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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 11-20-2007, 10:03 AM   #1 (permalink)
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Exclamation NEED Help please - Engine Temp E36 318i 94 takes a long time to warm up.

Hi guys, thanks for the help in advance. I'm been a bit worried about the engine temp of my car. For some reason it takes at least 30 mins before the engine reaches the normal temp(the needle is on the middle of temp gauge). My heater works fine and it warms up fast too. Also what I noticed is that if I turn on the heater the engine temp drops most of the time; it drops dramatically almost a quarter near the blue area. Is this normal? I'm just curious since during summer time my car warms up after 15 mins of driving. Now this winter season comes up it just takes a long time to warm up. By the way the 30 mins warm up time, that doesn't include with the heater on. I tested my gauge by running the self test and gauges works properly. Is this normal? Please kindly provide your input. thanks.
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Old 11-20-2007, 10:28 AM   #2 (permalink)
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Could be a sticky thermostat?
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Old 11-20-2007, 06:03 PM   #3 (permalink)
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yeah, your thermostat could be on its way out and be stuck open.
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Old 11-20-2007, 07:07 PM   #4 (permalink)
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Thanks for the input, I'm still thinking if the thermostat is the culprit. If it is, wouldn't be my hot air becomes colder the more I drive it? I'm actually still getting hot air even if the engine temp drops a quarter from the middle of the temp gauge? Also the interior air becomes hot in 5 mins after I started the car. Anyhow, I'll check on how to replace the thermostat, any DIY by the way for E36 M42? I'm seeing some but most of them are for 6 cylinder E36s.
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Old 11-20-2007, 07:11 PM   #5 (permalink)
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Quote:
Originally Posted by hyper_cool
Thanks for the input, I'm still thinking if the thermostat is the culprit. If it is, wouldn't be my hot air becomes colder the more I drive it? I'm actually still getting hot air even if the engine temp drops a quarter from the middle of the temp gauge? Also the interior air becomes hot in 5 mins after I started the car. Anyhow, I'll check on how to replace the thermostat, any DIY by the way for E36 M42? I'm seeing some but most of them are for 6 cylinder E36s.
If it's stuck open, you'll have a never-ending supply of coolant that's well over the temperature needed to generate heat in your exchanger. It might be cool for the engine, but 160+ degrees is still pretty warm!
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