It's in the neck of the filler.But the mesh sometimes gets clogged, & you can't fill the bottle. prize the filter out with a screwdriver & soak it in washing up liquid, then gently scrape off all the algie & gunge from both sides of the mesh. you must get it all off otherwise it grows back !!!!
How do I change the oil filter on an Audi A4 Diesel 2007
It is not a motor- it is a pump. Located at the bottom of the washer tank.
is your a4 diesel ?
audidiy.com
The windshield washer system
Audi A4 2.8 1994-2001 engine code AAH quantity including filter 5.0Ltrs
behind the glove box
5.8 qts with an oil filter
Remove skid plate, it is to the left in front of the engine.
B7 Audi A4 C6 Audi A6 ~200kg
What oil does an Audi A4
Over by the air filter's box.