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 10:41 AM
Cooling system Nightmare Triumph fan First Generation MINI Cooper 5 Dec 27th, 2012 07:21 PM
Cooling Problems Triumph fan First Generation Faults & Fixes 4 Dec 24th, 2012 02:01 PM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old May 15th, 2014, 07:24 PM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 2
Local Time: 03:43 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, 07:51 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,190
Local Time: 03:43 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, 08:09 PM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 2
Local Time: 03:43 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, 08:49 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,190
Local Time: 03:43 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 10:41 AM
Cooling system Nightmare Triumph fan First Generation MINI Cooper 5 Dec 27th, 2012 07:21 PM
Cooling Problems Triumph fan First Generation Faults & Fixes 4 Dec 24th, 2012 02:01 PM

» Recent Threads
I need a tool to flash a JCW map to my 04 MCS ECU
Yesterday 09:42 PM
Last post by djtmalta
Yesterday 10:36 PM
2 Replies, 97 Views
LED Daytime running lights - retro fit
Apr 15th, 2014 06:08 PM
Last post by french01
Yesterday 09:17 PM
6 Replies, 1,395 Views
Electric window stopped working
Jul 6th, 2006 03:48 PM
Last post by regarp
Yesterday 06:22 PM
34 Replies, 65,930 Views
Bonnet touching body
Aug 15th, 2014 03:47 PM
Last post by The Nun
Yesterday 03:58 PM
3 Replies, 441 Views
Facebook page selling mini parts around the uk
Yesterday 11:50 AM
by Alex93x
Last post by Restyle
Yesterday 03:25 PM
2 Replies, 134 Views
New Mini Cooper D - Worth the money?
Yesterday 01:33 PM
Last post by dangoodwin
Yesterday 01:33 PM
0 Replies, 116 Views
Mini Clubman Barn Doors Won't Lock
Oct 22nd, 2014 03:51 AM
Last post by WeeBad
Yesterday 01:03 PM
3 Replies, 421 Views
R56 Footwell module dead
Jul 15th, 2014 04:19 AM
by miniuy
Last post by k3fus
Yesterday 07:16 AM
6 Replies, 1,281 Views
inside lights
Oct 23rd, 2014 11:19 PM
Last post by bigmamabear
Oct 23rd, 2014 11:19 PM
0 Replies, 168 Views
Lights on warning not working
Oct 21st, 2014 11:42 AM
by S2dicky
Last post by S2dicky
Oct 23rd, 2014 09:16 PM
4 Replies, 477 Views
Smoked Headlight Covers GTO276S
Oct 23rd, 2014 08:49 PM
by tmath23
Last post by tmath23
Oct 23rd, 2014 08:49 PM
0 Replies, 175 Views
engine fan on more frequently
Oct 16th, 2014 01:46 PM
Last post by stewarth
Oct 23rd, 2014 07:27 PM
3 Replies, 655 Views
Cooper S judders when idle...
Jul 17th, 2010 04:53 PM
by ben_uk
Last post by Restyle
Oct 23rd, 2014 06:18 PM
6 Replies, 1,120 Views
R56 Aux input volume???????
Oct 20th, 2014 04:00 PM
Last post by Dermottdog
Oct 23rd, 2014 06:00 PM
4 Replies, 566 Views
Start/Stop engine button illuminated when car is locked
Oct 21st, 2014 08:07 PM
Last post by The Nun
Oct 23rd, 2014 05:03 PM
6 Replies, 566 Views
Wheel arch - advice please :)
Oct 22nd, 2014 10:08 PM
Last post by The Nun
Oct 23rd, 2014 05:00 PM
2 Replies, 264 Views
No spray on windshield wiper
Oct 19th, 2014 08:54 PM
by mom7x
Last post by CCroker
Oct 23rd, 2014 01:57 PM
2 Replies, 455 Views
Will I get jipped?
Oct 21st, 2014 11:14 PM
Last post by CCroker
Oct 23rd, 2014 01:52 PM
3 Replies, 393 Views
Rear wiper motor stem problem
Oct 18th, 2014 09:57 AM
Last post by ihughes
Oct 23rd, 2014 01:34 PM
4 Replies, 581 Views
2010 Cooper S
Oct 23rd, 2014 01:13 PM
Last post by mike_1979
Oct 23rd, 2014 01:13 PM
0 Replies, 223 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 02:43 AM.



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