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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Jun-15-2015, 06:11:02 AM   #1
Arson8
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Default Running hot in higher temp climates

Hi All,

I was in Palm Desert last weekend, and the weather was around 105 degrees. With the a/c on, my car started to creep up to the 3/4 mark on the coolant temp gauge, and once I turned it off it slowly started coming down. Is this something that I should be concerned about, or is this normal? Below is a list of what has been done within the last 10k miles.

-Coolant flush with BMW coolant and distilled water (80/20 mix)
-BMW Thermostat
-BMW water pump

Thanks fellas!
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Old Mon, Jun-15-2015, 06:13:38 AM   #2
icecream
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Default Re: Running hot in higher temp climates

Quote:
Originally Posted by Arson8 View Post
Hi All,

I was in Palm Desert last weekend, and the weather was around 105 degrees. With the a/c on, my car started to creep up to the 3/4 mark on the coolant temp gauge, and once I turned it off it slowly started coming down. Is this something that I should be concerned about, or is this normal? Below is a list of what has been done within the last 10k miles.

-Coolant flush with BMW coolant and distilled water (80/20 mix)
-BMW Thermostat
-BMW water pump

Thanks fellas!
sounds stupid but 80 water, 20 coolant right?
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Old Mon, Jun-15-2015, 06:15:40 AM   #3
E46_USMC
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Default Re: Running hot in higher temp climates

Quote:
Originally Posted by Arson8 View Post
Hi All,

I was in Palm Desert last weekend, and the weather was around 105 degrees. With the a/c on, my car started to creep up to the 3/4 mark on the coolant temp gauge, and once I turned it off it slowly started coming down. Is this something that I should be concerned about, or is this normal? Below is a list of what has been done within the last 10k miles.

-Coolant flush with BMW coolant and distilled water (80/20 mix)
-BMW Thermostat
-BMW water pump

Thanks fellas!
I live in 29 Palms, about an hour into the middle of nowhere desert from Palm Springs, and my temp has only reached slightly passed half way. 3/4 seems like a bit much to me...
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Old Mon, Jun-15-2015, 06:28:24 AM   #4
Arson8
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Default Re: Running hot in higher temp climates

yes 80 water 20 coolant
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Old Mon, Jun-15-2015, 07:11:48 AM   #5
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Default Re: Running hot in higher temp climates

something is wrong, when i had my electric fan on, higher temp weather made it creep up to 3/4 mark, I promptly installed my clutch fan, and all is good in the world again. Either something is obstructing ur radiator, or ur clutch fan is shot, or ur radiator is blocked from the inside
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Old Mon, Jun-15-2015, 07:15:27 AM   #6
James1251
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Default Re: Running hot in higher temp climates

I was always under the assumption that water boils quicker then antifreeze, which is part of the reason you run 50/50
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Old Mon, Jun-15-2015, 09:38:57 AM   #7
Roberto Ramasco
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Default Re: Running hot in higher temp climates

It sounds like the fan clutch is the problem to me. I had the same problem three weeks ago on a track day. The water temperature rise more than 3/4, inclusively to the red point for a moment. The fan clutch was not working well and if you can prove to stop it with the hand (previously with another thing). If it stops easily the problem is the fan clutch.
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Old Mon, Jun-15-2015, 09:45:42 AM   #8
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Default Re: Running hot in higher temp climates

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Originally Posted by Roberto Ramasco View Post
It sounds like the fan clutch is the problem to me. I had the same problem three weeks ago on a track day. The water temperature rise more than 3/4, inclusively to the red point for a moment. The fan clutch was not working well and if you can prove to stop it with the hand (previously with another thing). If it stops easily the problem is the fan clutch.
But don't stop it with ur hand
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Old Mon, Jun-15-2015, 10:31:04 AM   #9
Zabalzae
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Default Re: Running hot in higher temp climates

Might be a good time to do the whole cooling system a long with radiator
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Old Mon, Jun-15-2015, 01:56:43 PM   #10
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Default Re: Running hot in higher temp climates

3/4 of the gauge is not overheating. However, you need 50/50 mix, maybe even 80 coolant/ 20 water. You may also be needing a new radiator depending on your mileage.. assuming you've checked the fan clutch?
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Discussing Running hot in higher temp climates in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)