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Discussion Starter #1
Hi everyone,

I,m replacing the NTC sensor and was wondering if (as Bentley says) I have to drain coolant first. On a stone cold engine, will there be coolant spewing out if I don,t?

thanks
yep, I,m a novice :)

Steve
 

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Saab Mad
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14,069 Posts
If you remove the NTC sensor without draining the coolant, then you'll probably lose a litre or so of fluid. However, if you're quick with your finger and then the new sensor you might get away with just a little spill!

On a cold engine, the coolant won't be under pressure and so shouldn't spew anywhere ;) If you want to minimise mess, then you could drain off a couple of litres to be safe.

However, if the cooling system's not been serviced for a while then now might be a good time!

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