Description
Electric central locking lock for the left rear door for CITROËN C4 5-door vehicles. Driver’s side door.
This electric central locking unit is a direct-fit replacement for the left rear (driver’s side) door of the Citroën C4 5‑door. Designed for workshop technicians and experienced DIYers, the lock restores reliable locking, unlocking and latch engagement for vehicles showing symptoms such as intermittent locking, door not latching, or refusal to unlock with the remote. Ideal for searches by part number (9681336980, 9137Q2, 9137K5) — include these references when ordering to speed up matching.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4 (5‑door) — Left Rear Door (Driver’s Side)
- Product Codes: 9681336980, 9137E0, 9137K5, 9137Q2
- Additional Numbers: 6460SL
Function And Benefits
The unit is the electromechanical lock/actuator that controls central locking operations for the left rear door. It integrates the latch mechanism, electrical actuator and linkage points for the interior and exterior handles. Replacing a worn or defective lock restores correct door latching, improves security and prevents water ingress into the cabin caused by improperly closed doors. The part is suitable for technicians who need a reliable OE‑style replacement and for DIY owners familiar with door trim removal.
Installation Recommendations
Before starting work, always disconnect the vehicle battery to prevent short circuits and unintended airbag or electrical system activation. Typical replacement procedure:
- Remove inner door trim and moisture barrier carefully using suitable trim tools to avoid damage.
- Disconnect the electrical connector from the lock actuator and detach the locking rods/clips from the mechanism, noting rod positions for reassembly.
- Remove the mounting bolts securing the lock, remove the old unit and fit the replacement in the correct orientation.
- Reconnect rods and electrical connector, test locking/unlocking (both remote and manual) before reinstalling the door trim.
- Lubricate latch moving parts with appropriate grease and ensure clips/fasteners are secure.
After installation, verify central locking operation on all doors, confirm the door closes and latches properly, and check that child locks and interior handles operate as expected.
Most Common Failure Causes
Door locks and actuators most often fail due to a combination of mechanical wear and environmental factors: degraded internal plastic gears or motor wear from repeated cycles, corrosion from water ingress, seized or bent linkage rods, broken clips, or damage from door impacts. Symptoms include intermittent operation, loud or slow actuator noise, door that will not latch or unlock, or the lock sticking in one position. Failures commonly appear after several years and many thousands of open/close cycles, especially on vehicles exposed to moisture, road salt or lack of periodic lubrication.
Notes For Professionals
When ordering, reference the part numbers listed above to ensure correct matching. This unit is a direct replacement for the left rear door on Citroën C4 5‑door models; installation is straightforward for any technician with basic door trim removal experience. If rust or body damage is present, inspect surrounding sheet metal and drain paths to prevent premature failure of the new lock.
