Description
Electric lock – central locking – right front door for Citroën C5 I and II. Used part with guaranteed functionality.
Product Overview
This right front door electric lock (central locking actuator) is designed for Citroën C5 first and second generation vehicles. It is a direct-fit replacement for worn or failed right front door locks and is commonly searched for by the OEM code 9136J9. The unit controls mechanical locking and integrates with the vehicle’s central locking system to operate from remote key fob, door switches and comfort module.
Key Features
- Direct compatibility With Citroën C5 I And C5 II Models
- Supplied As A Used Part With Functional Guarantee
- OEM Reference: 9136J9 (sometimes listed As 9136.J9)
- Operates Both Mechanical Latch And Electric Actuator Functions
Who Should Buy
Ideal For Professional Auto Technicians And Experienced DIYers Repairing Citroën C5 Door Mechanisms. Suitable When The Right Front Door Fails To Lock/Unlock, Operates Intermittently, Or Produces Grinding/Clicking Noises.
How The Part Works
The door lock assembly houses the mechanical latch and a small electric actuator motor that moves the locking linkage. When a lock/unlock signal is sent (via remote fob, interior switch, or BSI), the actuator drives the latch to the locked or unlocked position. The assembly also contains linkages for interior handles and the key cylinder, and electrical connectors for power and control signals.
Replacement Procedure (General Guide)
- Safety First: Disconnect The Negative Battery Terminal Before Starting Work.
- Remove Door Trim Panel Carefully, Starting With Screws And Trim Clips; Preserve Plastic Vapor Barrier.
- Locate And Disconnect The Door Lock Electrical Connector And Any Actuator Plugs.
- Disconnect Mechanical Linkages From Interior Handle, Exterior Handle And Cylinder. Note Or Photograph Rod Positions For Reassembly.
- Unbolt The Lock Assembly From Inside The Door Shell And Remove The Unit.
- Install Replacement Lock: Position Assembly, Reattach Bolts, Reconnect Linkages And Electrical Connector.
- Test Locking/Unlocking Functions (Remote, Interior Switch, And Manual Key) Before Reassembling Trim.
- Refit Vapor Barrier And Door Trim Panel; Reconnect Battery And Perform Final Function Check.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5 I And Citroën C5 II
- Product Codes: 9136J9
- Other Numbers: NFP
Installation Recommendations
Always Work In A Clean, Dry Environment. Inspect Door Wiring Harness And Connector Pins For Corrosion Or Damage Before Installing The New Lock. Apply A Light Lubricant To Latch Mechanisms And Linkage Joints To Ensure Smooth Operation. When Reconnecting Linkages, Verify Correct Geometry So Handles Operate Without Binding. Test All Functions Thoroughly (Remote, Interior Switch, Manual Key) Before Final Assembly.
Why This Part Fails
Common Causes Of Failure Include Water Ingress And Corrosion Of Mechanical Components, Wear Of Plastic Gears Or Actuator Motor, Broken Linkage Rods, Or Internal Electrical Faults Due To Moisture Or Connector Corrosion. Symptoms Typically Include Intermittent Operation, Grinding Or Clicking Noises, Door Not Locking Or Unlocking, Or Handle Not Releasing Latch.
Tips For Diagnosis
- Listen For Actuator Noise When Sending Lock/Unlock Commands—no noise Points Toward Mechanical Or Electrical Disconnection.
- Check For Moisture Or Rust Inside The Door; Dry And Clean The Area Before Installing Replacement.
- Confirm Power And Ground At The Door Harness Connector With A Multimeter If The Actuator Receives No Voltage.
Why Choose This Unit
This used right front door lock offers a cost-effective way to restore central locking function on Citroën C5 I and II vehicles. It is particularly useful when the fault is limited to the door lock assembly rather than whole-door wiring or the vehicle’s central control module.
Note On Part Number Search
Customers Often Search For This Unit By The Code 9136J9. Confirm Compatibility With Vehicle Model And Door Position (Right Front) Before Ordering.
Reason Why The Part Most Often Fails
Primary Failure Mode Is Mechanical Wear And Water-Related Corrosion Leading To Actuator Motor Or Latch Seizure. Repeated Exposure To Moisture Or Road Salt Accelerates Degradation, Especially Around Door Seals And Drainage Points.
Mounting Recommendations
Disconnect Battery Before Removal. When Installing, Ensure All Electrical Connections Are Clean And Secure, Linkages Are Correctly Adjusted, And Latch Mechanism Is Lubricated. Test Full Functionality Before Reinstalling Trim. If Wiring Damage Is Present, Repair The Harness To Prevent Repeat Failures.
