Product Overview

This left front door electric central locking latch/actuator is a direct replacement for the CITROËN C4 Coupé (3‑door) driver side. Ideal for mechanics and DIY enthusiasts who need to restore reliable central locking, door latching and secure closure. The unit corresponds to OE references commonly searched by part number (9647173980 / 9135FE), which helps customers find the exact match quickly.

Key Benefits

• Direct Fit For Driver Side: Designed for the left front door on Citroën C4 Coupé models (3‑door).
• Restores Central Locking Function: Replaces faulty latch/actuator to recover remote and mechanical locking operations.
• Easy To Identify By Part Number: Frequently referenced by OE codes 9647173980 and 9135FE for fast lookup.

Technical Information

• Manufacturer: Stellantis (Citroën)
• Model: Citroën C4 Coupé (3‑door) — Left Front Door / Driver Side
• Product Codes: 9647173980, 9135FE
• Additional Numbers: 9135FE | 9647173980

Installation Recommendations

Recommended For Professional Or Experienced DIY Installation. Typical replacement procedure:

1. Disconnect the vehicle battery before starting work to avoid short circuits and accidental locking.
2. Remove the interior door trim panel carefully (clips and screws) to access the lock mechanism.
3. Disconnect electrical connector(s) to the actuator and detach mechanical linkages/rods from the latch.
4. Remove securing bolts/screws and extract the old lock assembly from the door shell.
5. Install the replacement unit in reverse order: position latch, fasten bolts, reconnect rods and electrical connector, then test operation with the door open.
6. Verify Central Locking, Manual Lock/Unlock, Door Handle Operation And Child Lock Function Before Reassembling Door Trim.

Use appropriate trim tools to prevent damage to clips and trim panels. Tighten fasteners to manufacturer torque where specified and ensure linkages move freely without binding.

Why This Part Commonly Fails

• Wear And Tear: Plastic gears or internal components of the actuator wear out over time, causing intermittent or complete failure.
• Moisture And Corrosion: Water ingress inside the door can corrode contacts or seize moving parts.
• Mechanical Damage: Broken or bent linkage rods and shock from slamming doors can damage the latch mechanism.
• Electrical Issues: Connector corrosion, broken wiring or a failed actuator motor lead to inoperative locking.

Practical Tips

• When replacing the latch, inspect surrounding components (linkages, connectors, door seal) and repair any damaged items to prevent repeat failures.
• Lubricate moving metal parts with suitable grease; avoid contaminating electrical connectors.
• After fitting, cycle the lock several times and check central locking from inside and via remote to confirm full functionality.

Ordering And Identification

Searchable by OE numbers 9647173980 and 9135FE. Providing the part number in your search increases the chance of a quick match. Suitable primarily for Citroën C4 Coupé 3‑door driver side applications where these reference numbers are specified.

Mounting And Coding – Important

Before removal/installation always disconnect the battery and follow manufacturer procedures to avoid damage to the unit.

Why Choose This Part

Designed to bring back reliable locking and door security, this latch/actuator is a practical replacement for worn or failed driver side locks on the Citroën C4 Coupé. Clear OE references and a straightforward installation path make it a smart choice for workshops and competent DIYers seeking an effective repair.

Product Description

This electric central locking lock is designed for the left front (driver’s) door of the Citroën C4 Coupé. Ideal for professional garages and competent DIY enthusiasts, the unit provides a direct-fit replacement for worn or faulty door locking mechanisms and is commonly searched under OEM numbers 9660700780, 9683418180 and internal code 9135FE. The part restores reliable central locking operation, improves door latching security and eliminates intermittent locking faults that can leave a door unsecured or prevent the lock from operating via key fob or interior switches.

Technical Information

• Manufacturer: Stellantis (Citroën)
• Model: Citroën C4 Coupé (Left Front / Driver Side)
• Product Codes: 9660700780, 9683418180
• Other Numbers: 9135FE

Installation Recommendations

• Always disconnect the vehicle battery before beginning work to avoid short circuits and to protect electronic modules.
• Remove the interior door trim panel carefully to access the lock mechanism; keep clips and screws organized for reassembly.
• Disconnect the electrical connector and any linkage rods before removing the lock unit from the door shell.
• Check door locking rods, clips and the wiring harness for wear or damage while the door is open — replace any brittle clips or corroded connectors.
• After fitting the new lock, test mechanical operation and central locking cycles before reattaching the door trim.
• Use appropriate torque for fasteners and avoid over-bending linkage rods to maintain smooth operation.

How To Replace

1. Disconnect negative terminal of the battery and wait a few minutes.
2. Remove the door card: unscrew visible fasteners and release retaining clips around the panel edge.
3. Peel back the vapor barrier carefully to access the inside of the door shell.
4. Locate the lock assembly and disconnect the electrical connector and linkage rods (note their positions for reassembly).
5. Unscrew the lock unit mounting bolts and remove the actuator/latch from the door.
6. Install the replacement lock, reconnect linkages and electrical connector, then operate the lock manually to confirm correct movement.
7. Reconnect the battery and test central locking via key fob, door switch and manual operation; reassemble the door trim after successful tests.

Why This Part Most Commonly Fails

• Water ingress and corrosion inside the door, leading to seized mechanical parts or electrical connector faults.
• Wear of internal gears and plastic components in the actuator, causing loss of drive or intermittent operation.
• Mechanical damage from forced door closing or impact which can bend linkages or break mounting points.
• Electrical faults such as corroded connectors or damaged wiring looms preventing power reaching the actuator.

Notes For Buyers

Searchable by OEM numbers 9660700780, 9683418180 and code 9135FE. Suitable for Citroën C4 Coupé left front (driver) door applications. Recommended for repair shops and experienced DIYers who have basic tools for door trim removal and electrical disconnection.