This replacement display is designed for Citroën C4 first-generation vehicles and is commonly referenced by part numbers 9659062780 and 6155FW (also found as 6155FX / 6155GX). Ideal for professional workshops and experienced DIY mechanics, the unit restores clear information readout for radio menus, trip computer and driver information. Correct fitment ensures full functionality of the factory radio and onboard computer display, improving user experience and maintaining vehicle appearance.

The display is a direct-fit component for vehicles equipped with the 6155-series radio/telematics cluster. It is often searched by its OEM codes, so including the part number in searches will increase the chance of finding the correct replacement quickly. The unit is suitable for repairs where the original screen shows dead pixels, faded backlight, distorted characters or intermittent communication with the radio head unit.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C4 I (First Generation)
• Product Codes: 9659062780, 6155FW, 6155FX, 6155GX
• Other Numbers: Commonly referenced in parts lists and labels as 6155FW | 9659062780

Installation Recommendations

Installation should be performed by a trained technician or an experienced DIYer with appropriate tools. Recommended steps:

• Disconnect the negative battery terminal before starting to prevent short circuits and protect vehicle electronics.
• Remove surrounding trim panels carefully to avoid breaking plastic clips. Use trim tools to prevent damage.
• Unscrew the radio/display assembly fixing screws and slide the unit forward to access connector plugs.
• Release the locking tabs on the multi-pin connectors and unplug them; handle ribbon cables gently to avoid creasing or tearing.
• Swap the old display for the new unit, reconnect all plugs and secure the assembly. Refit trim panels and reconnect the battery.
• After installation, verify display illumination, menu navigation, and that the on-board computer information displays correctly.

Most Common Failure Reasons

Display failures on first-generation Citroën C4 vehicles typically occur due to age-related factors and environmental stress. Common causes include:

• Backlight degradation or failed LEDs causing dim or uneven illumination.
• Cold or cracked solder joints on the display controller or connection points leading to intermittent operation, often worsened by vibration and temperature cycles.
• Damaged ribbon cables or connector pins from improper handling during previous repairs or removal.
• Moisture ingress or contamination causing corrosion on contacts and PCB traces.

On vehicles older than a decade, degradation of components and repeated thermal cycling make display faults more likely. Replacing the display restores readability and reliable operation when the failure is limited to the screen assembly.

Replacement display unit for the radio and trip computer designed for Citroën C4 first generation. This unit is commonly searched by part numbers 9664222180 and 6155FX (also referenced as 6155GX, 6155FW). Ideal for Professional Mechanics And Experienced DIYers who need a direct-fit display to restore readability and functionality of the dash information system. The display restores essential functions such as radio information, clock, trip computer readouts and on-screen status icons, improving driver feedback and safety.

Key Benefits

• Direct Fit For Citroën C4 I With Original Connector Layout
• Restores Radio And Trip Computer Readability
• Often Found By Part Number Searches 9664222180 / 6155FX
• Useful For Garage Repairs, Bodyshop Replacements And In-Depth Dashboard Restorations

How Replacement Works

Replacement Is Straightforward For Workshops: After ensuring the Vehicle Is Secure And The Battery Is Disconnected, remove the trim pieces around the center dash, undo the mounting screws or clips securing the display module, carefully unplug the ribbon and power connectors and swap the units. Before reassembly, test All Functions Including Radio Display, Clock, And Trip Computer Messages To Confirm Proper Operation.

Installation Recommendations

• Always Disconnect The Battery Before Starting Work To Avoid Short Circuits Or Damage To Electronic Components.
• Use Appropriate Trim Tools To Avoid Breaking Clips And To Protect Interior Surfaces.
• Take Care With Ribbon Cables And Connectors; Do Not Bend Or Crease Flex Cables Excessively.
• Test The New Display Before Final Reassembly To Ensure All Icons, Backlight And Communication With The Head Unit Or BCM Are Functional.
• If The Display Does Not Power On Or Shows Partial Information, Recheck Connector Seating And Fuse Circuits Related To The Infotainment/Instrument System.

Why The Part Typically Fails

Display Failures On Citroën C4 First Generation Are Most Common On Older Vehicles Due To Prolonged Exposure To Heat, Temperature Cycles And Moisture. Typical Faults Include Backlight Loss, Dim Or Dead Pixels, Intermittent Connections In Ribbon Cables, Corroded Connector Pins And Solder Joint Failures On The Display PCB. Mechanical Damage From Accidents Or Improper Removal Can Also Cause Permanent Failure.

Practical Tips For Diagnosis

• Confirm Power And Ground At The Unit Before Replacing The Display To Avoid Replacing A Good Part.
• Intermittent Problems Often Point To Connector Or Solder Issues Rather Than The LCD Panel Itself.
• When Replacing The Unit, Keep The Old Part For Reference On Connector Types And Mechanical Fixings.

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën C4 First Generation (C4 I)
• Product Codes: 9664222180, 6155FX
• Other Numbers: 6155GX, 6155FW

Keywords For Search Engines And Workshops: Citroën C4 Display, 9664222180, 6155FX, Radio Display, Trip Computer Display, Dashboard Display Replacement, C4 I Display.