High water temperature issue

[escarolo]

Hi all!

This weekend I really enjoyed my CSL but connecting the A.C. the temperature gauge exceeded 3/4 and almost reached the red zone, even driving into highway, 100-110 kms/h, 35º C outside.

Any idea?

Best regards

[NZ_M3]

I would check the thermostate first - it might be stuck closed or half way open causing the temperature to rise when there's more load on the engine - i.e. the aircon pump going.

Failing that it might be the water pump.

Another thing to check is to see if your fan is engaging - the fan clutch might be worn out and not coming on.

[shimmy]

Hi all!

This weekend I really enjoyed my CSL but connecting the A.C. the temperature gauge exceeded 3/4 and almost reached the red zone, even driving into highway, 100-110 kms/h, 35º C outside.

Any idea?

Best regards

my occassional heat issue is on track only, at 100% throttle and on very hot days ONLY so not totally like yours. The minute i come off the throttle it will be back to norm within one or two bends

let us know if you solve it"

[escarolo]

I will change thermostat and fan clutch.

Thanks!!!

[shane@mbtech]

I will change thermostat and fan clutch.

Thanks!!!

Dont do fan clutch, if its getting hot when moving its not the viscous fan

If however its getting hot when standing, then cools as soon as you drive, I would suggest the viscous fan coupling. :thumbs:

Easiest, cheapest thing is stat as suggested.

[escarolo]

Dont do fan clutch, if its getting hot when moving its not the viscous fan

If however its getting hot when standing, then cools as soon as you drive, I would suggest the viscous fan coupling. :thumbs:

Easiest, cheapest thing is stat as suggested.

Fan clutch price is not so high, so I prefer to change it. The car has 80.000 kms, so sooner or later I will have to change it.

What about water pump? Should I change it or wait until it fails?

[shimmy]

Fan clutch price is not so high, so I prefer to change it. The car has 80.000 kms, so sooner or later I will have to change it.

What about water pump? Should I change it or wait until it fails?

i changed water pump first even tough £400 as if it fails it could be the end of the engine

[_Nathan_]

Shim - have you considered the lower temp stat, might help keep things under control while you work out what is going on?

http://www.turnermotorsport.com/html/detail.asp?PRODUCT_ID=11531417215

[shimmy]

Shim - have you considered the lower temp stat, might help keep things under control while you work out what is going on?

http://www.turnermotorsport.com/html...ID=11531417215

its a possible option :thumbs:

[shane@mbtech]

Shim - have you considered the lower temp stat, might help keep things under control while you work out what is going on?

http://www.turnermotorsport.com/html...ID=11531417215

Is this the tropical stat the gorilla talked about?

Its worth a punt for the price Shimmy

[_Nathan_]

Think so, that is the one I have in mine anyway.

[shimmy]

But it does not increase the cooling it just makes it start earlier

on the odd occassion mine gets hot it's heat soaked at full throttle on. Boiling day

not gonna make any difference except make it start half a lap later!

[_Nathan_]

Wasn't saying it is a complete fix, just to help you keep it under control until you find the root cause

It isn't going to make things worse either way!

[escarolo]

Also, the Motorsport T-stat will turn on the SES light.

I ordered SACHS fan clutch yesterday, let´s see what happens.

Best Regards

[_Nathan_]

SES light?