A reciever/drier is an 80.00 part, to replace probably an hour or two at most, and 250 to evac and recharge. It shouldnt be more than 500.00.. Ask them for a break down of labor and parts.

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Dennis
2006 E320 CDI Black/Black Leather. Nav, HTD Seats HK stereo 32000 miles.
2000 VW Passat 1.8t 300,000 miles as of Dec 09, 2009 original owner
1997 E300d Silver 300,000 miles As of Jan 05, 2010
3rd owner SOLD