High-quality Valeo rear window wiper motor compatible with Citroën C5 I and C5 II estate models. Supplied under multiple reference numbers commonly used in parts catalogues, this electric motor drives the rear wiper arm and mechanism to ensure clear rear visibility in wet conditions. Ideal for mechanics and DIY enthusiasts who search by part number (9638335780, 54904512, 6405K1).

Key Features

Reliable electric motor with integrated reduction gearing designed for the rear tailgate wiper linkage. Robust design to withstand regular use and the environmental exposure typical for tailgate-mounted components. Direct-fit replacement for OE-mounted units on compatible Citroën C5 estate models, matching original mounting points and electrical connector.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C5 I Estate, Citroën C5 II Estate
• Product Codes: 9638335780, 6405K1, 54904512, 03
• Other Numbers: NFP (as listed in supplier data)

Function

The unit provides the rotational drive for the rear wiper arm via an electric motor and gearbox. It converts electrical energy (12 V system) into controlled mechanical movement transmitted through the wiper linkage to clear the rear window.

Common Symptoms Of Failure

• Rear wiper does not move at all despite ignition on.
• Intermittent operation or loss of torque—wiper moves slowly or stalls under load.
• Unusual grinding or clicking noises from the tailgate area.
• Wiper stops in wrong position or does not park correctly.

Why The Part Usually Fails

Failures are most often caused by water ingress and corrosion of the gearbox or motor brushes, wear of internal gears, or mechanical overload when the wiper arm is frozen to the glass. Electrical issues such as worn brushes, poor connector contacts, or short circuits can also lead to malfunction. Exposure to road salt and repeated cycling accelerates wear.

Replacement Guide

Basic steps for replacement (for experienced mechanics or competent DIYers):

• Disconnect the vehicle battery before starting work to prevent short circuits.
• Remove the rear wiper arm: lift the cap, undo the retaining nut, and slide the arm off the splined shaft.
• Remove interior tailgate trim to access the motor and wiring harness (careful with plastic clips and trim fasteners).
• Unplug the electrical connector from the motor and remove the motor mounting bolts.
• Fit the replacement motor, secure mounting bolts to manufacturer recommendations, reconnect the electrical plug and reassemble trim.
• Refit the wiper arm, set correct park position, tighten the retaining nut and test operation through its full sweep at different ignition positions.

Installation Recommendations

• Always disconnect the battery before removal and follow the vehicle manufacturer’s instructions to avoid damage to electrical systems.
• Inspect the wiper arm, linkage and mounting splines for wear or play; replace worn components to prevent early failure of the new motor.
• Apply a light anti-seize to the spline if assembly conditions require, and ensure the wiper arm is correctly indexed during reassembly.
• After installation, verify smooth operation and correct park position; check for abnormal noises or binding across the full sweep.

Suitability And Notes

This motor is intended as a direct replacement for rear wiper applications on Citroën C5 I and II estate variants carrying the listed part numbers. Always match the part number listed on the old unit with the codes above to ensure correct fitment. Searching by OE number such as 9638335780 or 54904512 will typically locate this exact item in parts databases.

Why Choose This Part

Designed to the fit, form and function expected for OE-style replacements, this Valeo rear wiper motor offers a straightforward solution to restore rear visibility and eliminate symptoms such as non-operation, poor torque, or noisy movement. Clear part-number referencing makes ordering and inventory control easier for workshops and independent mechanics.

Commonly used in various Citroën and Peugeot models, this wiper motor is compatible with multiple part numbers, including 9632671180, 3397020506, 0390241700, 6401F0, and 6405J2. Often, old wiper motors fail due to wear and tear from regular use or exposure to harsh weather elements. Replacing your wiper motor is vital for ensuring optimal performance and extending the lifespan of your windshield wipers.

Technical Information:

• Manufacturer: Citroën
• Model: C5
• Product Codes: 9632671180, 3397020506, 0390241700
• Additional Numbers: 6401F0, 6405J2

When replacing the wiper motor, it is crucial to ensure the correct model and compatibility with your vehicle. Follow the manufacturer’s guidelines for installation to ensure proper functioning and prevent damage.

The rear wiper motor from VALEO marked 9632671980 or 53012412 and code 6405J1 is designed for Citroën C5 I and II sedan models. It is a crucial component of the rear wiper system, ensuring effective cleaning and removal of dirt from the rear window.

Installation and Maintenance

When replacing the rear wiper motor, it is important to ensure proper installation and compatibility with the specific vehicle model. It is recommended to use original spare parts or components from reputable manufacturers to maintain the safety and reliability of the rear wiper system.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C5 I and II Sedan
• Product Codes: 9632671980, 53012412, 6405J1
• Additional Numbers: NFP

Product Overview

This used rear wiper mechanism is suitable for Citroën C5 estate models up to 2007 and carries original Stellantis/Citroën part references. The unit drives and guides the rear wiper arm, converting the motor output into the oscillating movement that keeps the rear window clear. Bearing and built-in microswitch are reported functional, which reduces the amount of additional work required at installation.

Key Features & Benefits

• Direct Fit For Specified Citroën C5 Estate Models — simplifies replacement for workshops and DIY mechanics.
• Includes Functional Bearing And Microswitch — lowers the chance of immediate secondary failures.
• Supplies Same Mechanical Interface As Original Equipment — no modifications typically required.
• Commonly Searched By Part Numbers (Good For SEO): 9651000780, 9637858580, 6405K2, 6405K3, 6405K4, 6405K5, 6936C2.

