Description
Electric lock for right front (passenger) door for Citroën C8 and Peugeot 807.
Part Function
This electric door lock assembly secures and releases the right front (passenger) door and integrates the mechanical latch with an electric actuator for central locking. It operates the door catch, senses latch position and transmits lock/unlock commands from the vehicle’s central locking system.
Compatibility and Fitment
Direct fit for Citroën C8 and Peugeot 807 passenger (right front) door installations. Commonly referenced by product code 9136L8. Ideal for mechanics and experienced DIY technicians who are replacing a faulty right front lock on the listed models.
Symptoms Of A Faulty Lock
- Door does not lock or unlock with remote/central locking.
- Intermittent operation or only manual locking works.
- Grinding or clicking noises from the door when operating the lock.
- Door fails to latch properly or opens while driving.
Why This Part Fails Most Often
Failure is usually caused by mechanical wear of internal gears and levers, plastic component fatigue, corrosion or water ingress, and electrical connector or actuator faults. Heavy use, exposure to moisture and road salt, or damaged door seals accelerate deterioration. Wiring harness damage or poor grounding can produce intermittent electrical faults that mimic mechanical failure.
How To Replace
Recommended for experienced technicians or skilled DIYers. Typical replacement steps:
- Disconnect the negative battery terminal before beginning work to avoid short circuits and protect vehicle electronics.
- Remove the interior door trim/panel to access the lock assembly (retain clips and screws).
- Carefully disconnect the electrical connector and any door module plugs.
- Disconnect mechanical linkages (door handle rods) and remove mounting fasteners securing the lock unit.
- Install the new lock: secure with original fasteners, reconnect linkages and electrical connector, and check free movement of the latch before reassembling the door trim.
- Reconnect the battery and test central locking, remote operation and manual handle functions. Verify door alignment and that the door closes and latches correctly.
Installation Recommendations
- Use dielectric grease on electrical connectors to reduce corrosion and ensure reliable contact.
- Inspect door seals and drainage channels for leaks; correct any water ingress to extend service life.
- Do not force linkages; check for correct geometry to prevent premature wear.
- Test the complete locking cycle several times after installation and verify central locking behaviour for all doors.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C8; Peugeot 807
- Product Codes: 9136L8
- Other Numbers: —
Service Life And Maintenance
There Is No Fixed Replacement Interval. Service Life Depends On Use And Environment. Routine inspection and keeping door internals clean and dry prolong life; lubrication of moving parts during repairs helps reliability.
Notes For Troubleshooting
If Multiple Doors Fail Simultaneously, Check The Central Locking Module And Wiring Grounds. If The Issue Is Intermittent, Inspect Connectors For Corrosion, And Test The Actuator Directly With A Bench Power Source To Confirm Mechanical Operation.
