I had all four door pumps blow on my car. Luckily, I purchased the extended warranty so they all got fixed. I think the dealer quoted me something like $1,300 to fix all four. I laughed because they were under warranty. Also, because of this forum, I know how to take my doors apart so I don't have to go to the dealer about this problem anymore.

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Ed
-1984 Mercedes 190D 2.2 5-speed gray market(bought@30,000 miles) (Sold back to original owner@170,000 miles)
-1999 Mercedes E300DT (245,000 miles)
-1999 Mercedes S500 Grand Edition (80,000 miles)