E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > BMW Regional Forums > Regional Forums > Australia

Australia
Check out other E46Fanatics members rides in the Enthusist Directory!

If you don't have your garage setup, sign up today HERE

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 12-15-2012, 10:17 PM   #1
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
High coolant temp. Help please (sitting on the side of the road content)

Hey guys. On a mountain run with some friends and my coolant started to approach red. Pulled over as soon as I could.

Got up to 114 degrees and is currently at 113. The fan isn't on so I think that's screwed or a faulty connection or something.

Any tips on what I should do? Wait for it to cool down? Just drive it easy?

What temp can it get up to? My oil only hit 110

Any help is really appreciated. Thanks guys!
__________________


DeclanM3 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 12-15-2012, 10:18 PM   #2
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
Currently at 105.
__________________


DeclanM3 is offline   Reply With Quote
Old 12-15-2012, 10:47 PM   #3
TitanSilverE46
Registered User
 
Join Date: Nov 2010
Location: Melbourne Australia
Posts: 276
My Ride: 2001 318i & 325i
If fan isn't working that could be the cause. Have you checked the fuse? I think it is Fuse 37.

Any water around ... split expansion tank? Yellow Low Water light?

If all is OK, I would wait until the temp got down to normal and drive easy making sure you still have air passing over the radiator. Turn the engine off while stationary in traffic.

Good Luck
__________________
TitanSilverE46 is offline   Reply With Quote
Old 12-15-2012, 10:57 PM   #4
CortinaD
Registered User
 
Join Date: Jan 2005
Location: Australia
Posts: 10,093
My Ride: lots
turn the heater on full blast, that will help cool it down
CortinaD is offline   Reply With Quote
Old 12-15-2012, 11:02 PM   #5
gue555
Registered User
 
Join Date: Dec 2012
Location: hobart
Posts: 26
My Ride: bmw 318 m sport 2004
whats the normal coolant temp?
gue555 is offline   Reply With Quote
Old 12-15-2012, 11:10 PM   #6
///MPR77
Registered User
 
Join Date: Dec 2007
Location: Los Angeles
Posts: 1,852
My Ride: 02 ///M3 Tri-Ped
Normal temp is 89-96C

OP are you using the cluster
(menu 7)? If so, good.
Obviously, do not drive it hot!!
__________________

Bewahren Sie ihre ultimative fahrmaschine

Last edited by ///MPR77; 12-15-2012 at 11:11 PM.
///MPR77 is offline   Reply With Quote
Old 12-15-2012, 11:31 PM   #7
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
Thanks Gents.

I waited on the side of the road and turned the heat on full with the engine off. Seemed to extract some of the heat from the engine bay (right into the cabin). Waited until it got to 88 then continued to drive home with full heat on. Coolant temp remained at 84/85 the whole way home..

32 degree aircon + 37 degrees outside for 50 minutes.. Think I might need some water! What an uncomfortable trip home.. Got some weird looks driving around in my jocks sweating my arse off!
__________________


DeclanM3 is offline   Reply With Quote
Old 12-16-2012, 12:01 AM   #8
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
Was using Intravee II to monitor the temps. Not the cluster menus.
__________________


DeclanM3 is offline   Reply With Quote
Old 12-16-2012, 12:24 AM   #9
///MPR77
Registered User
 
Join Date: Dec 2007
Location: Los Angeles
Posts: 1,852
My Ride: 02 ///M3 Tri-Ped
Quote:
Originally Posted by DeclanM3 View Post
Was using Intravee II to monitor the temps. Not the cluster menus.
Use Distilled water when you go to top it off (engine cold)

Good luck.

Sent from my SGH-I727 using Bimmer App
__________________

Bewahren Sie ihre ultimative fahrmaschine
///MPR77 is offline   Reply With Quote
Old 12-16-2012, 01:20 AM   #10
Alpine
Registered User
 
Join Date: Apr 2004
Location: Brisbane, Australia
Posts: 443
My Ride: 2002 E46 BMW 330Ci
Just noticed you're also in Brisbane. Which mountain were you on? It was a pretty hot day today, that's for sure... sorry to hear the M3 almost overheated!
__________________
Alpine is online now   Reply With Quote
Old 12-16-2012, 03:33 AM   #11
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
Quote:
Originally Posted by Alpine View Post
Just noticed you're also in Brisbane. Which mountain were you on? It was a pretty hot day today, that's for sure... sorry to hear the M3 almost overheated!
Was out at Mt Tambourine with some really nice cars. So annoyed I had issues
__________________


DeclanM3 is offline   Reply With Quote
Old 12-16-2012, 04:32 AM   #12
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
So I thought that my radiator fan was screwed as it wasn't on when I turned the car off today. I thought they were suppose to run after you turned the car off to ensure they cooled the engine to a certain point. It even wasn't running when I had the key in position 2 which I would've thought it would.

Checked the fan tonight and it was working fine when the ignition was on.

This therefore leaves me in a bit of a pickle in terms of trying to figure out what happened today. Should the radiator fan have been running when the coolant was at 113 and the car was off? If so then any suggestions on what might cause this to fail but still allow for the radiator the run normally when the ignition is on?

