MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: SCOTTG on May 1, 2022, 15:58

Title: Overheating problem
Post by: SCOTTG on May 1, 2022, 15:58
Just got my car taxed after being parked up for winter. I have no heat coming into car and engine is overheating. Also just noticed a small water leak coming from front of car. Plenty of coolant in tank. Any ideas?
Title: Re: Overheating problem
Post by: Joesson on May 1, 2022, 17:12
Quote from: SCOTTG on May  1, 2022, 15:58Just got my car taxed after being parked up for winter. I have no heat coming into car and engine is overheating. Also just noticed a small water leak coming from front of car. Plenty of coolant in tank. Any ideas?
Chief suspect in my experience is the radiator.
Remove front plastics and give the rear bottom left of the radiator a good looking at. It won't get better by itself. A replacement is not too costly. If long life coolant it is possible to clamp the two hoses and catch most of the coolant. I lost < 1 L doing it that way. If not ( fresh) long life take the opportunity to flush the system through and renew.
Title: Re: Overheating problem
Post by: 1979scotte on May 1, 2022, 17:29
As above my money would be on a knackered radiator.
Title: Re: Overheating problem
Post by: Ardent on May 1, 2022, 17:52
+1 to the above

Coolparts I think people use.
Title: Re: Overheating problem
Post by: Gaz mr-s on May 1, 2022, 19:18
https://www.ebay.co.uk/itm/234294386151?fits=Plat_Gen%3AMK+III%7CModel%3AMR2&epid=16029460812&hash=item368d089de7:g:PDAAAOSwUQJhl1zJ   £48 - 2 year warranty.

or https://www.ebay.co.uk/itm/282665232522?fits=Plat_Gen%3AMK+III%7CModel%3AMR2&hash=item41d029288a:g:1HQAAOSwq8Feb5M3   £67 & 5 year warranty.
Title: Re: Overheating problem
Post by: Joesson on May 1, 2022, 20:06
I have mentioned on here a problem I had with a Coolparts rad, when outside of warranty.
With reference to the photo of the part on eBay in the top left of the radiator can be seen a circular protuberance.
When fitted this must have been blocked off in some way. When out of  it's then 2 year warranty whatever was blocking it blew out and I lost all of my very new Toyota Long Life coolant.
I did speak with Coolparts but they claimed no knowledge of previous occurrence nor the area I was referring to.
 After being rescued by Start Rescue, I jubilee clipped  a short rubber hose onto the offending item and blocked the hose end with a plug and jubilee clip.
The rest of the radiator is now several more years past it's warranty.