Specific wiring for retrofitting the original headlight washer system in the following vehicles: VW Golf 5 / Golf 5 Plus VW Jetta VW EOS 1F VW Passat 3C VW Scirocco up to model year 2009 VW Sharan 7N VW Touran 1T VW Tiguan 5N Audi A3 8P / 8PA / Cabrio Audi TT 8J Seat Alhambra 71 This wiring connects the boardnet control unit to the high-pressure pump (engine compartment), the water level sensor (engine compartment) and the instrument cluster Scope of delivery: Wiring Relay Notes: The HWS system must be activated via diagnosis (boardnet control unit)