Description
Product Overview
The Electric Left Front Door Lock for Citroën C4 Coupe (3DV) is an OEM-compatible central locking unit designed for reliable operation of the driver-side door. Supplied under PSA part numbers 9660700780 and 9135FE, this unit is aimed at professional mechanics and experienced DIYers replacing faulty door locks.
Key Features
- Direct fit for Citroën C4 Coupe (3DV) applications using the specified PSA part numbers.
- Electrically operated central locking mechanism for secure and convenient door locking.
- Compact design with factory-style mounting points for straightforward replacement.
Function And Common Failure Modes
The unit controls locking and unlocking of the left front door via an internal electric actuator and mechanical latch. Typical failure causes include motor wear, broken internal gears, water ingress and corrosion of electrical connectors, or mechanical fatigue from prolonged use. Symptoms include intermittent locking, complete failure to lock/unlock, loud grinding noises or a stuck latch.
Installation Guide
Basic replacement requires removal of the inner door trim to access the mechanism. Recommended steps: disconnect the vehicle battery, remove trim and vapor barrier, disconnect the electrical connector, unbolt the lock module, fit the new unit, reconnect wiring and test operation before reassembling. Use appropriate tools (screwdrivers, Torx/hex drivers, trim tools) and take care around window glass and airbag components. If unsure, consult a repair manual or a professional technician.
Compatibility & Fitment
This lock is intended for Citroën C4 Coupe 3-door models referencing PSA part numbers 9660700780 and 9135FE. It is part of the PSA/Citroën/Peugeot parts family and may be compatible with other vehicles that use the same part numbers. Always verify fitment by cross-referencing the part number and vehicle details before purchase.
Technical Information
- Manufacturer: PSA (Citroën/Peugeot)
- Model: Citroën C4 Coupe 3-Door (C4 3DV)
- Product Codes: 9660700780
- Other Numbers: 9135FE
For mechanics and hands-on enthusiasts this electric door lock offers a practical replacement to restore reliable central locking operation. If you require assistance confirming compatibility, provide your vehicle VIN or existing part number and our team will help verify fitment.







