cooling system problems - MINI Cooper Forum
Go Back   MINI Cooper Forum > MINI Technical Forums > Maintenance & MINI Care


Maintenance & MINI Care
Find Sponsor products associated with this forum
Questions and advice on keeping your MINI in top shape, from engine oil to body wax

Mini2.com is the premier Mini Cooper Forum on the internet. Registered Users do not see the above ads.
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
Mystery cooling problems with One 2003 1.4D tibiwibi786 First Generation Faults & Fixes 0 Apr 28th, 2014 11:41 AM
Cooling system Nightmare Triumph fan First Generation MINI Cooper 5 Dec 27th, 2012 08:21 PM
Cooling Problems Triumph fan First Generation Faults & Fixes 4 Dec 24th, 2012 03:01 PM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old May 15th, 2014, 08:24 PM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 2
Local Time: 03:21 AM
cooling system problems

Hi all

I am helping a friend who doesn't know what end of the spanner to hold with his mini. He has a 2002 mini cooper s and it started to overheat. When he got me to look at it there was no coolant in it, I started to look why and popped out the thermostat, which was stuck shut. I changed that and filled it back up but it seems like there is an air lock left in it. The coolant is circulating round the engine you can see the colour change with the anti freeze but the fan wont kick in and then it boils over. All the time the temperature guage only gets to half way and stays there no matter if the engine boils over. Is it likely to be an air lock that I have not shifted or something like the temperature sender not telling the fan to switch on? Any help is much appreciated

Thank you in advance


Gareth
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old May 15th, 2014, 08:51 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,199
Local Time: 03:21 AM
United Kingdom Male
Hi ya

The gauge is for show only do not trust it, ideally you need a scan gauge of diagnostic tool to keep an eye on the coolant temp.
You can access it though the IKE this link will help you look at fig 36 select it to test 7 and you can keep an eye on it

You must bleed the system correctly this link will help you :-)

http://www.mini2.com/forum/maintenan...screw-plz.html

You must use the correct coolant to halfords sell it

Halfords | Comma G48 Antifreeze and Coolant Conc 2L

Check all your fuses and relays for the fans in the engine bay fuse box.
If the car has A/c run the car turn it on the second stage fan should cut in after a bit then turn off and back on. If this works your first stage fan resistor has most probably gone

This link will help post no 8

http://www.mini2.com/forum/general-d...t-problem.html


Hope this helps just take your time don't rush bleeding the system
Reply With Quote
  #3 (permalink)  
Old May 15th, 2014, 09:09 PM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 2
Local Time: 03:21 AM
Hi marque

Thanks for the quick reply

When the car is idling it would not overheat as long as the air con was on but even then the fan was not spinning. As soon as the air con is switched off the engine boils the coolant. Do you think the fan resistor is shot not switching the fan on? Is there a best way of testing it?
Reply With Quote
  #4 (permalink)  
Old May 15th, 2014, 09:49 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,199
Local Time: 03:21 AM
United Kingdom Male
Quote: Originally Posted by gareth1982 (original)
Hi marque

Thanks for the quick reply

When the car is idling it would not overheat as long as the air con was on but even then the fan was not spinning. As soon as the air con is switched off the engine boils the coolant. Do you think the fan resistor is shot not switching the fan on? Is there a best way of testing it?

The mini has two stages of fan.
Low speed cuts in at 105 deg c and second cuts in at 112 deg c
This is why it's important you have the correct coolant
And you must bleed it properly or it will keep over heating

As said before read post 8 it tells you how to check the resistor

http://www.mini2.com/forum/general-d...t-problem.html

Also make shore the supercharger belt is ok as this belt runs the supercharger and the water pump is run from the supercharger

If you look at the picture attached you will see he has used an Alan key
To lock the tensioner stop, so you see two holes Alan key in one other one free
When that top hole is no longer visible you need the belt changed.
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	10
Size:	187.4 KB
ID:	174234  
Reply With Quote
Sponsored Links
Advertisement
 
