ML 320 Wiper Fluid

[mdante]

I have a 99 ML 320 and all of a sudden I can't get the wiper
fluid to come out. The tank is full and the wipers work fine.
When I pull the lever it sounds like it is trying to pump the
fluid through, but nothing comes out. The rear wiper and fluid
work just fine! Also checked the fuse and it is ok. Not sure
what to do next! Any help would be greatly appreciated.


Thanks Mark