320d High Coolant Temp

CarAbuser · 11-21-2012, 10:23 AM

Just recently decided to check my coolant temp using the BC hidden menus.

It heated up in good time then just sat at 97deg~ for the rest of the journey.
Searching through other threads I noticed that people are saying it should be at 90deg.

I'm going to check again when I get time just to confirm it.

Low temps seem to be a common complaint but I've not seen any threads about high temps, what are the possible causes?

xenon · 11-21-2012, 10:38 AM

I'd say that was about spot on.

HighlandPete · 11-22-2012, 06:41 AM

Likely just running on the high side of average. Bound to be some examples with components with the + side of tolerance.

BTW, is your car the later N47 engine? That has one thermostat and does tend to be more stable anyway.

HighlandPete

CarAbuser · 11-22-2012, 07:20 AM

Thanks for the input.

I will check again tomorrow to verify. I think I heard somewhere that the DPF regen cycle has an effect on temperatures so it could be that.

I was worried that it could indicate improper oil or an issue with the coolant.

Brian mc21 · 12-27-2012, 06:40 PM

So tell me again. How do I access these hidden menus. Want to check my temps.

CarAbuser · 12-28-2012, 07:44 AM

It's not the easiest menu to get to.

http://e90.wetpaint.com/page/BC+hidden+menus

Good luck!

EQUANT · 12-29-2012, 05:54 AM

My N47 320d's temp is stable @ 88*C with AC on (front vent running).
Highest i've seen was 98*C, in summer time, car stopped, AC off; when temp hit 98*C front fan started running until temp decreased to 95*C, then it stopped and the whole cycle repeated.
If i turned AC on or the car was moving, the temp went back to ~88*C

11-21-2012, 10:23 AM	#1
CarAbuser Lieutenant Colonel 487 Rep 1,551 Posts Drives: Z4 35i DCT / E92 335i DCT Join Date: Jul 2010 Location: United Kingdom iTrader: (0)	320d High Coolant Temp Just recently decided to check my coolant temp using the BC hidden menus. It heated up in good time then just sat at 97deg~ for the rest of the journey. Searching through other threads I noticed that people are saying it should be at 90deg. I'm going to check again when I get time just to confirm it. Low temps seem to be a common complaint but I've not seen any threads about high temps, what are the possible causes?
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11-21-2012, 10:38 AM	#2
xenon Major General 1467 Rep 8,198 Posts Drives: 2021 G21 330i M-Sport Join Date: Jun 2008 Location: Coventry iTrader: (0)	I'd say that was about spot on. __________________ Ian Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
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11-22-2012, 06:41 AM	#3
HighlandPete Lieutenant General 6550 Rep 15,857 Posts Drives: BMW F11 535i Touring Join Date: Mar 2007 Location: Scotland, Highland Region iTrader: (0)	Likely just running on the high side of average. Bound to be some examples with components with the + side of tolerance. BTW, is your car the later N47 engine? That has one thermostat and does tend to be more stable anyway. HighlandPete
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11-22-2012, 07:20 AM	#4
CarAbuser Lieutenant Colonel 487 Rep 1,551 Posts Drives: Z4 35i DCT / E92 335i DCT Join Date: Jul 2010 Location: United Kingdom iTrader: (0)	Thanks for the input. I will check again tomorrow to verify. I think I heard somewhere that the DPF regen cycle has an effect on temperatures so it could be that. I was worried that it could indicate improper oil or an issue with the coolant.
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12-27-2012, 06:40 PM	#5
Brian mc21 Major 40 Rep 1,030 Posts Drives: E91 320d M Sport Join Date: May 2011 Location: Belfast. Northern Ireland. iTrader: (4)	So tell me again. How do I access these hidden menus. Want to check my temps. __________________ E92 330D LCI Garage List NSR 250 MC21, CBR 600RR 3 RVF400
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12-28-2012, 07:44 AM	#6
CarAbuser Lieutenant Colonel 487 Rep 1,551 Posts Drives: Z4 35i DCT / E92 335i DCT Join Date: Jul 2010 Location: United Kingdom iTrader: (0)	It's not the easiest menu to get to. http://e90.wetpaint.com/page/BC+hidden+menus Good luck!
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12-29-2012, 05:54 AM	#7
EQUANT First Lieutenant 30 Rep 317 Posts Drives: 320d Join Date: Dec 2009 Location: Bucharest iTrader: (0)	My N47 320d's temp is stable @ 88C with AC on (front vent running). Highest i've seen was 98C, in summer time, car stopped, AC off; when temp hit 98C front fan started running until temp decreased to 95C, then it stopped and the whole cycle repeated. If i turned AC on or the car was moving, the temp went back to ~88*C __________________ BMW 320 dA LCI, BMW PPK - 197HP, 2010, sapphire black, steptronic
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