I can hear the mechanism working (pump) but it only works the first time I go out in the morning, Neither the front or rears work (they didn't work too hot to begin with) and this is quite annoying, barring another visit to the dealer. Does anyone know how to gain access to the tank? I am sure there is a clog.

Many thanks. Peter

 

You can gain access to the tank and pump by removing the front fender lining. I forget which side is for the windshield and which is for the headlights. It does not take any wrenches to remove the pump, and all the hoses are press fit.

 

Mine is UK spec, RHD, I will inspect the LH side where the tank is and see whats what, thanks! peter

 

Container is leaking, have to get BMW to pay for a newbie. Peter