Left Rear Door Lock Citroën C3 56316780 61427280 9137H5 9137E1

Tue, 27 Jun 2023 04:09:09 +0000

Electric central locking actuator for the left rear door for Citroën C3. 4 pins.

Product Overview

Reliable replacement actuator for the left rear door central locking on Citroën C3 vehicles. This 4‑pin electric lock unit operates the latch and the central locking mechanism, restoring remote and manual locking/unlocking functions. Ideal for professional workshops and DIY enthusiasts who search by OE part numbers — the actuator matches common Citroën part references for straightforward identification and fitment.

Technical Information

Manufacturer: Citroën / Stellantis
Model: Citroën C3 (Left Rear Door)
Product Codes: 56316780; 61427280; 9137H5; 9137E1
Other Numbers: 91370; 4‑Pin Connector

Installation And Recommendations

Typical replacement is straightforward for a trained technician or experienced DIYer. Recommended workflow:

Disconnect the vehicle battery before starting to avoid electrical shorts.
Lower the window if possible, then remove the inner door trim using appropriate trim tools to avoid damage.
Peel back the moisture barrier carefully to access the lock actuator.
Disconnect the 4‑pin electrical connector and detach any linkage rods or clips connected to the actuator.
Remove mounting screws, replace the actuator, reattach linkage rods, and secure mounting screws to the manufacturer’s recommended tightness.
Reconnect the electrical connector and reconnect the battery. Test locking/unlocking with the remote and interior switch before reassembling the door trim.

Common tools required: plastic trim tools, Torx/Philips drivers, small sockets, pliers. In most cases the actuator is plug‑and‑play and does not require coding.

Common Causes Of Failure

Door lock actuators fail for several typical reasons:

Wear Of Internal Gears And Motor — Plastic gears can wear or strip over time, especially after many cycles.
Water Ingress And Corrosion — Moisture entering the door can corrode electrical contacts or motor windings.
Mechanical Damage — Broken linkage rods, clips, or impact damage from accidents can compromise the actuator.
Electrical Issues — Intermittent connectors or short circuits may prevent the actuator from receiving proper power.

Failure Rate: There is no fixed service interval. Lifetime depends on usage, environment and maintenance; actuators in wet or heavily used doors typically fail sooner.

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