Description
Rear Window Wiper Motor for CITROEN C3 II A51.
This high-quality replacement rear wiper motor is designed for Citroën C3 II (A51) vehicles and carries the OEM reference numbers 9683382380 and 6405QJ. Ideal for professional workshops and DIY mechanics, the unit restores reliable rear wiper function, ensures proper park positioning and smooth intermittent wiping, and is a direct-fit component that simplifies installation.
Key Features
– Direct-fit replacement for the rear tailgate wiper assembly of Citroën C3 II (A51).
– OEM Reference Numbers: 9683382380, 6405QJ — commonly used in spare-part searches.
– Restores wiping force and correct park position; compatible with factory linkage and mounting points.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C3 II (A51)
- Product Codes: 9683382380, 6405QJ
- Other Numbers: 6405QJ | 9683382380
How The Part Works
The rear wiper motor converts electrical energy into rotational motion and transmits that motion through a small gearbox and linkage to move the rear wiper arm across the glass. It includes internal brushes, a small DC motor, and reduction gears that provide the torque required to clear water, dirt and debris. The park switch or gearing ensures the blade returns to its resting position when the wiper is switched off.
Typical Failure Modes And Lifespan
Rear wiper motors usually last many years, but common failure causes include:
- Water Ingress And Corrosion: Seals or booting can fail, allowing moisture to reach brushes and contacts.
- Worn Brushes Or Commutator: Electrical wear reduces motor performance and leads to intermittent operation or total failure.
- Gear Or Linkage Wear: Plastic gears can strip or linkage joints can seize, limiting movement or causing noise.
- Electrical Connection Problems: Corroded plugs or damaged wiring can interrupt current flow.
Typical service life depends on usage and environment; 8–15 years is common in normal conditions, shorter in areas with heavy salt exposure or frequent use.
Replacement Procedure (Overview)
Intended for experienced technicians and competent DIYers. Basic replacement steps:
- Park Vehicle And Remove Key: Ensure ignition is off.
- Disconnect The Battery: Always disconnect the negative terminal before working on electrical components.
- Remove Rear Wiper Arm: Free the arm from the splined shaft (cover cap or retaining nut may need removal).
- Access Tailgate Trim: Remove interior tailgate trim to expose the motor and linkage (retain fasteners and clips).
- Disconnect Electrical Connector: Carefully unplug the motor harness.
- Unbolt Motor Assembly: Remove mounting bolts and extract the motor with linkage; transfer any reusable linkage or seals if required.
- Fit New Motor: Mount the replacement unit, reconnect the plug and test operation before reassembling trim.
- Reinstall Trim And Wiper Arm: Align the wiper arm to the correct park position and secure. Reconnect the battery and perform a functional test.
Always check that the wiper parks correctly and that there is no binding in the linkage before final assembly.
Installation Recommendations
- Use Correct Tools: Torx/sockets and trim tools reduce risk of damage to clips and panels.
- Test Before Reassembly: Connect battery and cycle the wiper to verify correct direction, speed and park position before reinstalling interior trim.
- Seal And Protect: Inspect tailgate seals and drain holes; replace any deteriorated gaskets and apply dielectric grease to connectors to prevent corrosion.
- Tightening: Secure mounting fasteners firmly but avoid over-torquing plastic components.
Why This Part Fails Most Often
Moisture penetration and contamination are the leading causes—rusted connectors, corroded motor internals and worn brushes. Mechanical overload from frozen wipers, damaged blades or bent linkage also accelerates gear wear or causes the motor to stall. Preventive measures include keeping seals intact, clearing tailgate drains, and replacing wiper blades as they age to avoid excessive resistance on the motor.
Notes For Professionals
This motor is referenced by OEM codes 9683382380 and 6405QJ; include these numbers in parts searches to improve findability. Suitable for mechanics and experienced DIYers who require a direct-fit solution for Citroën C3 II (A51) rear wiper faults.
Warranty And Quality
Check the seller’s warranty and return policy. Using the correct OEM-coded replacement helps ensure fitment and long-term reliability.
