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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Running hot



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      03-20-2007, 08:15 PM   #1
RRGOO7
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Running hot

Am i runnning hot?
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      03-20-2007, 08:16 PM   #2
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Mine's never been that hot. 240+ is the highest I've seen.
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      03-20-2007, 08:38 PM   #3
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manual, thats a tad hot, auto, probably normal

mines never gone above a tick below halfway between the 210-300, and ive run my car really hard (plus i live in florida where its hot)
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      03-20-2007, 08:42 PM   #4
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I get that hot if I run my car super hard. But it goes back to 210 F, in about 3 mins just by normal driving around
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      03-20-2007, 09:03 PM   #5
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Quote:
Originally Posted by teknochild View Post
manual, thats a tad hot, auto, probably normal

mines never gone above a tick below halfway between the 210-300, and ive run my car really hard (plus i live in florida where its hot)
I'm in S. FL too...I've got an AT and currently run with an XEDE, and my 335i has never been 260 degrees F like that; the hottest I've seen mine was at 245 degrees F, but usually I'm at 230-240 degrees F.

You may want to take it in for service if that continues.
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      03-20-2007, 09:28 PM   #6
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6 MT here...... mine never goes up above about 240.
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      03-20-2007, 09:32 PM   #7
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http://www.e90post.com/forums/showthread.php?t=52262
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      03-20-2007, 09:42 PM   #8
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6 mt, Florida, runs 240. Of course, it isn't 100 degrees yet,
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      03-20-2007, 09:52 PM   #9
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270 here drivin hard and fast on back roads
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      03-21-2007, 01:22 AM   #10
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I am going to wait and see about this issue. PROcede is due any day and with the temps in Dallas climbing already, only time will tell when it is 100+ outside. Asked dealer about this 2nd cooler for autos produced early(mine). They ran my vin# and said nothing is flagged as to any corrections to be made by them. This worries me a bit with all the talk.
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      03-21-2007, 01:41 AM   #11
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I've never gone over 230 degrees with the exede.
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      03-21-2007, 08:30 AM   #12
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i had auto + no cooler and run at 230-240 usually, but if im flogging it hard, its closer to 250-255, but i have never hit 260. and some of this driving was in 85 degree heat.
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      03-21-2007, 09:31 PM   #13
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This really irks me. I have an auto the highest I have ever been was 255 in city driving with high, short-burst RPM's in DS mode after an hour of driving like this.

Not happy with this at all. Lets start a sticky on how to go about getting an oil cooler. After 15 min of driving, I am usualy at 210-220 degrees. After half an hour probably 230-245.

To the OP, if this was only after 15 minutes of driving I would be concerned. If it was after 50min - 1 hour, I would still keep a careful eye on that gauge. Keep updated on our fight for the oil cooler.
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      03-22-2007, 01:51 AM   #14
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My car reaches 260-265 very easily in the city when in manual mode with the steptronic. It doesn't really move much from there after, but it does get there within a couple of minutes driving in manual mode. In DS or the normal D mode I have yet to reach 260 though.
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      03-22-2007, 01:52 AM   #15
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Oil Cooler Retrofit Ftw!!
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      03-22-2007, 01:53 AM   #16
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The hottest I've seen mine is at 250, this was on a day with 90degree weather and back to back traffic.

The car runs cooler when you're moving at a high speed and the temp goes up faster/more when you are driving in bumper to bumper traffic or you're simply pushing the car very hard.
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      03-22-2007, 07:22 AM   #17
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Mine has never been that high
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      03-22-2007, 07:38 AM   #18
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My step was at 260 yesterday in D mode driving around in a neighborhood.
78 degrees out.
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      03-22-2007, 08:36 AM   #19
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Quote:
Originally Posted by Brisk View Post
what where u doing that the temp climbed so high? and what was the temp outside?
Running from 0-60 hard runs
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      03-22-2007, 10:22 AM   #20
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Mine runs a line below the pictured one, so what's that 250? Car is brand new and hasn't been driven hard yet. Production date: 1/07 not sure if it has oil cooler or not. Appears to be 3 different coolers up front, car is Auto trans.

Live in phoenix, it's been pretty warm here and only going to get hotter.

Has 200 miles on it, I've punched it a few times. Getting ready to get on it pretty hard wondering if she's going to fry or not LMAO!

Where is this phantom oil cooler mounted, still wondering if I have it or not???

I want to do quite few cosmetic things to this car, but if it's going to be in the shop soon I might just wait
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      03-22-2007, 11:29 AM   #21
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Quote:
Prior to around 1980, cars and trucks had large radiators and very free airflow through them, and engines ran fairly cool. Even the standard thermostats were 180°F, again permitting cool engine operation, with the intention of enabling long engine life. When fuel efficiency and air pollution came to be politically important, the advantages described above, of intentionally reducing the effectiveness of the cooling system to reduce the cylinder heat losses to increase efficiency, started appearing. Now, nearly all vehicles have rather small radiators and they have small grilles allowing air in to them! Modern radiators are actually too small to avoid overheating and so cooling fans are necessary to keep engines from boiling over. Similarly, modern thermostats are generally 195°F, which raises all the engine temperatures by 15°F. Look in any engine compartment today and you see a clutter of things surrounding the engine. That was not the case long ago, when free air flow around an engine was desired for engine durability. Now, the highest possible engine operating temperature is used, (reduced cooling performace described above) to improve engine efficiency and performance, which also reduces the amount of air pollution created in the process. Engine durability is less than it used to be, but people rarely seem to keep vehicles as long as they used to, so it is apparently not considered a problem.
Something to think about. Keep in mind the number of people that lease BMWs (as opposed to Honda, Toyota, etc.).
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      03-22-2007, 12:29 PM   #22
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Quote:
Originally Posted by Corey View Post
Something to think about. Keep in mind the number of people that lease BMWs (as opposed to Honda, Toyota, etc.).
What's really interesting is that the higher temperatures at which the car companies are designing the engines to run causes the oil to coke and break down. This is causing dramatic increases in the build up of sludge in the engines and causing premature engine failure. Several manufacturers are having trouble with this. One of the ways to help is to use only synthetic oil. If you do a search there are many people having trouble with this (Toyota, etc.)
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