Description
Electric central locking actuator for the right rear door for Citroën C4 5-door.
Product Overview
Used OEM electric lock for the right rear door of Citroën C4 5-door models. This central locking actuator operates the latch and integrates the electrical connector and linkage interface. Commonly searched under the OEM codes listed below, the unit is suitable for both professional workshops and DIY mechanics performing door lock or central locking repairs.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4 5-Door
- Product Codes: 9681337080, 9138N5
- Other Numbers: 9138T6, 9660700480E03
Compatibility
Designed for Citroën C4 5-door vehicles that use the above OEM codes. The actuator is typically a direct fit replacement for right rear door latch assemblies matching these part numbers. Always verify the listed product codes when searching for a matching unit.
Function And Common Faults
The electric actuator performs two main functions: it drives the locking mechanism to lock/unlock the door and it engages/disengages the latch as part of the central locking system. Failures most commonly occur due to wear of internal plastic gears, motor burnout, water ingress and corrosion of electrical contacts, or mechanical damage to linkage rods. Symptoms include a non-locking or non-unlocking rear door, intermittent operation, or a humming sound from the door when actuating the central locking.
Replacement Procedure
Basic replacement steps for a competent mechanic or experienced DIYer:
- Disconnect the negative battery terminal before starting to avoid short circuits and unintended airbag deployment.
- Remove the inner door trim carefully (release clips and screws) to access the latch assembly.
- Peel back the moisture barrier and locate the actuator attached to the door latch.
- Disconnect the electrical connector and unclip or unbolt the actuator from the latch mechanism.
- Transfer any retaining brackets or linkage rods as required and install the replacement actuator in reverse order.
- Reconnect the battery and test locking/unlocking operation from the switch, remote, and manual lock to confirm correct function.
Installation Recommendations
- Use trim tools to avoid breaking plastic clips; replace clips that are damaged during removal.
- Inspect and clean the connector contacts; apply dielectric grease if corrosion is minor to improve longevity.
- Check the condition of linkage rods and plastic clips; replace worn components to prevent premature failure of the new actuator.
- Ensure the moisture barrier is resealed to prevent water ingress that can damage the actuator.
- After installation, cycle the locks several times and check for smooth operation and correct latching.
Why The Part Fails Most Often
Most failures stem from long-term mechanical wear (plastic gear stripping), motor degradation, and environmental factors such as water ingress that cause corrosion or short circuits. Impact damage to the door or latch assembly, or forced manipulation of the lock, can also deform components and lead to malfunction.
Keywords For Search
Citroën C4 right rear door lock, central locking actuator C4, 9681337080, 9138N5, 9138T6, 9660700480E03, door lock actuator replacement.
