Audi A3 2005 P8 water cooler.

[Gavin]

IM trying to bleed the water coolant system,
the car run fin till I replaced the coolant now when I run it for a while to gerbils/ bubbles

there is an air lock and I cant get it out, is there a screw I can loosen to let air out?

 

[Uwe]

It might be useful of you told people what engine this car has.

-Uwe-