Description
Radio and on-board computer display for PEUGEOT 407. Some functions may need to be activated using diagnostic equipment.
Replacement display for the radio and driver information system tailored for Peugeot 407. This unit shows audio source information, track and radio station data, on-board computer readouts (trip, average consumption, range), clock and some vehicle settings. The display is often sought by repair professionals and DIYers by its product codes (9666628180, 659349, 9821852480). Supplied as a direct-fit component for the dashboard; some features may require diagnostic activation or configuration after installation.
Technical Information
- Manufacturer: Stellantis (Peugeot/Citroën)
- Model: Peugeot 407
- Product Codes: 9666628180, 659349, 9821852480
- Other Numbers: Additional OEM or supplier references may exist under the codes listed above
Installation Recommendations
Before starting work always disconnect the vehicle battery and follow the manufacturer’s removal procedure to avoid damaging the unit. Typical replacement steps:
- Disconnect the negative battery terminal.
- Remove dashboard trim panels surrounding the radio/display (use appropriate trim tools to avoid damage).
- Unscrew and slide out the radio unit to access the display connectors.
- Carefully disconnect ribbon and multi-pin connectors from the display (note locking tabs).
- Fit the replacement display, reconnect connectors and check mechanical seating.
- Reassemble panels and reconnect the battery.
- Perform diagnostic activation or configuration if required to enable specific functions.
For activation or enabling of functions we recommend using PSA diagnostic tools (DiagBox/Lexia) to configure the on-board computer settings correctly.
Why This Part Fails Most Often
- Backlight failure or fading caused by aged LEDs or power-supply components.
- Pixel damage, dead segments or display fading from prolonged heat exposure.
- Connector corrosion or poor contact due to moisture ingress or loose fitment.
- Internal solder joint cracks or degraded capacitors on the display driver board.
- Software or configuration issues where certain functions are disabled until activated by diagnostic equipment.
Notes For Mechanics And DIYers
This display is suitable for workshop replacement and for experienced DIY owners. Keep reference to the product codes when searching or ordering to ensure correct fitment. If functions are missing after installation, perform a diagnostic session to enable the features and verify communication between the radio/display and the vehicle bus.
Fast search tip: Use OEM codes 9666628180, 659349 or 9821852480 when locating this unit for Peugeot 407 to improve search accuracy and ensure correct spare part selection.
