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Old 25th November 2021, 18:30   #30
SD1too
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Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

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Quote:
Originally Posted by Firmus Piett View Post
I am reluctant to replace the thermostat yet, I will wait until it splits or acts up, which I know is likely every two or three years with these cars.
Hi Darren,

It's a common assumption that the thermostat housing splits. It doesn't. The leak comes from the flattened 'O' ring at the housing base. The resulting spray of coolant coats the housing seam and accordingly misleads people.

It also isn't likely every two or three years if you follow RAVE's instructions (hard to interpret I admit) when assembling the coolant parts in the 'V'.
Quote:
Originally Posted by Firmus Piett View Post
It always shows normal for any reading between 75° and 105° ...
The upper limit is even worse than you warn Darren; it's 115°! This phenomenon is nothing to do with MG Rover. All marques do it now. It persuades the non technically minded motorist that huge technological advances have been made.

Simon
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Last edited by SD1too; 25th November 2021 at 18:33..
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