Ford Fiesta Mk7 Rear View Interior Mirror Auto Dim Mondeo Mk4 AU5A17E678AD

The Ford Fiesta Mk7 / Mondeo Mk4 auto-dimming interior rearview mirror is an original cabin accessory, designed for installation in the rear of the vehicle. Auto-dimming improves driving comfort after dark by reducing glare from following vehicles and increasing visibility.

Specifications and technical data

• SKU: AU5A-17E678-AD
• Mark: Ford
• Condition: Used
• OEM Part Number: AU5A-17E678-AA
• Substitutable numbers: AU5A-17E678-AA, BG
• Location on the vehicle: Rear
• Category: Rear View Mirrors

Characteristics and purpose of the mirror

The Ford Fiesta Mk7 / Mondeo Mk4 auto-dimming rearview mirror was designed as a factory-fitted rearview mirror. The photochromatic working surface automatically adjusts the tint, improving safety when driving at night and in heavy traffic.

This solution is particularly beneficial for drivers who regularly travel country roads and highways, where frequent glare from rear-view lights can impair concentration. Using an original interior mirror allows for visual cohesion with the rest of the interior and proper integration with the vehicle's wiring.

Construction and auto-dimming function

A photochromatic interior mirror uses a light sensor and a layer that responds to the intensity of light from behind the vehicle. In practice, this means:

• reduces glare from the headlights of vehicles behind you,
• increases the readability of the image in the mirror without the need to manually change the position,
• stabilizes the driver's visual comfort during long night journeys.

Positioning the vehicle in the rear of the cabin provides an optimal viewing angle and proper coverage of the field behind the vehicle, as specified by the manufacturer.

Technical condition and benefits of choosing a used item

The mirror offered is a used Ford rearview mirror, meaning it comes from a dismantled vehicle but retains the functionality intended by the manufacturer. Choosing an original, used component offers both technical and economic advantages:

• factory fit for mounting and installation in a given model,
• consistent appearance with the dashboard and other interior elements,
• lower purchase cost compared to a new element while maintaining proper functionality.

Used condition is a good compromise for drivers who expect original build quality and proper operation of the auto-dimming system, while optimizing their vehicle maintenance budget.

Why is it worth choosing an original Ford rearview mirror?

When it comes to components that affect rear visibility, it's crucial to maintain the manufacturer's specifications. A genuine Ford interior rearview mirror provides:

• correct geometry of the field of view, consistent with the body design,
• stable mounting and proper cooperation with the windscreen and headliner,
• maintaining the factory standard of safety and ergonomics of operation.

This solution is especially recommended for accident repairs, replacing a damaged mirror or restoring a vehicle to its original equipment specifications.

Other Ford Rearview Mirrors and How-To Materials

If you are also looking for other rear-view mirrors for Ford, check the available models in the rear-view mirrors for Ford category to choose the element best suited to the specific body version and equipment of your car.

When considering buying used interior components, it's worth understanding the general principles of selecting and using such parts. You'll find practical tips in our article on used car parts and ways to combine style with savings , which will help you plan your vehicle repairs and upgrades wisely.