zcct04

When I turn on the washer, the wipers take off immediately and the driver's side blade usually makes it all the way up to the A pillar before any liquid comes out of the squirter. Dry blades jumping and hopping across a dry windshield sounds like crap - not a class act. Is this normal? I don't recall it happening in the past. . .

m a x i m u s

Are you low on fluid?

zcct04

Fluid level is fine, and once the system starts spraying it pumps volumes. It just takes a long time to get started.

Is there any sort of a check valve in the system that keeps the lines filled with fluid after each use?

Richard Rickard

Mine does the exact same thing. I very rarely use the windshield wiper fluid so it might because after a while the fluid in the lines drain out back into the tank? Not sure

Gonna test it with using the fluid twice on the same trip

larrypmyers

As a result of your post, the next time I drove my GLC I checked mine out. Result...washers and wipers come on simultaneously.

JonMBZ

I think this is normal, my car does it too. I think the problem is gone when MB introduced magic vision control.

El Cid

One thing about blades is that many people don't clean them when they clean the windshield. I use the towel I clean the windshield with to wipe the blade. Pull the blade up and run the towel over it. Then wipe the windshield area under where the blades sit.

ZephyrAMG

My car does this too. The wipers move before the fluid sprays. I just live with it.

Clark Kent

Mine behaves the same way. Then I try to time the next washer spray as the blades are traveling downwards, about 3/4 of the way across the windshield. Usually takes two tries to get it right 😊

Gazwould

Same too with added scratches because of the delay .

Might fit a Sprint Booster to the washer pump