Description
Electric motor for sunroof (tilt-and-slide), sunshade for Citroën C4 Picasso
Product Overview
This Bosch electric motor is designed for the sunroof (tilt-and-slide) and internal sunshade of the Citroën C4 Picasso. Supplied with original product references (0390200072 / 8401NC), it is a direct-fit replacement for vehicles equipped with an electric roof system. Durable construction and precise gearing ensure smooth operation of both the glass panel and the retractable sunshade, restoring comfort and proper function to the vehicle’s roof assembly.
Applications
Intended For: Citroën C4 Picasso models fitted with an electric sunroof mechanism. Ideal For Automotive Technicians And DIY Enthusiasts Looking For A Reliable Bosch Replacement Motor. Frequently Searched By Product Number (0390200072, 8401NC, 1607362980).
Technical Information
- Manufacturer: Bosch
- Model: Citroën C4 Picasso
- Product Codes: 0390200072, 8401NC
- Additional Numbers: 1607362980
- Category: Electrical Components | Electric Motors
How The Part Works
The motor drives the sunroof geartrain and the sunshade mechanism via an integrated gearbox. When the roof switch is activated, the motor converts electrical input into controlled rotational movement to open, close or tilt the glass panel and to extend or retract the sunshade. Limit switches or internal clutch mechanisms stop travel at end positions to protect the mechanism.
How To Replace
General Replacement Steps (Basic Guideline):
- Disconnect The Battery Before Starting To Prevent Short Circuits And Avoid Damage To Electrical Components.
- Remove Interior Trim And Headliner Sections Necessary To Access The Sunroof Assembly Following Manufacturer Procedures.
- Disconnect The Electrical Connector From The Motor And Note Cable Routing.
- Unbolt The Motor From The Sunroof Housing; Some Systems Require Removal Or Partial Disengagement Of The Gear Carrier.
- Install The New Motor In Reverse Order, Ensure Proper Engagement Of Gears/Drive Cables And Reconnect The Electrical Connector.
- Test Sunroof And Sunshade Functions For Smooth Operation And Correct End Stops Before Reassembling Trim.
Installation Recommendations
- Work On A Cold, Dry Vehicle And Use Protective Covers To Prevent Interior Damage.
- Always Disconnect The Battery Prior To Electrical Work.
- Follow The Vehicle Manufacturer’s Removal Procedure For Headliner And Trim To Avoid Breakage Of Clips And Fasteners.
- Check For Water Ingress Or Corrosion In The Roof Channels; Clean And Lubricate Slide Rails If Required.
- After Installation, Verify That The Sunroof Opens, Closes And Tilts Smoothly And That The Sunshade Tracks Correctly.
Why This Part Fails Most Often
- Wear Of Internal Brushes Or Bearings Causing Loss Of Power Or Intermittent Operation.
- Gear Wear Or Stripped Teeth Within The Motor Gearbox Leading To Slippage Or Jamming.
- Water Ingress Or Corrosion From Blocked Drain Channels Allowing Moisture To Reach The Motor.
- Overloading From Obstructions In The Sunroof Track Causing Motor Overheat Or Burnout.
- Electrical Connector Corrosion Or Wiring Faults Resulting In Poor Supply Or Intermittent Contact.
Notes For Professionals
This motor Is Suitable For Technicians Who Expect A Direct-Fit Replacement Using The Given Product Numbers. When Diagnosing Sunroof Faults, Inspect Track Condition, Drainage, And Wiring In Addition To The Motor To Prevent Repeat Failures.








