Originally Posted by X-fired
I replaced my fan blower controller (resistor block) with a Mercedes part I found on ebay: "2108206210 SLK320 CLK430 CLK55 SLK55".
It looks identical but the fan speeds for each setting are much higher than before (I wonder if Chrysler has different internal resistor values). The new Low setting is similar to the No. 3 or 4 setting from before. It's way too high for a low setting. I might put a resistor in series to bring the entire thing down. Need to determine what value to use. Bummer.
But, the fan is no longer intermittent.
I replaced mine about a month back with one I bought off eBay. My fans speeds seemed somewhat slower than factory settings. I do know that there are several versions of this blower motor resistor. Seems (to me) that getting the exact one originally installed in our XFires is an issue.
Later,