Description
Electric lock for left front door PEUGEOT 407 Driver’s door
The electric left front door lock for the Peugeot 407 is a direct-fit locking unit designed for the driver-side door. It forms part of the central locking system and secures the door while enabling remote and interior unlocking. This replacement lock is commonly searched by OEM reference numbers (for example 9681333380, 9135AY or 9135FN), so technicians and DIYers often find this part by part number when repairing central locking faults on Peugeot 407 vehicles.
Product Overview
This door lock assembly controls mechanical latching and the electrical actuation required for central locking. It interfaces with the door handles, interior release mechanism and the vehicle wiring harness. Ideal for garages and independent mechanics as well as experienced home installers, the unit restores reliable locking and prevents door ajar faults or intermittent locking operation when the original unit has failed.
Technical Information
- Manufacturer: Peugeot (Stellantis)
- Model: Peugeot 407
- Product Codes: 9681333380, Q00
- Other Numbers: 9135AY, 9135FN
- Application: Left Front Door / Driver’s Door
How It Works
The lock contains a small electric actuator and mechanical latch. When a lock/unlock command is received from the central locking module or remote, the actuator moves the latch to allow the door to open or secure it closed. The assembly also communicates the door-closed/sensor status to the vehicle’s body control module so interior lights and warning indicators function correctly.
Common Failure Reasons
Failures typically result from moisture ingress and corrosion, worn internal gears or motor, broken plastic components inside the actuator, or damaged wiring and connectors. Symptoms include intermittent locking/unlocking, inability to lock or unlock the door, or the vehicle reporting a door-open fault when the door is physically closed.
Replacement Interval
There is no fixed service interval; lifetime depends on use and environment. In practice, electrical door locks commonly last many years but often need replacement after prolonged exposure to moisture, frequent heavy use, or following door impacts. Typical service life can range from several years up to a decade or more under normal conditions.
Installation Recommendations
- Disconnect the negative battery terminal before starting to prevent short circuits and unexpected actuator operation.
- Use plastic trim tools to remove the interior door trim and avoid damaging clips and upholstery.
- Take care when detaching linkages: note the original routing and clip positions (photograph if needed) to ensure correct reassembly.
- Disconnect the electrical connector and unbolt the lock unit (usually 2–3 fasteners depending on model year).
- Fit the new lock, reconnect linkages and electrical connector, and test central locking and door handles before refitting the door panel.
- Lightly lubricate moving parts of the latch with appropriate product and check that all fasteners are secure; use correct torque where specified by manufacturer data.
- If electrical faults persist after replacement, inspect wiring harness and connector pins for corrosion or damage.
Why Choose This Part
Choosing the correct OEM-referenced lock ensures proper fit and restores full function of the central locking system. Because many buyers search by part number, this listing includes the common references 9681333380, 9135AY and 9135FN to help you find the exact replacement for the Peugeot 407 driver-side front door.
