Description
Electric lock for left front door for Citroën C4 Picasso and C4 Grand Picasso (first generation).
Electric Left Front Door Lock designed for Citroën C4 Picasso and C4 Grand Picasso (first generation). This direct-fit replacement part is ideal for professional mechanics and experienced DIYers looking to restore reliable central locking and secure door operation. Frequently searched by product code 9135Y0, the unit matches OE specifications for fitment and electrical connection, helping reduce installation time and risk of misfit. Robust construction ensures smooth latch movement and consistent actuator response under normal operating conditions.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 Picasso, C4 Grand Picasso (First Generation)
- Product Codes: 9135Y0
- Additional Numbers: 24087158, 24088158, 24086158
Installation Recommendations
- Disconnect The Battery Before Starting Work To Avoid Short Circuits And Electrical Damage.
- Remove The Interior Door Trim Carefully; Start By Removing Screws, Clips And The Door Handle Trim To Access The Lock Mechanism.
- Support The Window And Detach Any Linkages Or Rods From The Lock Assembly, Noting Their Orientation For Reassembly.
- Unplug The Electrical Connector And Remove Fastening Bolts To Extract The Old Lock. Install The New Unit In Reverse Order, Ensuring Linkages And Fasteners Are Secure.
- In Most Cases This Unit Is A Direct-Fit Replacement And Does Not Require Coding. After Installation, Verify Central Locking Function, Manual Latch Operation And Electric Actuator Response On Both Lock And Unlock Commands.
- Test Door Close And Lock Under Several Cycles To Ensure Proper Latch Engagement And That Door Aligns Correctly.
Why This Part Most Often Fails
- Wear Of Mechanical Components: Repeated Use Gradually Wears Gears, Pawls And Latch Surfaces Leading To Sluggish Or Intermittent Operation.
- Water Ingress And Corrosion: Moisture Entering The Door Can Corrode Metal Parts Or Cause Electrical Contacts To Fail.
- Actuator Motor Failure: The Small Motor Or Gearset Driving The Lock Can Burn Out Or Strip Under Load.
- Broken Or Disconnected Linkages: Plastic Clips And Rods That Connect The Lock To The Handle Or Central Locking System Can Break Or Come Loose.
- Electrical Issues: Damaged Wiring, Corroded Connectors Or Short Circuits Can Prevent The Lock From Receiving Power Or Signals From The Central Locking System.
This door lock is a practical replacement solution to restore reliable locking and door security on first generation Citroën C4 Picasso models. Suitable for workshop replacement, the part reduces downtime when identified by its product code (9135Y0) or the listed cross numbers. Always follow safe working practices and verify correct mechanical and electrical operation after installation.








