Coolant Temperature - Vauxhall Antara Forums
 
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post #1 of 6 (permalink) Old 18th July 2018, 11:51 Thread Starter
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Hi All

not sure if this is the right place to post but here goes


Does anyone know what temperature the cooling fans are meantto turn on and off at, and what the normal running temperature of the 2.2 CDTi engine should be


I got out of the car the other day and was hit by a wall of heat from the engine bay so check the coolanttemp on the BC and it was 104C no fans were running or warning light on the dashboard or anything


Thanks


Ric


2.2 CDTi 4X4
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post #2 of 6 (permalink) Old 18th July 2018, 15:35
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Welcome to the forum Rickles.

The 2015 OM states that the temperature warning light should illuminate on startup, then extinguish. If it doesn't then there is a problem. If it does when driving then there is a problem. It also gives advice on what antifreeze to use and how important this is. We have had hot weather for perhaps a couple of months now?

I cannot find a reference to the coolant temperature being indicated on the computer - what year is yours? Boiling point of water is 100C so that sounds right. Hot engines work more efficiently than cold ones, provided they don't overheat, so the fan on yours might have been running when you were driving. 104C is about 220F. I don't know what temperature range Vauxhall recommends for these engines, but you might be at the upper limit here.

2015 2.2 CDTi SENav 163ps manual 4x4 in Carbon Flash with 19\" alloy spare towing a Bailey Unicorn III Madrid @ 1500kg.
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post #3 of 6 (permalink) Old 18th July 2018, 16:56
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Not sure about Antara's but normally car engines run at around the operating temp 90C ?

2015 Antara 2.2 Exclusiv 2WD Manual 163 ps Carbon Black
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post #4 of 6 (permalink) Old 18th July 2018, 20:56
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Modern
engines typically run way above the normal boiling point of 212 F. The standard 50/50
antifreeze/water coolant mix raises the boiling point to 223 deg F while a 1
bar (14.7 psi) cap raises it even further to 253 deg F. Had to Google the
figures ‘cos I can't keep them in my head https://www.evanscoolant.com/how-it-...o-overheating/

I don't know what the temperature threshold is to bring on
the cooling fans, I'd assume it's well before the cooling system actually boils.


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2015 Antara Exclusiv 2.2 163ps Manual 2WD
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post #5 of 6 (permalink) Old 19th July 2018, 09:51 Thread Starter
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Thanks for all the info, drivingaround with one eye on the temperature gauge, hasn'tgot that hot again, fingerscrossed it was just a blip
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post #6 of 6 (permalink) Old 19th July 2018, 10:22
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I did a test on a cortina thermostat (in my youf) and it opened at approx. 98/100 dec C, that's not to say that the water temp could be hotter.
Sounds about right.

My wife says that I never listen or something like that !
2.2 diesel Diamond 63. Swift Challenger 580
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