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#1
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Coolant Temperature 400E.
Hello,
How long does it take to reach 80 degree at sub-zero temperature for a 400E? The temperature now in my area (Canada) is about 3-4 Celsius, everyday I drive about 10 km to work, I don't warm up my car first, it takes nearly the whole trip to reach 80(15 minutes), is this normal? or I have to get a new thermostat? My other cars reach normal temperature at 1/3 of the trips (5 minutes). Thanks
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99 BMW 540i 6-speed 110K Km 03 SAAB 9-5 wagon 80K Km 92 400E (Sold) 245K km Still missing the days with the Benz, it kept me busy. |
#2
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Probably do need a new thermostat. Mine usually gets up to 80 after about 3-4 miles. I replaced mine last year when it just would not ever quite get to 80.
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Steve '93 400E |
#3
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Thermostat is probably partially stuck open.
This is way too long for it to warm up, definitely replace the thermostat.
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Ali Al-Chalabi 2001 CLK55 1999 Dodge Ram 2500 Cummins Diesel 2002 Harley-Davidson Fatboy Merlin Extralight w/ Campy Record |
#4
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Thank you, guys.
I will replace the thermostat this weekend, maybe I can also improve my gas mileage by doing that.
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99 BMW 540i 6-speed 110K Km 03 SAAB 9-5 wagon 80K Km 92 400E (Sold) 245K km Still missing the days with the Benz, it kept me busy. |
#5
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The thermostat was getting worse, not only it took quite long time to reach 80, but also after it reached 80, it went all the way to 110, I had to turn on heater to cool the engine.
Ordered a 80 C thermostat from Partshop, but just couldn't wait for a week. Yesterday I took out the old thermostat, and brought it to local Canadian Tire store, I was very lucky to find a one with the same diameter, the gasket fits perfectly. It's a MotorRad brand high flow thermostat, only difference is that it's 192 F (90 C), and it cost only 22 Canadian$ (14 USD). Now the engine warms up super fast, and the needle stays one line above 80 degree, I guess it should be 90 C. Can I use this 90 C thomerstat for this whole winter and use the OEM 80 C when it gets warm? An extra 10 degree makes me feel warmer in Canadian winter, I hope this M119 engine is not very sensitive to coolant temperature. BTW, the original thermostat from the car was very bad, I easily pulled out the center push rod by my hand. Thanks.
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99 BMW 540i 6-speed 110K Km 03 SAAB 9-5 wagon 80K Km 92 400E (Sold) 245K km Still missing the days with the Benz, it kept me busy. |
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