Description
Interior rear-view mirror with automatic dimming for Peugeot 407 vehicles
This interior auto-dimming rear-view mirror is designed to restore comfort and safety in nighttime driving by automatically reducing glare from following vehicles. Ideal for professional mechanics and competent DIYers, the mirror is a direct-fit replacement for Peugeot 407 applications where automatic dimming and original-style mounting are required. The product is often searched by reference codes, so including those numbers in your listing helps customers find the correct part fast.
The mirror uses an electrochromic dimming element to darken the glass when bright light is detected from behind, improving night driving comfort and reducing eye strain. It keeps the original cabin appearance and electrical functionality on vehicles equipped with factory auto-dimming mirrors. Typical buyers include repair shops, car electricians and owners performing a straightforward interior trim and glass-mounted replacement.
Technical Information
- Manufacturer: Stellantis, Citroën, Peugeot
- Model: Peugeot 407
- Product Codes: 8149ST, 8149XK, 8149XN
- Other Numbers: —
Installation Recommendations
Installation is normally performed with basic trim tools and an assistant for safety. Typical replacement steps:
- Carefully remove the interior trim cover around the mirror base to access the mounting and wiring.
- Disconnect the electrical connector for the auto-dimming function before removing the mirror.
- Release the mirror from its mounting—on many Peugeot 407s the mirror slides off a bracket or is fastened with a small retaining screw or clip. If the mirror is bonded to a windscreen button, remove the mirror from the button and prepare the glass for a new adhesive if needed.
- Clean the mounting area and, if replacing a bonded button, use a dedicated windscreen mirror adhesive and allow the recommended curing time before attaching the mirror housing and reconnecting wiring.
- Reconnect the electrical connector, refit trim, and test the auto-dimming function in varying light conditions to confirm operation.
Use manufacturer-approved adhesives and avoid excessive force when handling the glass and trim. If unsure about bonded mounts, a professional glass/trim service can install the mounting button and adhesive to OE standards.
Why This Part Most Often Fails
- Electrical Faults: Moisture ingress, corroded contacts or wiring issues can prevent the electrochromic cell from receiving power and functioning correctly.
- Impact Damage: Side collisions, door impacts or interior strikes can crack the mirror glass or break mounting points.
- Component Ageing: Over long service life the electrochromic layer or internal sensors can degrade, reducing dimming responsiveness.
- Poor Previous Installation: Incorrectly bonded mirror buttons or damaged connectors from prior repairs can lead to early failures.
Replacing the mirror with a correct-code unit restores original functionality and eliminates glare-related discomfort. The inclusion of explicit product codes in the listing helps ensure fast identification and correct ordering for technicians and DIY customers.
