For some reason, the Coupe's headlight washer jets are prone to disappearing. If you ask your local Audi dealer for replacements, he'll have you buy the entire washer assembly for ~$100, and you'll have to have it painted to match the bumper. Thankfully, there is an alternative: You can buy the headlight washer assembly for a Canadian '96 VW Passat for ~$30, then pull out the little black jets, and plug them right into your existing empty assembly! The P/Ns are:
3A0 955 101 = Left side washer jet
3A0 955 102 = Right side washer jet
