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The BMW Range
3 Series
E46
radiator water always reduced (e46 318i)
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<blockquote data-quote="jarance" data-source="post: 382857" data-attributes="member: 21"><p>There are 2 fans for the E46.</p><p></p><p>One fan is clutch type and the speed is based on the temperature thru the radiator. The hotter the air the faster the clutch fan will spinned.</p><p></p><p>The other fan which is located in front of the engine is electric driven and is also variable speed based on the temperature and air con usage. Check whether the fan is running or not and see whether the speed changes when it is running. (Could be power resistor problem)</p><p></p><p>I presume you have overheating problem when you are struck in the traffic jam. Do you still have overheat problem when the car is moving on the highway?</p><p></p><p>BTW, check the connector beside the radiator for the fan. it is located just on the left side of the radiator. i found mine have loose connector and plastic was brittle due to overheating.</p></blockquote><p></p>
[QUOTE="jarance, post: 382857, member: 21"] There are 2 fans for the E46. One fan is clutch type and the speed is based on the temperature thru the radiator. The hotter the air the faster the clutch fan will spinned. The other fan which is located in front of the engine is electric driven and is also variable speed based on the temperature and air con usage. Check whether the fan is running or not and see whether the speed changes when it is running. (Could be power resistor problem) I presume you have overheating problem when you are struck in the traffic jam. Do you still have overheat problem when the car is moving on the highway? BTW, check the connector beside the radiator for the fan. it is located just on the left side of the radiator. i found mine have loose connector and plastic was brittle due to overheating. [/QUOTE]
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radiator water always reduced (e46 318i)
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