Description
Mechanism for electric lowering of the left rear window for Citroën C3 II A51 cars
Side – door behind the driver
Including electric motor
6PIN
Part description
This used left rear window winder is for Citroën C3 II A51 cars. It is a complete part including the electric motor, which facilitates the replacement of the original non-functioning or damaged mechanism. For many repairs, the 6PIN marking is also important, according to which the part can be more easily compared with the originally mounted piece.
The window winder is a key part of the comfortable operation of the side window. If the window moves jerkily, remains hanging, cannot be retracted or pulled out, or you can hear the motor running without the glass moving, this mechanism is often the cause of the malfunction.
The part is suitable for mechanics and do-it-yourselfers who are looking for a genuine used Citroën car part by part number or specific car model.
Technical information
- Design: electric window lowering mechanism
- Side: left rear door, behind the driver
- Part of the package: including electric motor
- Connector: 6PIN
Product codes
Installation recommendations
Generally/Typically for this type of part the exact replacement procedure may vary by specific car and door design, but the procedure below is common practice when replacing a power window with a motor.
1) Before assembly
- Check whether the new part corresponds to the original piece in terms of shape, attachment, position of the line and design of the 6PIN connector.
- Check if the part is intended for the left rear.
- Check the condition of the guiding parts, cables, holders and connector for mechanical damage.
- If possible, also visually compare the position of the electric motor and mounting points with the old mechanism.
2) Necessary tools and materials
- set of common hand tools
- screwdrivers and socket wrenches
- plastic levers for removing upholstery
- detergent for removing dirt
- protective gloves
- suitable agent for light treatment of moving parts, if needed during assembly
3) Step-by-step assembly procedure
- Disconnect the battery and secure the vehicle against unwanted movement.
- Dismantle the inner lining of the relevant door so as not to damage the upholstery, clips or electrical connectors.
- Carefully access the window retract mechanism area and check the wiring.
- Secure the window glass against spontaneous movement so that it is not damaged when dismantling the original mechanism.
- Disconnect the electrical connector of the electric motor of the original puller.
- Unfasten the old mechanism and carefully remove it from the door area.
- Compare the removed part with the new part, especially the mounting, routing and connector type.
- Sit the new mechanism into place, making sure all mounting points are properly seated.
- Connect the electric motor connector and check that the wiring is not pinched or stretched anywhere.
- Reattach the glass to the mechanism if it was disconnected and verify that it moves smoothly in the guides.
- Before fully folding the door, perform a basic function test of the window movement.
- After verifying the function, refit the protective elements and door trim.
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4) Post-assembly checks and test drive/function verification
- Verify that the window moves smoothly throughout its range.
- Check that the mechanism does not make unusual noises, crackles or stutters.
- Check that the window fits properly after closing.
- Check that there are no loose connectors, clips or parts of the upholstery left after assembly.
- After a short drive, re-verify that nothing has come loose and the download function remains without problems.
5) The most common assembly mistakes + how to avoid them
- Reversing part side – always double check that it is the left rear side before fitting.
- Not matching the connector – check the 6PIN design before fitting the mechanism into the door.
- Damage to upholstery or fasteners – use appropriate removal tools.
- Insufficient securing of the glass – be careful when working with the glass to prevent it from shifting or breaking.
- Pinched wiring – before final assembly of the door, check the cable routing and free movement of the mechanism.
- Premature assembly of the door without a test – always first verify the functionality of the mechanism before fully assembling the door.
Reasons why the part is damaged
- normal wear and tear of the mechanism and moving parts during long-term use
- excessive load with a frozen or hardened window
- damage to cables, guide elements or glass holders
- intrusion of moisture and dirt into the door area
- electric motor or electrical connection failure
- unprofessional previous intervention or incorrect installation







