calbear92

Back in 2017, I was disappointed that Audi elected to remove the red warning light on the edge of the inside of the door. I retrofitted OEM Audi parts source kit from a member here in Canada named Eric. He's a good guy (and at the time, sold another OEM sourced parts kit to add a second trunk light in the A4). The original thread: https://www.audiworld.com/forums/aud...b9-a4-2915685/

When it was time to turn in my leased A4, the same issue popped on the 2018-2020 Q5, as well as my latest edition to the stable eTron. It just didn't look right- esp for an almost $86k vehicle. After eyeballing lens size on the A4, Q5, and eTron, they appeared to be the same. So that got me to think- perhaps, I could remove the red lighting kit from the A4 and move it into the eTron.

Although taking a door panel off isn't that big of a deal, I'd rather not if I didn't have to. I did not for the A4 or Q5 and was not planning on doing this to the eTron either.


Be careful to remove the existing red reflector. Using a small flat screwdriver, carefully lift the top edge of the light off. The plastic clip tabs on it are very easily broken. The eTron door panel Prestige has actual substantial sound deading padding insdei the door panel- unlike the Q5 or A4.

The same for the white puddle lights- these tabs seem to be more robust and resistant to breaking as easily. Unclick, the puddle light bulb housing from the wiring harness. Be care of the Audi ring puddle- if they have been illuminated for a white- the metal projector part can get very HOT- ask me how I know. Doh!

Taking the OEM sourced wiring harness from @eykp (my 4th OEM kit from him), I secured 1 end with the OEM wiring connector to my wiring fish rod. With a little patience, you should be able to thread it from the vertical door opening (reflector side) down thru the door panel to the puddle light opening (or up from the puddle light). Take your time and it should be fairly straight forward without causing any snags/damage. Once you've reached the puddle light opening, you should be able to hold one end of the harness and unwrap the connector (or simply withdraw it and holding the wire with the other hand).

Click the wiring harness to the car side plug and the other end into the puddle light. Replace the puddle light.

Lastly, click the OEM Red light to the wiring harness at the vertical door opening and then, gentle, but firmly insert the red light housing upwards (wires facing up was easiest for me on all but the 1st door) and then attempt to put the top edge into the opening. Nice and easy fit- unlike the Q5 which was supremely tight.

A4 Phil

@calbear you did that eight times for your two 'trons? You were a man on a mission. Looks good.

Argus2018

Where did you get the kit for the reflector lights? The link provided is no longer active. thx

A4 Phil

Article Link: DIY: 2018-2020 Q5/SQ5 and B9 A4 Retrofit Real Red Door Edge Warning Lights - AudiWorld Forums

Original Link: DIY: Add red door warning light and remove door panel B9 A4 - AudiWorld Forums

The lights are available for purchase from AudiWorld user @ekyp