Description
Left rear window regulator mechanism for Stellantis vehicles
Door behind the driver
Part description
The used rear window regulator mechanism guides and moves the glass in the door. It is a suitable replacement for a damaged window regulator, provided it matches the original part design. The reference materials list it under numbers 9817212580, 9830335580 and 9840175480 and associate it with the Citroën Berlingo K9, PEUGEOT RIFTER and other vehicles listed below.
Note regarding the conflicting side designation: the product name indicates the right rear window, while the original description indicates the left rear window and the door behind the driver. The supplied information therefore does not allow the side to be determined unambiguously. Before ordering, compare the designation, the shape of the mechanism, the mounting points and the glass attachment design with the original part. Vehicle model compatibility alone is not sufficient to confirm that the design matches.
Technical information
- Manufacturer: not specified; the reference materials list the designation Stellantis / CITROEN / PEUGEOT.
- Model: Citroën Berlingo K9 | FIAT DOBLO III | OPEL COMBO E K9 | PEUGEOT RIFTER | Toyota ProAce City.
- Part type: rear window regulator mechanism.
- Condition: used automotive part.
- Installation side: ambiguous – the name and original description conflict.
- Supplied with electric motor: not specified.
- Model years and engine variants: not specified.
- Additional numbers: not specified.
Product codes
- Product codes: 9817212580, 9830335580, 9840175480.
Use the product numbers listed above when searching for a replacement window regulator. The reference materials do not specify the relationship between the individual numbers, so do not automatically treat them as confirmation that all versions are interchangeable.
Installation recommendations
The following procedure generally applies to this type of part. The exact procedure for removing the door trim, securing the glass and attaching the mechanism depends on the specific model and door design. Follow the vehicle manufacturer’s service procedure.
1) Before installation
- First, verify that the fault is actually caused by the mechanism. With electric operation, the cause may also be the switch, power supply, wiring or motor.
- Compare the side, product designation, dimensions, mounting points and glass brackets with the old part.
- Check the used part for deformation, cracks, corrosion and damaged mounts. If it has cables, inspect their condition and make sure they are routed correctly.
- If a motor or connector is present, compare its design as well. The reference materials do not indicate whether these are included.
2) Tools and materials required
A set of screwdrivers and wrenches suitable for the fasteners used, tools for removing the trim, materials for safely securing the glass, protective gloves and cleaning supplies are generally used. Choose materials for restoring the door’s protective layer according to the specific design. Use lubricant only where specified by the manufacturer.
3) Step-by-step installation procedure
- Park the vehicle safely, switch off the ignition and secure the door against unintended movement.
- If possible and safe, position the glass to allow access to its attachment. Do not force a jammed mechanism by operating it repeatedly.
- For electric versions, disconnect the power supply according to the vehicle manufacturer’s procedure before disconnecting the electrical system.
- Carefully remove the door trim and expose the mechanism. Protect the clips, wiring and any protective film or membrane.
- Support the glass securely and prevent it from falling. Only then release its connection to the window regulator.
- Disconnect any electrical connectors, release the mechanism’s fasteners and remove it without levering against the glass or damaging the wiring.
- Compare the two parts side by side. Also check the glass guide rails and remove any dirt that could cause excessive resistance.
- Insert the replacement mechanism and position it without tension. Tighten the fasteners according to the service instructions for the vehicle.
- Secure the glass in the brackets, check that it is guided correctly and connect any connectors. The wiring must not interfere with the path of moving parts.
- Remove the temporary glass supports, restore the power supply as specified and carefully test operation. After a successful check, restore the door’s protective layer and reinstall the trim.
4) Post-installation checks and function verification
Check that the glass moves smoothly without tilting, jerking or making unusual noises. Check that it seats properly against the seal and that the trim is securely attached. If the vehicle has one-touch operation or anti-pinch protection, carry out any required initialization and checks according to the manufacturer’s instructions; do not test the protection with your hand. A short test drive may reveal rattling or increased wind noise.
5) Common installation errors and how to prevent them
- Mixing up the side or version: compare the actual part with the old mechanism, especially given the conflicting designation in the supplied information.
- Releasing unsecured glass: always support and secure the glass safely first.
- Installing the mechanism under tension: check that the mounts and glass guides are correctly positioned before tightening.
- Overlooking binding guide rails: eliminate the cause of the resistance to avoid unnecessarily overloading the replacement part.
- Damaging the door’s protective layer: restore it to its correct position and ensure it is sealed so that water does not reach the trim and electrical connections.
Reasons why the part may become damaged
The following causes of damage may generally occur with window regulator mechanisms; they do not describe a confirmed condition of this particular part:
- Wear of moving parts, brackets and any cable drive through prolonged use.
- Increased resistance from the glass caused by dirt, damaged guides or deformed seals.
- Operating a frozen or otherwise jammed window.
- Moisture and corrosion affecting the moving parts of the mechanism.
- Incorrect previous installation, misaligned glass or excessive strain on the mounts.
- Mechanical damage to the door or an impact to its structure.








