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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 2008 e92 335d high coolant temp HELP !



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      05-21-2015, 04:56 PM   #1
utkunoa
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2008 e92 335d high coolant temp HELP !

Hello friends I am new in here from turkey !

I think I have a problem with my cooling system. I open the coolant temp from hidden menu. It show 92-94 centigrat in normal use, when I use with high boost its increase to 115 !. I change the EGR termostat. Main termostat. and water pump. But problem is still continue. Is my DPF is full ? car do regen everytime to clean the DPF ? Please help me

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Utku
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      05-21-2015, 06:56 PM   #2
DWR
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what is the ambient temperature?
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      05-22-2015, 02:45 PM   #3
utkunoa
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ambient temp is 25-30 centigrat
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      05-22-2015, 02:58 PM   #4
charlie fairmont
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Certain you've bled the system of all air?
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      05-22-2015, 06:08 PM   #5
utkunoa
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yes I do that with twice thermostat
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      05-24-2015, 06:27 PM   #6
BB_cuda
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Quote:
Originally Posted by charlie fairmont View Post
Certain you've bled the system of all air?
How do you bleed system on M57 engine? Not related to thermostat, I've had the EGR cooler water system apart. Lost about 2 cups of coolant
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      05-24-2015, 10:08 PM   #7
dixy2k
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Could it be the water/coolant pump at fault?
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      05-24-2015, 11:39 PM   #8
DETSGTSTARSKY
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I would have your coolant system pressure tested. I had my water pump and thermostat replaced four months ago on my 2011 E90 335. I had the low coolant light come on three times in a month and had to add around 42 ounces of coolant mixture. Plus I observed operating temps nearly hitting 250 degrees on a 55 degree day. I wasn't seeing coolant leakage. Turned out my expansion tank was cracked and leaking. So this was replaced and I am back in business. Something else to check out.
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      05-26-2015, 10:13 AM   #9
utkunoa
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I receive only boost sensor error. no error for any waterpump or radiator ?. Normal use it seems 91-92 when I hit full throttle it increase to 101-102 after the 230 or 240 km/h its up to 113 centigrate
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