Help - What would you do?

Depending what audio system your car has..

On your stereo hold down the settings button until your hear a beep (about 5 seconds) then use the BC button to scroll through the test menu's there will be one with coolant temp..

Your car will be fine, no need to buy a new one because of this..
 
The old system broke, so it has a new sony head until in it.

I did know abouth the hidden menu, anyway to get it without the Vauxhall sterio??
 
Like peeps have said there is that hidden menu, and all other years and models have them just not 2004!

I guess they saw the mistake and changed it back the following year.
 
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