Specific wiring harness for retrofitting a headlight washer/wiper system for the following vehicles: Audi A1 GB Audi A4 8W Audi A5 F5 Audi Q5 FY Audi A6 4A Audi A7 4K Hardware parts such as washer nozzles, hose, pump, etc. will also be required. If the bumper does not have an opening for the nozzles, the bumper must also be replaced. Scope of delivery: Wiring harness Note: The required coding is carried out using dongle 48328 Checking the compatibility of the on-board control unit