Description
Electric central locking lock for the left front driver’s door for PEUGEOT 307 vehicles. Driver’s door.
Product Overview
This left front door electric central locking mechanism is designed for the Peugeot 307 driver’s door. It operates the latch and central locking functions, allowing remote and switch-activated locking/unlocking of the door. Commonly looked up by part number 9135Z0, this unit is suitable for technicians and DIY enthusiasts who service Peugeot 307 models and need a direct-fit door lock assembly for the driver side.
Function And Benefits
The door lock assembly integrates the latch, locking actuator and microswitches that signal door closed/locked states to the vehicle body control system. It ensures secure mechanical latching of the door while providing electrical control for central locking and alarm systems. Replacing a worn or faulty unit restores reliable locking, prevents accidental door opening, and resolves intermittent central locking failures.
Compatibility
Intended For: Peugeot 307 — Left Front (Driver’s) Door.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 307
- Product Codes: 9135Z0
- Additional Numbers: NFP
- Position: Left Front (Driver’s Door)
Common Faults And Why The Part Fails
Door lock assemblies fail most often due to mechanical wear and environmental exposure. Typical causes include:
- Corrosion and water ingress that seizes the latch or degrades electrical connectors.
- Worn or broken plastic gears and internal levers inside the actuator mechanism.
- Actuator motor burnout or intermittent electrical contacts and microswitch failures.
- Stress or deformation from impact, misaligned door or faulty hinges causing excessive load on the latch.
Failures usually develop gradually, starting as intermittent locking issues or noisy operation, and progress to complete loss of locking or inability to open/close the door properly.
Replacement Guide And Recommendations
Basic Replacement Steps (overview for experienced technicians and knowledgeable DIYers):
- Remove interior door trim and any protective covers to access the lock assembly. Keep fasteners organized.
- Peel back or remove the moisture barrier carefully to avoid tearing.
- Disconnect the electrical connector(s) and detach linkages or rods from the latch (note orientation for reassembly).
- Unscrew and remove the old lock assembly from the door shell, then install the new unit in the reverse order.
- Reattach linkages, reconnect electrical connector(s), refit moisture barrier and door trim.
- Test central locking, manual lock/unlock, door open/closed switches and mechanical catch before final reassembly.
Recommendations:
- Inspect and, if needed, clean or replace door linkages, clips and rods while the door is open.
- Check and clean electrical connectors; apply dielectric grease to prevent future corrosion.
- Ensure door alignment and hinge condition to avoid premature wear of the new lock.
- Lubricate latch strike and moving parts with a suitable long-life lubricant approved for automotive locks.
Additional Notes For Installers
Work Safely: Disconnect the vehicle battery or ensure ignition is off, and follow the vehicle manufacturer’s repair procedures when removing interior trim and handling electrical connectors. Take care not to damage the moisture barrier to avoid future water ingress. After installation verify all central locking functions, manual operation and door ajar sensor signals to the vehicle.
Why Choose This Part
Choosing the correct door lock assembly by matching the part number (9135Z0) and position (left front) ensures proper fit and restores full central locking function on Peugeot 307 cars. The replacement helps eliminate common symptoms such as intermittent locking, failure to lock/unlock from remote, or doors that do not latch reliably.
