Description
Electric motor for sunroof (sliding roof) and sunshade for Citroën C4 Picasso vehicles.
Product Overview
This Bosch electric motor is designed for the sunroof and sunshade mechanism of the Citroën C4 Picasso. Commonly searched by part numbers 0390200072, 8401NC and 1607362980, this unit replaces the drive element that opens, closes and parks the glass panel and internal sunshade. The robust design from BOSCH ensures reliable operation when mounted and connected correctly.
Function And Fitment
The motor powers the sunroof glass and the sliding sunshade, converting electrical energy into the linear/rotational motion required by the sunroof regulator assembly. It is intended for Citroën C4 Picasso models equipped with a powered sunroof. Technicians and DIYers often look up this part by its product codes (0390200072 / 8401NC / 1607362980) when diagnosing a non-functioning sunroof.
Technical Information
- Manufacturer: BOSCH
- Model: Citroën C4 Picasso
- Product Codes: 0390200072, 8401NC
- Additional Numbers: 1607362980, 390200072
Installation Recommendations
Before starting work, always disconnect the vehicle battery and follow the vehicle manufacturer’s removal procedures to avoid electrical damage and accidental operation. Typical replacement steps are: remove interior trim/headliner to access the sunroof unit; disconnect the electrical connector; unbolt the motor from the sunroof regulator; transfer any brackets or adapters if required; fit the new motor and verify smooth movement of the mechanism before reassembling the interior. Check and lubricate the guide rails and regulator points with a suitable, manufacturer-approved lubricant. Test the full travel and electrical circuit (fuses, relays, switches) prior to finishing the installation.
Why This Part Fails Most Often
Sunroof motors usually fail due to a combination of mechanical wear and environmental exposure. Common causes include worn motor brushes and bearings, stripped plastic or metal gears, water ingress from blocked sunroof drains causing corrosion, binding of the regulator or tracks that increases motor load, and connector corrosion or intermittent wiring. Symptoms to watch for are slow movement, grinding or clicking noises, intermittent operation, or complete loss of function.
Practical Tips For Diagnosis
- Listen for motor noise when operating the switch—no noise may indicate electrical fault upstream (fuse/relay/connector).
- If the motor runs but the sunroof does not move, inspect the regulator gears and cable assembly for damage.
- Check sunroof drains and seals regularly; clogged drains often lead to water-related failures.
- After replacing the motor, cycle the sunroof through full travel to ensure correct alignment and that limit/position switches function correctly.
Search And Identification
This motor is frequently searched by its part numbers: 0390200072, 8401NC and 1607362980. Including these codes in your search or parts order speeds up identification and helps ensure you receive the correct unit for Citroën C4 Picasso sunroof systems.