Function

The mechanism converts rotational motion from the rear wiper motor into the back-and-forth sweep of the wiper arm. The integrated bearing supports the pivot and the microswitch (park switch) signals the wiper control when the arm has returned to its rest position. A correctly functioning mechanism ensures smooth, noise-free wiping and reliable park detection.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C5 Estate (Up To 2007)
• Product Codes: 9651000780, 9637858580
• Other Numbers: 6405K2, 6405K3, 6405K4, 6405K5, 6936C2

Compatibility

Designed For Rear-Wiper Assemblies Used On Citroën C5 Estate Models Produced Until 2007. Part Numbers Listed Above Are Commonly Referenced When Searching For Replacements; Confirm Visual Match With Existing Unit Before Installation.

Common Failure Modes

• Water Ingress And Corrosion — Causes Seized Pivot, Noisy Operation, Or Electrical Shorting.
• Worn Or Damaged Plastic Gears — Results In Slipping, Intermittent Movement Or Complete Loss Of Motion.
• Failing Bearing — Produces Excessive Play And Noise, Alters Wiper Sweep Geometry.
• Malfuctioning Microswitch (Park Switch) — Leads To Incorrect Park Positioning Or Wiper Not Returning To Rest.

Replacement Guide

Basic Steps For Removal And Fitment (Typical Procedure):

• Remove The Rear Wiper Arm: Pry Off The Protective Cap, Unscrew The Retaining Nut, And Withdraw The Arm From The Spindle.
• Remove Tailgate Trim: Open Tailgate And Carefully Remove Interior Trim To Access The Mechanism. Keep Fasteners And Clips Organized.
• Disconnect Electrical Connector: Unplug The Wiper Motor Connector To Avoid Short Circuits.
• Unbolt The Mechanism: Remove Mounting Bolts/Screws Securing The Assembly To The Tailgate And Extract The Unit.
• Fit New Mechanism: Position The Replacement, Tighten Fasteners To Manufacturer Torque Where Available, Reconnect Electrical Connector, Refit Trim And Wiper Arm. Check Wiper Park Position And Sweep.

Installation Recommendations

• Wear Gloves And Eye Protection. Handle Plastic Trim Clips Carefully To Avoid Breakage.
• Before Reassembly, Check The Tailgate Sealing Areas And Clean Any Corrosion To Prevent Future Water Ingress.
• Verify Electrical Connector Pins Are Clean And Free Of Corrosion. Use Dielectric Grease If Appropriate.
• After Installation, Cycle The Wiper Several Times To Confirm Correct Park Position And Smooth Operation. Adjust Wiper Arm Position If Required.
• Disconnect The Battery If Working Near Multiple Electrical Systems For Added Safety, And Follow Standard Workshop Procedures.

Why This Part Most Often Fails

Rear wiper mechanisms are exposed to weather and road contaminants. Water ingress and salt accelerate corrosion of metal parts and degradation of grease, while UV and age can embrittle plastic gears. Repeated loading from frozen or obstructed wipers increases mechanical stress on the gearbox and bearings. The microswitch may wear out from repeated cycles or fail due to moisture and corrosion.

Notes For Professionals And DIYers

This unit Is Suitable For Mechanics And Competent DIYers. Always Confirm Visual Fit And Part Numbers Before Installation. If The Wiper Motor Or Electrical System Shows Related Faults, Diagnose Those Items In Parallel To Prevent Repeat Failures.

Compatible with various Citroën and Peugeot models, this part is ideal for both professional mechanics and DIY enthusiasts. Whether you’re replacing a worn-out component or upgrading your vehicle, this wiper mechanism is engineered for durability and performance.

When it comes to maintenance, the wiper mechanism may degrade over time due to wear and tear, particularly in extreme weather conditions. It’s advisable to check and replace it when wipers show signs of sluggish performance or leave streaks on the windshield.

Technical Information

• Manufacturer: PSA Citroën Peugeot
• Model: Citroën C5
• Product Codes: 9632671180, 3397020506, 0390241700
• Additional Numbers: 6401F0, 6405J2

The mechanism is compatible with various Citroën and Peugeot models, guaranteeing the right fit and functionality. It is constructed from high-quality materials for durability and reliability, essential for everyday use.

Regular use of windshield wipers leads to wear and degradation over time. Common issues include slow or erratic movement, which can be caused by a failing mechanism. Replacing a worn-out wiper mechanism is crucial to maintain clear visibility during adverse weather conditions.

When replacing the wiper mechanism, follow the specific instructions for your vehicle model to ensure correct installation. This may include removing the wiper arms and ensuring all connections are securely fitted.

Technical Information:

• Manufacturer: PSA Citroën Peugeot
• Model: Citroën C5 (2001-2007)
• Product Codes: 9632671180, 3397020506, 0390241700, 6401F0, 6405J2
• Additional Numbers: 3397020506, 390241700, 6401F0, 6405J2, 9632671180

With part numbers 9632671180, 6401F0, 6405J2 and additional codes like 3397020506 and 0390241700, this wiper mechanism is key for anyone looking to maintain or upgrade their vehicle’s wiper function. It is crucial to replace the wiper mechanism when you notice reduced efficiency or if the wipers have stopped working altogether, as this can lead to safety issues on the road.

The installation process is straightforward for those familiar with vehicle maintenance; consult your vehicle’s service manual for specific instructions on replacement. Regular inspections and proactive replacements can help avoid sudden failures, providing peace of mind while driving.

Technical Information

• Manufacturer: PSA CITROEN PEUGEOT
• Model: C5 I and II
• Product Codes: 9632671180, 6401F0, 6405J2
• Additional Numbers: 3397020506, 0390241700