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mystery cooling problems with One 2003 1.4D tibiwibi786 First Generation Faults & Fixes 0 Apr 28th, 2014 11:41 AM
Cooling system Nightmare Triumph fan First Generation MINI Cooper 5 Dec 27th, 2012 08:21 PM
Cooling Problems Triumph fan First Generation Faults & Fixes 4 Dec 24th, 2012 03:01 PM

» Hot Topics This Week
What type of person drives a MCS - (91 replies)
More Ship Tracking - (29 replies)
front bushes..... - (16 replies)
exhaust manifold glowing red on cooper s - (16 replies)
Burned exhaust valves on R56 Cooper S - (15 replies)
» Recent Threads
High Centered My R56
Nov 27th, 2014 02:57 AM
Last post by qwiksilver
Today 01:56 AM
5 Replies, 328 Views
Wont go above 45
Today 01:54 AM
Last post by Jakeostler17
Today 01:54 AM
0 Replies, 9 Views
DSC fault while driving
Today 01:19 AM
by hyvrid
Last post by hyvrid
Today 01:19 AM
0 Replies, 11 Views
Finding Final Stage (Hedgehog) Resistor
Jul 29th, 2014 09:48 PM
Last post by crackernibbles
Today 12:58 AM
11 Replies, 1,128 Views
$95 @ Willow Springs raceway November 29-30, 2014
Nov 22nd, 2014 02:06 AM
by harvie
Last post by harvie
Today 12:54 AM
1 Replies, 185 Views
03 Mini One Oil Pressure
Nov 27th, 2014 10:40 PM
Last post by mab01uk
Yesterday 06:53 PM
2 Replies, 192 Views
Mini one power steering
Yesterday 12:42 PM
Last post by mab01uk
Yesterday 06:42 PM
3 Replies, 146 Views
Run flat/ DSC light fault
Yesterday 02:36 PM
Last post by Caveman
Yesterday 06:08 PM
2 Replies, 133 Views
Bonnet Catch not Latching
Nov 25th, 2014 08:28 PM
Last post by tnoy66
Yesterday 12:38 PM
8 Replies, 436 Views
Heeeelllp!!
Yesterday 10:28 AM
Last post by cristo
Yesterday 12:36 PM
1 Replies, 165 Views
Expansion Tank - Alternatives?
Nov 25th, 2014 08:51 PM
Last post by ihughes
Yesterday 11:35 AM
3 Replies, 335 Views
Gtt260 mcs seen
Jul 13th, 2014 12:58 PM
by Pops123
Last post by ihughes
Yesterday 11:24 AM
3 Replies, 575 Views
JCW Turbo wastegate issue??
Nov 12th, 2014 08:19 PM
by jonnie
Last post by Richard of the Hills
Yesterday 11:22 AM
1 Replies, 328 Views
Mini Servicing, non "Mini Garage"
Jan 12th, 2014 09:44 AM
Last post by Richard of the Hills
Yesterday 10:52 AM
6 Replies, 1,910 Views
RC Italian Job 2014
Nov 27th, 2014 12:13 AM
by mab01uk
Last post by The Nun
Yesterday 09:54 AM
2 Replies, 325 Views
mini one d
Nov 27th, 2014 09:59 PM
Last post by The Nun
Yesterday 09:53 AM
1 Replies, 182 Views
2005 mcs throttle monitoring fault
Yesterday 12:37 AM
Last post by crazyyardie
Yesterday 12:37 AM
0 Replies, 212 Views
Supercharger Oil
Nov 25th, 2014 08:34 PM
Last post by markwazere
Nov 27th, 2014 09:14 PM
2 Replies, 324 Views
New mini
Nov 27th, 2014 07:40 PM
Last post by Stefan1127
Nov 27th, 2014 07:40 PM
0 Replies, 173 Views
Review - AEM Cold Air Intake
Nov 27th, 2014 10:13 AM
Last post by mikewake
Nov 27th, 2014 10:13 AM
0 Replies, 179 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 02:21 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2