Description
Interior Rear-View Mirror For Citroën C4 And Peugeot 307
Automatic Dimming
Description
High-quality interior rear-view mirror designed for Citroën C4 and Peugeot 307 with automatic dimming function. This electrochromic mirror reduces glare from trailing headlights automatically, improving night-time visibility and driver comfort. Ideal for professional garages and DIY enthusiasts who search by part codes 8149EZ, 8154JX or 8149XG.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4; Peugeot 307
- Product Codes: 8149EZ, 8154JX, 8149XG
- Other Numbers: N/A
Compatibility And Fitment
Fits Citroën C4 and Peugeot 307 original interior mounting points. Confirm fitment by comparing product codes and the mirror mounting style on the vehicle (windshield-mounted bracket or mirror foot). This mirror is intended as a direct replacement for factory-equipped automatic-dimming units on compatible models.
Function And Typical Failure Modes
The mirror uses an electrochromic element controlled by an internal light sensor to automatically dim when bright lights are detected from behind. Common reasons for failure include mechanical damage from impact, corrosion or poor contact at the electrical connector, moisture ingress into the electronics, and gradual degradation of the electrochromic element or sensors due to age and temperature cycles.
How To Replace
Replacement is suited to experienced technicians and competent DIYers. Typical procedure:
- Park the vehicle on a level surface and switch off ignition.
- Disconnect the negative battery terminal when working with electrical components to avoid short circuits.
- Remove any trim covers around the mirror base. Most mirrors slide off a small bracket or are retained by a screw or clip—release the fastener and slide the mirror off the mount.
- Disconnect the electrical connector carefully—avoid pulling on wires. Inspect connector and wiring for corrosion or damage.
- Fit the replacement mirror by reversing the steps: connect the wiring, mount the mirror on the bracket until it locks, reinstall trim and fasteners, then reconnect the battery.
- Test the dimming function in low-light conditions and verify there are no warning messages on the instrument cluster.
Note: If the mirror foot is bonded directly to the windshield, replacement may require special tools or adhesive and, in some cases, professional re-bonding of the mount.
Installation Recommendations
- Use soft plastic trim tools to avoid scratching headliner and trim.
- Always disconnect the battery before handling electrically powered mirrors.
- Inspect the mirror mounting pad and windshield bracket for cracks or adhesive failure; replace or rebond as necessary.
- Check wiring harness and connector pins for corrosion—clean contacts with contact cleaner if needed and ensure a secure fit to avoid intermittent faults.
- After installation, verify automatic-dimming operation and ensure sensor faces are free of obstruction or adhesive residue.
Why This Part Most Commonly Fails
- Impact damage from collisions or heavy objects hitting the mirror.
- Electrical connector corrosion or damaged wiring leading to loss of power or signal.
- Moisture ingress into the electronic module causing intermittent or permanent failure.
- Age-related degradation of the electrochromic element and sensors, especially in vehicles exposed to extreme temperatures or direct sunlight.
Order this automatic-dimming interior mirror by referencing product codes 8149EZ, 8154JX or 8149XG to ensure quick identification and compatibility with Citroën C4 and Peugeot 307 models.
