Description
Electric motor for the sunroof (tilt-and-slide) for Citroën C4 Picasso vehicles.
This Bosch sunroof motor is a direct-fit electric actuator designed for Citroën C4 Picasso models. Ideal for professional workshops and experienced DIYers, the unit restores smooth tilt-and-slide operation of the glass roof. The part is frequently searched by its product numbers (0390200072, 8401NC, 1607362980), so listing these references helps you find the correct replacement quickly. Built to drive the sunroof mechanism reliably, this motor delivers the torque needed to move the panel and operate the internal cable/gear drive assembly. Suitable for replacing worn or seized motors that cause slow movement, grinding noises, or total loss of sunroof function.
Technical Information
- Manufacturer: Bosch
- Model: Citroën C4 Picasso
- Product Codes: 0390200072, 8401NC
- Other Numbers: 1607362980
Function And Typical Symptoms
The sunroof motor drives the tilt-and-slide mechanism, converting electrical input into rotational motion that moves the cable/gear assembly. Common symptoms of a failing motor include slow or intermittent movement, grinding or clicking noises, inability to open or close the sunroof, and complete loss of function. Electrical issues, mechanical binding in the rails, or damaged gears inside the motor assembly are typical causes of these symptoms.
How To Replace
Replacement requires moderate mechanical skill and basic workshop tools. Typical steps:
- Disconnect the negative battery terminal before starting work.
- Remove the headliner trim pieces and any interior panels necessary to access the sunroof motor (retain fasteners and clips).
- Disconnect the electrical connector from the motor and note connector orientation.
- Unscrew the motor mounting bolts and carefully remove the motor from the gearbox or rail carrier.
- Compare the old and new units to ensure matching mounting points and gear engagement.
- Install the new motor, secure fasteners, reconnect the electrical connector, and cycle the sunroof to check operation before reassembling trim.
- Lubricate rails and sliding parts as recommended by the vehicle manufacturer and perform any required sunroof initialization or adaptation procedure by cycling the roof fully closed and open.
Installation Recommendations
Always follow manufacturer procedures and use appropriate tools. Check the condition of the sunroof rails, cables, and seals when replacing the motor; cleaning and lubricating the guide rails can prevent immediate repeat failure. Verify fuses and switches if symptoms persist after motor replacement. After installation, test full travel in both directions and listen for unusual noises; adjust mounting if necessary.
Why The Part Most Often Fails
Sunroof motors typically fail due to mechanical wear (worn brushes, worn gears), water ingress and corrosion, or jamming caused by debris and lack of lubrication in the guide rails. Repeated heavy use and aging insulation can also lead to electrical faults or connector corrosion. Addressing rail alignment and lubrication during replacement reduces the chance of premature failure.
Notes For Buyers
Search by product codes 0390200072, 8401NC or 1607362980 to locate matching listings. The motor is intended for Citroën C4 Picasso applications; confirm physical compatibility with the vehicle’s sunroof assembly before installation.
