As title says...my M42 runs hot, a needle width past the middle in normal driving/idle and with AC on in traffic it'll be halfway between the middle mark and the 3/4ths..the aux fan never kicks in which I'm currently taking care of now, but I'm curious when it SHOULD kick in in regards to the temperature gauge? Thanks.
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Originally posted by TSIOEM+ -
Mine kicks in when the temp gauge goes a little bit past the middle.OG RACECAROriginally posted by kendogg
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Stock temp switch ?Originally posted by TSIOEM+Comment
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New fan clutch is $40 on ebay, brand new Hamburger-Technic. My car has yet to overheat on the hotest days stuck in traffic. Ive never had my Aux fan kick on.
Hes in NY too, so you should get it witin like 8 minutes of oredering it.
Also chuck a new thermostat in there.1985 325e M50TU(Sold)
1991 318is Slicktop (Sold)
1990 325is Brilliantrot S50/5 Lug Swapped.
1992 525i Manual shitbox Winter BeaterComment
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The aux fan should come on whenever you turn on the AC, no matter what the engine temp is. I would check the whole aux fan circuit. Does the fan work if you apply 12V to it? Does it turn freely when off?Comment
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The aux fan suddenly started to work after I replaced the resistor and temp switch, so now if I go just a little over half it kicks in, it's awesome.New fan clutch is $40 on ebay, brand new Hamburger-Technic. My car has yet to overheat on the hotest days stuck in traffic. Ive never had my Aux fan kick on.
Hes in NY too, so you should get it witin like 8 minutes of oredering it.
Also chuck a new thermostat in there.
Just replaced the resistor and temp switch and it works now. SweetOriginally posted by TSIOEM+Comment
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