2005 Vauxhall Astra 1.7 cdti Complete loss of coolant

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Big-Nelly
Fixes: 2
Problem added: Oct 25, 2009 (10 years ago)
Discovered that we have completely loss all coolant to engine. Appears to be no damage to hoses, tank or radiator. Oil is not showing signs of water contamination. Car was service in last 2 weeks and coolant level was good.
What ciould be the problem?
Are thre any simple test to do that would allow to idnetify problem before taking to Garage?

Thanks

Car details
Car: Vauxhall Astra
Variant: 1.7 cdti
Model Year: 2005
Category: Engine & Drivetrain

Recalls: Vauxhall Astra Recalls
More: Vauxhall Astra Problems
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Replies and fixes
Avatar
Tazzy8
Fixes: 3
Oct 25, 2009 (10 years ago)
Even if you dont physically see the coolant leaking, it could be a cracked cylinder head, with the coolant seaping into the fuel.

Try running the car and going to the exhaust. If you smell a "sweet" smell coming from the back, this could be the problem. Look at your oil cap, is it sludgy or greasy? Could be a cracked head or similar.

Better take it to garage to be safer rather than sorry.
Avatar
Big-Nelly
Fixes: 2
Oct 26, 2009 (10 years ago)
The oil cap is not greasy or smudggy.

All the coolant is gone (went very rapidly), so the testing the exhaust is bit diffcult.

Was suggested that the head gasket had gone, but none of the signs of these failure are there to confirm this.

Also Suggested that cause could be a leak from water pump - how do you confirm this?
Avatar
whittingehame
Fixes: 12,498
Oct 28, 2009 (10 years ago)
A pressure test on cooling system will show any external leaks on cooling system , hoses , rad , water pump etc .If all ok , a sniff test will tell if cyl head / gasket gone .Simple tests .
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