Where should the needle on the temperature gauge rest when normally operating an e30 318is? Mine tends to sit in the middle but I noticed it creeped slightly to the right yesterday and turning the heater on cooled in down. If this is an issue, any idea what it might be? Sorry if this has already been answered, I'm still new here and I don't know how to search for archived threads. Thanks in advance.
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A question regarding temperature
What temperature thermostat should be installed? I put in a 71°c thermostat in the summer and my car is constantly on or just above the first line. Now that the weather is turning cold should I put in a higher temp thermostat? I noticed that my car is more constantly idling higher since the temp dropped for winter and the needle is usually just under the first line. Now it's around 1800rpm idling out of gear (manual) and I was wondering since it's so cold does the engine still think it's in warm up mode and is idling higher? If I turn off the car and turn it back on the idle settles down to 800 or so.
Thanks!
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Holy shit, 71C??? Dude, the standard thermostat for the M42 (everywhere except the Sahara) is 88C. I ran an 80C one ONCE in 2003 for about a month because I had no idea what I was doing and yeah, it never fully warmed up and I was getting crap gas mileage and fouled up all of my plugs along with ruining my cat. Get an 88C one in there ASAP! The Bay Area and its 1.5 seasons never gets hot enough to warrant anything other than the 88C thermostat.
Also, when you have the thermostat housing off make sure that the air bypass groove that connects the 2 chambers is clean and clear. That makes bleeding the air out a LOT easier.
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Originally posted by Navarone View PostWhat temperature thermostat should be installed? I put in a 71°c thermostat in the summer and my car is constantly on or just above the first line. Now that the weather is turning cold should I put in a higher temp thermostat? I noticed that my car is more constantly idling higher since the temp dropped for winter and the needle is usually just under the first line. Now it's around 1800rpm idling out of gear (manual) and I was wondering since it's so cold does the engine still think it's in warm up mode and is idling higher? If I turn off the car and turn it back on the idle settles down to 800 or so.
Thanks!
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Originally posted by ihaveaquestion View PostWhere should the needle on the temperature gauge rest when normally operating an e30 318is? Mine tends to sit in the middle but I noticed it creeped slightly to the right yesterday and turning the heater on cooled in down. If this is an issue, any idea what it might be? Sorry if this has already been answered, I'm still new here and I don't know how to search for archived threads. Thanks in advance.
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Originally posted by CorvallisBMW View PostSounds like things are getting a touch warm. It could be a lot of things. Bad fan clutch, clogged radiator, failing water pump, failing thermostat, etc.. Time to start investigating!
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Are the thermostats marked for temp? Mine sits just past the first click most of the time...-Christian
'02 ///M3 CarbonSchwartz 6MT daily beast
08/91 Mtechnic II 325IC alpine/lotus
318iS, slow build/garage queen...
'37 Chevy pickup, the über projectOriginally posted by roguetoasterBe sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.
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