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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 06-29-2013, 04:45 AM   #1
Ballstowalls
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To hot??

My temp is running hot is that normal or does the tack stay dead even it's almost on the dot next to red .... It was around 105 today and when I turn off the AC it goes back to normal what's going on ??

Coolant was changed 1000 miles ago
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Old 06-29-2013, 07:31 AM   #2
reyes186
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To hot??

You might need to bleed the cooling system again ...


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Old 06-29-2013, 08:37 AM   #3
Moosecakes
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Is your fan clutch good still? check that since you said it drops when you turn ac on.

also our cars run hot as FAWK, and out in 105 temps it isn't uncommon for the temps to rise from what I am reading. Are you driving in stop and go traffic?
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Old 06-29-2013, 01:33 PM   #4
Ballstowalls
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Originally Posted by Moosecakes View Post
Is your fan clutch good still? check that since you said it drops when you turn ac on.

also our cars run hot as FAWK, and out in 105 temps it isn't uncommon for the temps to rise from what I am reading. Are you driving in stop and go traffic?
Even on the freeway going at 60 for 10 miles with the AC on the temp will rise ... Im going to bleed my coolant first then se what happens
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Old 06-29-2013, 01:46 PM   #5
tinman831
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With this heat wave across the nation, we're going to see a lot more of these threads. If your coolant system maintenance is up to date, I wouldn't worry about it too much. Most people living in warmer climates see this during the summers (especially in stop and go traffic, with the ac on). Now if you're due for maintenance, it might be a good time for a refresh. Did you notice any heat issues before the warm weather started? Usually air in the system would have manifest itself a lot sooner after your coolant flush.
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Old 06-29-2013, 03:29 PM   #6
Ballstowalls
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Originally Posted by tinman831 View Post
With this heat wave across the nation, we're going to see a lot more of these threads. If your coolant system maintenance is up to date, I wouldn't worry about it too much. Most people living in warmer climates see this during the summers (especially in stop and go traffic, with the ac on). Now if you're due for maintenance, it might be a good time for a refresh. Did you notice any heat issues before the warm weather started? Usually air in the system would have manifest itself a lot sooner after your coolant flush.
Hmmm

Last edited by Ballstowalls; 06-29-2013 at 03:31 PM.
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Old 06-29-2013, 03:31 PM   #7
Ballstowalls
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It only acts up when the weather is over 100 I did have some air whistle out more then normal when I opened my coolant ... Maybe the coolant mixture was not right
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Old 06-29-2013, 03:43 PM   #8
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Same thing happened to me last year when the temperature was 100 or more. It only happens with the AC on, went back to normal when AC is turned off. So probably this is common to those commute in areas where the temperature are around 100 degrees. My temperature level would never past middle, only during the heat wave. Our cars runs hot already, with the additional heat, it may overheat. Same thing happens to my F430. On my other vehicles. it doesn't happen. Not much we can do but to take it slow during the heat wave.
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Old 06-29-2013, 05:49 PM   #9
Ballstowalls
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Originally Posted by Verooom View Post
Same thing happened to me last year when the temperature was 100 or more. It only happens with the AC on, went back to normal when AC is turned off. So probably this is common to those commute in areas where the temperature are around 100 degrees. My temperature level would never past middle, only during the heat wave. Our cars runs hot already, with the additional heat, it may overheat. Same thing happens to my F430. On my other vehicles. it doesn't happen. Not much we can do but to take it slow during the heat wave.
Man my car runs like CRAP in the summer I hate it
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Old 07-01-2013, 12:02 PM   #10
DSilk56
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We don't get temperatures over 100 degrees in Miami, but temperatures in the low 90's are the norm from June through much of September, and I ave never seen my car's temperature gauge go to the right of the 12 o'clock position on the dial, even in stop and go traffic with the A/C on full blast.
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Old 07-01-2013, 07:49 PM   #11
kokom3
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Coolant temp gauge can fluctuate a little left or right of the middle, but if the tack is on the dot on the red side of the gauge, then something is off. Bleed the system for air and use a 50/50 mix of coolant (preferably BMW coolant).
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