I have checked the coolant and it is at a normal height but it hasn't been flushed since I bought the car (i've only had it 6 months). Was done just before hand but for good measure I'm going to do a flush.

Could the coolant have just gotten so high because it was 37 degrees outside, I had the aircon on 16 at full fan, windows down and was driving spiritedly? I wasn't driving really hard but it was constantly between 4,000-6,000 revs for a few minutes straight. Not really abnormal for an M3 though?
__________________



Last edited by DeclanM3; 12-16-2012 at 04:33 AM.
DeclanM3 is offline   Reply With Quote
Old 12-16-2012, 04:48 AM   #13
Jall
Registered User
 
Join Date: Oct 2008
Location: Melbourne, AUS
Posts: 992
My Ride: 328Ci
Start by bleeding the coolant? Would have thought you'd have issues by now though...
I'd say coolant temp sensor, but you were monitoring them which means the sensor itself can't be bad....?
__________________
Jall is offline   Reply With Quote
Old 12-16-2012, 05:28 AM   #14
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
Quote:
Originally Posted by Jall View Post
Start by bleeding the coolant? Would have thought you'd have issues by now though...
I'd say coolant temp sensor, but you were monitoring them which means the sensor itself can't be bad....?
The way in which I was monitoring the temps was from the Intravee II unit which I believe hooks into DME and the cluster. Perhaps it's a different system that actually controls the radiator fan due to coolant temp than what the car uses to display the temp to the driver?

Edit: also, not sure if this makes a difference but the coolant remained at 84/85 the whole way home. Mind you I was driving very cautiously and was at speed for most of the time but even when I got into the city and was driving up my multi-storey car park it stayed at 85.
__________________



Last edited by DeclanM3; 12-16-2012 at 05:29 AM.
DeclanM3 is offline   Reply With Quote
Old 12-16-2012, 05:34 AM   #15
Davconelectric
Registered User
 
Join Date: Apr 2011
Location: Sunny melbourne
Posts: 1,909
My Ride: 330
Check thermostat
__________________
Davconelectric is offline   Reply With Quote
Old 12-16-2012, 06:27 AM   #16
ating
Registered User
 
Join Date: Sep 2010
Location: Australia
Posts: 1,624
My Ride: 2004 M3
Is 114 degrees that bad? I've seen my car get up to 100 degrees and that was just in a hot day, normal highway driving.
__________________
Evolve CSL airbox w/Alpha-N tune | KW v2 | Vorshlag Camber Plates | WORK Equip 18x10/12 | Dixis Ti exhaust
ating is offline   Reply With Quote
Old 12-16-2012, 06:33 AM   #17
DeclanM3
Registered User
 
Join Date: Aug 2008
Location: Sydney
Posts: 3,359
My Ride: 332Ci
Quote:
Originally Posted by Davconelectric View Post
Check thermostat
Is the thermostat the same thing that reports the temp to the computer, cluster etc.?

Quote:
Originally Posted by ating View Post
Is 114 degrees that bad? I've seen my car get up to 100 degrees and that was just in a hot day, normal highway driving.
We're talking coolant here, not oil. 114 for oil is fine, it's pretty warm for coolant though.
__________________


DeclanM3 is offline   Reply With Quote
Old 12-16-2012, 01:33 PM   #18
Jall
Registered User
 
Join Date: Oct 2008
Location: Melbourne, AUS
Posts: 992
My Ride: 328Ci
Quote:
Originally Posted by DeclanM3 View Post
Is the thermostat the same thing that reports the temp to the computer, cluster etc.?
Coolant temp sensor is on the lower radiator hose, on a non m at least.
If t.stat's not opening that could explain it...



Sent from my GT-I9300 using Bimmer App
__________________
Jall is offline   Reply With Quote
Old 12-16-2012, 03:54 PM   #19
Ballistic325
Registered User
 
Join Date: May 2009
Location: Sydney
Posts: 2,191
My Ride: slow and steady
^ agreed with Jall. Might have been a stuck thermostat.... cheap and easy to replace.

As already pointed out, check for signs of leaks and a good idea to do a coolant flush.

Good luck and well caught!



Sent from my V9 using Bimmer App
__________________

I can help with
* Reading Codes / Coding your car
* R&R FCAs, Tie Rods, Sway links....
* RTABs

Need an RTAB tool? Or clutch fan and water pump tools? PM me.
Ballistic325 is offline   Reply With Quote
Old 12-16-2012, 04:23 PM   #20
[SeN]
Registered User
 
Join Date: Jul 2009
Location: Melbourne, VIC
Posts: 188
My Ride: 2002 M3 Imola Red
Well assuming that your coolant is fresh than most likely its your fan clutch is starting to go.
__________________


Bilstein PSS10 /// Vorshlag Camber Plates /// Turner Motorsports RSM /// Rogue Engineering Octane SSK w. ZHP gear knob /// Dice MediaBridge 1500
[SeN] is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 08:43 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use