dannymccann
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Registered: 9th Aug 06
Location: Doddington, Lincolnshire
User status: Offline
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Ive had my Astra since May, not once have I had to top up the coolant (header tank), its always been on the rim of the tank half way up. Checking it this morning before the missus went to Birmingham and it was down a little, needed about 400ml of water adding to it to take it just over the half way mark.
Question is, do you always lose a little coolant in normal conditions when its cold, or should I be on the lookout for something?
Cheers
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ali_corsa
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Registered: 30th Jun 07
Location: Tamworth Drives: Focus st
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could be your headgasket on its way out, it could explain the drop of the coolant level. check it tomorow or late tonight when she has got back after a few hours just pop outside and check it
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dannymccann
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Registered: 9th Aug 06
Location: Doddington, Lincolnshire
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How? 
edit - I know of the sign about oily mayo or shit in the header tank, neither of which applies, oil change was done last weekend it was nice and black and smooth, and water is clear as anything
[Edited on 06-12-2008 by dannymccann]
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ali_corsa
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Registered: 30th Jun 07
Location: Tamworth Drives: Focus st
User status: Offline
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do you know anyone that works in a garage that does mot's?
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dannymccann
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Registered: 9th Aug 06
Location: Doddington, Lincolnshire
User status: Offline
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Nah no one i know, whats the suggestions? IVe not noticed any misfires either, which was a symptom in my old corsa when its HG went
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ali_corsa
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Registered: 30th Jun 07
Location: Tamworth Drives: Focus st
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i was going to say if you know anyone, get them to stick the exhaust probe in the coolant tank, whilst the engine is ideling and just check out the hydrocarbons...
when did you last check the level? just keep an eye on it and see how it goes
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dannymccann
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Registered: 9th Aug 06
Location: Doddington, Lincolnshire
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Fair while ago tbh, I do oil checks twice a week, tyres once a week and tend to check the coolant once a month tbh as it never loses any, I only looked this morning and saw it was down a little bit, the temp gauge in the car never goes above 90, even if its stuck in traffic for yonks, and the fan never speeds itself up or anything, runs a dream tbh 
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
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Always check it when the engine is cold, the level goes up a bit when the engine warms up. You may have a leak somewhere, just keep an eye on it.
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deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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I'd blame a leak more than your headgasket going. Just keep an eye on it. Cold weather could have caused the pipes to go a bit brittle etc. If it's running fine, I wouldn't worry, just keep an eye on it!
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daymoon
Premium Member
Registered: 1st Aug 08
Location: Selby, North Yorkshire
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i have same problem on my 12v...
there is only one small oil leak, but not water.. no mayo under the cap or the dip stick... needs topping up once in 1k miles  thats half the water tank.
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luke85
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Registered: 26th Nov 07
Location: Chesterfield
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There can be small leaks on the pipes, much more likely than the headgasket going. Also if the cap leaks a little it can let the water evaporate out when its pressurised
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dannymccann
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Registered: 9th Aug 06
Location: Doddington, Lincolnshire
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Im thinking the cap or the pipes as above as its only started now and theres no other symptoms of HGF, ill keep an eye on it for now, the DTi engine is supposed to be hard as nails 
Thanks all for your input 
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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quote:
Originally posted by daymoon
i have same problem on my 12v...
there is only one small oil leak, but not water.. no mayo under the cap or the dip stick... needs topping up once in 1k miles thats half the water tank.
Make sure the water pump isn't leaking. Its not uncommmon on those engines.
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