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Date registered: May 2006
Vehicle: 2001 E320 - Brilliant Silver/Ash: 107,000+
Location: West Virginia, USA
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Quoted: 5 Post(s)
The the pump and washer hose both sound like good possibilities. There is also an outside chance that the nozzles have become clogged, but I think an unlikely one, if neither work.
Have a friend watch from the front when you activate them - if they at least open, this will help you narrow it down from among our suggestions.
Mercedes Benz - Das beste oder nichts!