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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 03-17-2008, 02:28 PM   #1 (permalink)
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Car running cold, not getting to temp

I have a 2000 323, and the car is not getting to temp. Most logical thing i know is thermostat, but anyone else know of what else it might be, and oh by the way, most people know a thermostat is like $15-25. This one is $90 for this car. Feel like I need to bend over and hope they use lubricant!
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Old 03-17-2008, 02:34 PM   #2 (permalink)
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Originally Posted by spfdfanatic View Post
I have a 2000 323, and the car is not getting to temp. Most logical thing i know is thermostat, but anyone else know of what else it might be, and oh by the way, most people know a thermostat is like $15-25. This one is $90 for this car. Feel like I need to bend over and hope they use lubricant!
let the car run for awhile 10-15minutes, or go drive it for 5-10minutes and then feel the upper hose. Is it hot or cold? Does you heater blow hot?
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Old 03-17-2008, 02:50 PM   #3 (permalink)
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the heater does not blow as hot as it should, I'll feel the hose tonight when I get home and see if it is hot.
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Old 03-18-2008, 05:36 PM   #4 (permalink)
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Old 03-19-2008, 08:26 AM   #5 (permalink)
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Old 03-19-2008, 12:08 PM   #6 (permalink)
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Not speaking for the tech, but, if the thermometer is sticking open, it won't let your
coolant heat up properly. Proper operation of a therm. is, if it is a 195 degree therm..
it will stay closed until the engine temp. reaches 195, then it opens up and, water
starts to circulate. If open all the time, the water temp. won't reach the higher temp.,
that is why your heat is tepid.
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Old 04-01-2008, 11:33 PM   #7 (permalink)
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I have a 2000 323, and the car is not getting to temp. Most logical thing i know is thermostat, but anyone else know of what else it might be, and oh by the way, most people know a thermostat is like $15-25. This one is $90 for this car. Feel like I need to bend over and hope they use lubricant!
The thermostat has failed. It is not a simple one like on a Chevy etc. It has some electrical component.
Have it replaced and while they are in there replace your water pump as well. They have a plastic impeller and will fail after enough heat cycles. Do it now and avoid it failing on the highway in future. No big deal, it's just proper maintenance of a fine car.
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Old 04-01-2008, 11:46 PM   #8 (permalink)
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Originally Posted by Flacke View Post
The thermostat has failed. It is not a simple one like on a Chevy etc. It has some electrical component.
Have it replaced and while they are in there replace your water pump as well. They have a plastic impeller and will fail after enough heat cycles. Do it now and avoid it failing on the highway in future. No big deal, it's just proper maintenance of a fine car.
i agree with Flacke it is most likely the thermostat.... replace the water pump at the same time... had my 740's fail on me replace it if you dont know how many miles are on it (every 60K)
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Old 04-02-2008, 02:09 AM   #9 (permalink)
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Yeah I Had To Replace The Pump When I Replaced My Thermostat, Its Also A Good Idea To Replace You Coolant Expansion Tank Also, It Connect To Your Upper Hose And The Radiator...oem Orig. Retail Price At The Bmw Dealer Was 70 Bux
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