Description
Electric central locking actuator for the right front door for CITROËN C4 and DS4
Passenger door
This genuine replacement electric door lock is designed for the right front (passenger) door of Citroën C4 (II) and DS4 models. Ideal for professional workshops and experienced DIY mechanics, the unit restores reliable central locking operation, removes intermittent locking faults and eliminates mechanical jamming caused by worn internal components. Commonly searched under part numbers 9685351480 and 9136GR, this actuator fits vehicles from the relevant model ranges and replaces the OEM door locking mechanism directly.
Features And Benefits
– Direct Fit Replacement: Matches original mounting points and electrical connector for straightforward installation.
– Restores Central Locking Function: Replaces worn gears, motor or latch mechanism that prevent reliable locking/unlocking by remote or door switch.
– Durable Construction: Plastic and metal components designed to operate in door environment with integrated latch and rod connections.
– Suitable For Workshops And DIY: Clear fitment to known Citroën/DS4 models makes it easy to identify via OE numbers 9685351480 / 9136GR.
Installation Recommendations
Before starting, disconnect the vehicle battery to avoid short circuits and accidental airbag deployment. Typical replacement procedure:
- Remove inner door trim and vapor/water barrier carefully to access the lock assembly.
- Disconnect electrical connector to the actuator and detach locking rods/linkages from the mechanism.
- Unbolt the lock unit from the door shell and remove it together with any retained clips or screws.
- Compare new unit with old one for identical link positions and connector type, then fit the replacement, reconnect rods and electrical connector.
- Before reassembling the door trim, test locking/unlocking with key fob and interior switch, cycle the latch several times and check for smooth operation.
- Reinstall vapor barrier and trim, ensure wiring is routed without pinching and fasteners are secured to manufacturer torque where specified.
When replacing, inspect door seals, drain holes and the latch striker for rust or deformation. Apply light dielectric grease to link pivot points to prolong life. If the vehicle shows electrical faults or multiple door actuators fail simultaneously, check fuses and central locking control module wiring before replacing individual locks.
Why This Part Most Often Fails
Door lock actuators commonly fail due to wear of the small plastic gears and internal motor, water ingress that corrodes contacts or gears, and mechanical overload from misaligned door strikers or damaged linkages. Vehicles frequently exposed to moisture, road salt or heavy use (many cycles per day) are more prone to early failures. Accumulated dirt and lack of lubrication can also cause the latch to stick and increase load on the actuator motor.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 II, DS4
- Product Codes: 9685351480, 9136GR
- Other Numbers: 9136GR | 9685351480
Additional Notes For Mechanics
This part is typically ordered by OE number, so quoting 9685351480 or 9136GR helps technicians and parts departments find the correct item quickly. Always verify physical match (connector type, rod attachments and mounting holes) before installation. After fitting, confirm that the central locking system recognises the actuator and that all door functions operate smoothly.
Recommendation
Replace damaged or noisy door locks promptly to avoid lock-in or lock-out situations and to prevent further damage to central locking wiring and control modules. For workshop installations, include a quick inspection of the adjacent window mechanism and door wiring harness to ensure no additional wear contributors remain.
