Hi I have searched (a lot) for the location of the load reduction relay on my Audi A4 2002 2.0 saloon Can anyone point me to diagram that shows it? Mine only has 4 relays under the dash. From what I can see the number of the relay is 18 I don't have a no.18 relay under the dash. The problem is my Horn, wipers, windows, indicators and cigarette lighter have all stopped working. When I start the car the lights, cig lighter ect. don't do out, which I though was the function of this relay. Please help. P.