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172 overheating and the garage cant figure out why.



  Clio sport 172
My 2003 172 overheated on a short drive last week and cooked off most of the coolant. The garage have had a look and they cant find the problem. They have changed the thermostat and the head gasket looks ok. Any help would be greatly appreciated.
 

R-Sport.

ClioSport Club Member
  Mint 1*2's for sale-
I saw a V6 up at 2 techs yesterday - was overheating,

every single blade on the pump had been sheared off. maybe that the reason!
 
  Clio sport 172
I had a new water pump fitted when i had the belts changed a few months ago so hope its not that.
 
  Clio sport 172
Yea the climate control was working fine. Im not sure about the sensor but it did cook off most of the coolant and was bubbling when i opened the reservoir. Looked like there was a airlock aswell because some coolant flowed back into the reservoir when i opened it.
 
  BMW M3, Clio 172
Mine was boiling up and chucking the water out. It turned out to be the the expansion tank cap.
 
  Clio sport 172
Took it to a little renault specialist and it was the head gasket in the end. All done and running like a dream
 

Bluebeard

ClioSport Moderator
  Whichever has fuel
Took it to a little renault specialist and it was the head gasket in the end. All done and running like a dream

In all my years on this forum, all the 172/182's I've had, I've only ever known one 172 blow a head gasket and that was after the guy drove it down the motorway with a cracked radiator.

Very uncommon.
 
  Clio sport 172
The thermostat failed and the gasket went. Its had a reconditioned engine at some point before i bought it so they probably didn't do a very good job.
 
  182
Did you have the belts changed during the headgasket change?? Or just put back together??

As said its like spotting a unicorn as the gaskets don't go on these
 


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