W210 Heater with 'dial' controls

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tonyee

New Member
Joined
Oct 15, 2010
Messages
5
Location
Norfolk UK
Car
E220 Aventgarde 2004 - SLK 230K 2000
The fan speed switch seems to increase / decrease and stop at whatever speed setting you set it too. I have been told it could be the brushes but would this cause the fan to increase speed as I would have thought if the brushes were worn the fan speed would be slower or stop completely. Any help would be grateful as I don't want to strip it down until I have a better idea what the problem could be.

Thanks
 

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