Audi Q5   General maintenance  Checking and topping up fluids
The container contains the cleaning fluid for the windscreen and the headlight washer system* Fig. 1. Container capacity: Link
You should top up with distilled water to prevent scaling on the washer jets. Always add washer fluid to the water (with anti-freeze additive in winter).
Caution!
  • Never put in radiator anti-freeze or other additives.
  • Never use washer fluid which contains paint thinners or solvents as it can damage the paintwork.