AC Fan stopped blowing
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,146
Likes: 533
Mercedes
UPDATE: Now a week later it seems that the blower motor is on the way out...seems to run when it wants to. I ordered an aftermarket replacement for $265.00 and will replace as soon as I get my hands on it. I guess these components just "go away" in time. What puzzles me is that even though my car is 11 years old ...it only has 65K miles....so why am I having failures of parts that have seen very little use?
Unfortunately the way these cars were designed , water and debris gets directly into the blower and then is flung about , and corrosion occurs . It all stems from the reed valve issue that has ruined many a Mercedes
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,469
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
The black dust was carbon from wear on the brushes that conduct electricity to the rotating armature. Your cleaning probably freed a sticking brush. With that much brush wear, you are on borrowed time. You can sometimes find replacement brushes for a DIY repair, or can sometimes find an auto electric shop that can install new brushes.
