I had a oil change today on my 2006 325ci and the mechanic who i think is trustworthy says i will need a new fan clutch. With warmer temps he says engine could over heat. He wants $300 to replace. Sound reasonable?
You don***8217;t need to replace it with an electric fan, you already have an electric fan. You can delete the clutch fan but that is still a debatable modification since you lose some cooling ability, especially if the e-fan failed. If you do change the viscous clutch fan it is good practice to replace the water pump. They share the same bearing shaft.
If you delete the viscous clutch fan DME will activate the existing e-fan more often and with faster speeds to maintain the temperature thresholds in the maps. Doesn***8217;t matter what side of the radiator it***8217;s on, DME will compensate.
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