Hello! Have the following problem: When I operate the windscreen wiper system hardly comes to water at the windscreen, while the headlights are literally flooded. I closed the hose to the headlights because I hoped for more pressure in the system and therefore also on the windshield. Unfortunately, but without success! Can it be that the hoses are to be from inside? I also found that it always takes about 2-3 sec. until even water comes out of the nozzles to then slowly build up a weak water jet so gradually. Has the Saab actually installed a check valve, if yes, and could it be that, this possibly is clogged??? Greeting Floppe