Right so here goes, finally!
Firstly, big thanks to Stokeballoon and Robin, as Stokeballoon provided the wiring pin locations on the new 2010+ module and the part numbers for the LED TTRS Footwell lights and repairs wires needed, and Robin made the looms and ordered the parts for me. Top guys both of them!
So, as some of you may the know the central electric module changed in 2010 and as such the modules location, type and wiring all changed from earlier A/S3's. Also the TTRS came out with LED footwell lights as standard and these are the same size fitment as the A/S3 ones. So this is how to fit OEM LED foot well lights to a 2010+ A/S3.
This is a close up of the OEM LED footwell lights (standard on TTRS):
Loom and parts as supplied by Robin:
Firstly follow Robins instructions above to remove the drivers side knee panel which gets you to this point:
Stick your head up and you will see this module (lots of little relays on the front), its just to the left of the fusebox:
Now if you stick your head right under this module and look underneath/behind it you will see 3 x big 52 pin connectors:
So you have black, white and yellow. We need the middle white connector, so press in the little tang, and pivot down the locking bar and pull out the connector:
So we now need to remove the outer casing of the connector so we can get to the pins, do this buy cutting the zip tie at the top:
and press in the two tangs that hold the pin block to the outer casing, slide off the outer casing:
Once off you are left with the outer case and the pin block:
Now we need to insert the feed (+ve) from the footwell light loom into PIN 50. This is the 3rd pin up from the bottom on the left side (next to the blue/white wire on the pic above), but all the pins are numbered on the outside of the pin block, so its easy to find which is the right pin, again PIN 50 is what you need. The pin will only slide into the box one way, thats the right way.
Once you have put in the pin, slide the outer cover back over the connector and click it in to place. If you like you can also replace the zip tie but I did not bother as its solid without it. So thats the feed sorted, now just for the earth. I used a bolt up near the fuse box here:
Then as long as you have done the VCDS coding (see below for that) you should have light once you close and open the door!
I then slid the RNS-E forward, to allow me to push the other side wire/light across, and then dropped the glovebox to pull it through and put the light into place (see Robins instructions above for removing glovebox etc) Pass side done:
Then as above refit the the drivers side knee panel and then its all done:
With regard to VCDS coding, if you are fitting LED lights you need to change it in 2 places in Module 09. Byte 20, Bit 0 and Byte 25, Bit 3:
Make sure you tick the LED monitoring inactive if you have fitted LED ones otherwise you will get bulb errors.
Some final pics:
So thats its soft start/stop OEM LED footwell lights fitted to a 2010 S3.
Any questions let me know!
