Installation guide for headlight relay upgrade kits (Lichtupdate Paket) from Audi 100-online.de
This instruction describes the installation of the headlight update kit for the following vehicles:
For the 1988-1994 Audi V8 (type D11), the installation guide can be found at the FAQ on audiv8.com.
Both headlight update kits can be obtained at Audi 100 online Shop -> http://shop.audi100.net.
Depending on your vehicle & personal skills, installation is an easy job that can be done within 30-60min.
Caution: disconnect battery first!
The headlight update kit integrates fully into the existing wire loom between headlight switch and fuse box.
Bottom view of fuse box and multiple connector locations.
Installation & wiring:
Open the hood, locate the fuse box near the firewall and remove fuse box cover.
If you want to attach relays to the aux-relay panel #1, remove driverīs side panel. There are 8mm Hex bolts on Type 44 cars and some Philips type bolts on Audi 80/90 that has to be removed. After removel of the shelf, you may also want to remove the footwell heater channel on Type 44 cars, in order to gain better access to relay panel (2 Philips type bolts left & right).
Locate one or two (depending on what headlight kit you use) empty brackets on top or bottom row of relay carrier, attach headlight relays and move cables towards fuse box opening.
Driverīs side aux-relay panel #1 with headlight relay
Carefully grab all relay kit wires and pull them firmly until you have enough room to work.
Pull out both red & brown multi connectors simultaniously from the fuse box. You have to lift up the release clamps on both sides with a flat bed screwdriver first. Then seperate the connectors from each other (see photo below)
Praise out the securing cap on brown connector (F) and open the housing.
Remove yellow wire (coming from low beam switch) out of the connector housing
Connect yellow cable from update kit with the released yellow cable from the fuse box.
Push red cable from update kit (with yellow colour ring) into brown multi-connector on exactly the same location, where the yellow cable was before.
You can either attach brown ground cable(s) (Pin 85 on relay kit) on one of the 4 bolts that hold the fuse box frame, or you may use any other chassis bolt within range for a proper ground connection (photo below).
Constant power supply from pin 30 will be connected to contact area L on fuse box (photo below).
Now the low beam is done - time for a function test.
High beam wiring:
Locate red multi-pin connector I in the back of the fuse box, near yellow multi pin connector and pull it out, after releasing the securing tab.
Open connector housing (see above) and remove white/black cable I56a coming from the high beam switch.
Now all the wiring is done!
After putting everything back into place, you may want to check you headlight again.
Question and remarks regarding the headlight upgrade kit could be send to: firstname.lastname@example.org
Let there be light!