tear: Mechanical components and plastic gears wear over time, leading to intermittent or failed latching.
- Corrosion And Water Ingress: Moisture can corrode contacts or the actuator motor and degrade moving parts.
- Actuator Motor Failure: The small electric motor inside the unit can fail electrically or mechanically.
- Connector Or Wiring Issues: Damaged pins, broken wires or poor grounds prevent proper operation.
- Linkage Damage Or Misalignment: Rods and clips can bend or disconnect, causing improper locking or inability to latch.
Installation Recommendation
For reliable results, check the door’s alignment and striker condition while replacing the lock. Lubricate moving parts with an appropriate lubricant and ensure the door seals prevent future water ingress. Test all locking functions (manual, switch and remote) after installation. If electrical faults persist, check wiring, fuses and central locking signals.
Why This Part Fails Most Often
The most common reasons for failure are prolonged mechanical wear, plastic gear degradation, and water entering the door cavity which accelerates corrosion and electrical faults. Regular inspection and addressing water leaks or damaged seals can extend service life.
Product codes are often used when searching for the correct replacement part, so please refer to the provided numbers when ordering or comparing parts.
