Installation guide: How to replace the mirror caps on your Audi A4 B9

Duration: 30 minutes

Tools needed: Plastic flat lever

Replacing the mirror housings on your Audi A4 B9 It's a simple and quick operation, provided you follow the correct steps. Browse our installation guide Step-by-step guide to successfully completing this operation without any headaches.

We offer mirror covers in our shop in a variety of finishes. glossy black , matte silver And Carbon fiber , made of ABS, the same materials as your original OEM parts.

Discover our entire catalog for Audi A4/S4/RS4 B9

Two installation methods are indicated, depending on whether your vehicle is equipped with Side Assist (blind spot assist) or not.

For Audi without the Side Assist (Blind Spot Detection) function

1. No removal of the mirror glass is necessary.

There are no screws on the mirror housings, they are simply held on by clips.

2. Unclip the covers

Use your plastic pry tool to unclip the rearview mirror cover from its frame. Start on the outside and work your way towards the inside of the car:

Image from AudiWorld

For Audi with the Side Assist function (Blind Spot Detection)

1. Removing the rearview mirror glass

- Adjust the mirror glass as much as possible inwards using the mirror adjustment motor.

- Using the plastic tool, pry the glass off. Be careful to apply force as close as possible to the retaining clips (i.e., in the center) and not to force it too much at the edge, as this could break it:

- Once the glass is unclipped, carefully detach the heating and auto-dimming wires, and set the mirror glass aside.

2. Access to the screws

Two Torx T10 screws hold the mirror covers in place, as illustrated below:

Images from AudiWorld

3. Separation of the rearview mirror cover

Use your plastic pry tool to unclip the rearview mirror cover from its frame. Start on the outside and work your way towards the inside of the car:

4. Unclip the Side Assist connector and indicator light

Installation of the new rearview mirror covers

Proceed in the reverse order of disassembly:

1. Side Assist

Reinstallation of the blind spot indicator and its connector on the new mirror housings.

2. Attaching the rearview mirror covers

Place the mirror cover in position and push it firmly to engage the clips. Secure it with the two screws you removed.

3. Reconnecting the wires

Connect the heating and auto-dimming wires to the rearview mirror glass. Ensure that the two plastic grooves on the mirror fit into the metal clips inside the mirror housing.

4. Securing the rearview mirror glass

Push the ice firmly with the palm of your hand to reconnect it to the motor, pushing from the center of the ice.

5. Verification

Check that the mirror adjusts as usual and you're all set.

Here is the Audi schematic of the rearview mirror assembly with its housing:

You now have all the necessary information to Replace the mirror caps on your Audi A4 B9 . By following these steps, you can perform this operation quickly and easily, whether or not your vehicle is equipped with the feature. Side Assist .

If you're looking to further personalize your Audi, feel free to visit our shop to discover our range of performance accessories for your car.