C1OC - CityBugClub - Citroen C1, Peugeot 107, 108 & Toyota Aygo Owners Club

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 Post subject: Drinking Coolant
PostPosted: Sun Oct 01, 2017 11:48 pm 
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Joined: Sun Oct 01, 2017 11:36 pm
Posts: 2
Drives: Citroen C1 2008
Hi All!

Newby here...

My 2008 C1 seems to be drinking coolant. There is no sign of water in the oil or oil in the water etc...

Also, there is no obvious signs of a leak from the radiator or pipes etc...

Could anyone advise me of where i should look next? Are there any subtle leaks at all? Or is the C1 etc known for leaking coolant in specific places?
Any advise would be appreciated!

Thank you!!


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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 7:32 am 
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Joined: Mon May 17, 2010 10:33 pm
Posts: 15498
Location: Wiltshire
Drives: Ice cream van
Get a compression test done to rule out head gasket

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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 8:56 am 
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Joined: Sat Apr 20, 2013 5:05 pm
Posts: 208
Drives: Electric C1
Look inside to ensure its not in or under the carpet. ie leaking heater.
Head gasket most likely though, assuming you cant see any leaks anywhere else.


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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 9:25 am 
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Joined: Wed Apr 27, 2011 8:31 pm
Posts: 4431
Location: Motherwell
Drives: Citroën C1
Agreed most likely to be a head gasket

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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 11:54 am 
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Joined: Sun May 06, 2012 4:19 pm
Posts: 3717
Drives: 2006 C1
Hi and welcome to the club here’s a link to short video to take you through the process of pressure testing.
Good Luck
If you need more help the guys here are more than willing to help.

https://youtu.be/K5p-G3UDi-A


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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 8:13 pm 
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Joined: Sun Oct 01, 2017 11:36 pm
Posts: 2
Drives: Citroen C1 2008
Thanks everyone I’ll check everything you’ve said then get back to you!


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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 9:43 pm 
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Joined: Tue Apr 11, 2017 5:41 pm
Posts: 32
Drives: Aygo Black & STI
Check the radiator carefully - look where the plastic top / bottom joins the metal - the crimps sometime weaken and you get small leaks that "jet" out and might not land on anything to show there's a problem.
To help while looking, squeeze the top hose to pressurise the system.

Also check around the water pump, all the hoses and all the hose connections for any pin prick holes etc.


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 Post subject: Re: Drinking Coolant
PostPosted: Mon Oct 02, 2017 10:35 pm 
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Joined: Tue Oct 01, 2013 1:09 pm
Posts: 54
Drives: Peugeot 107
My MR2 started losing coolant earlier in the year. There were no puddles on the floor and no coolant coloured staining anywhere. The rad was threadbare in the bottom corner though as it had been peppered with small stones over 17 years.

You only get puddles if you have drips. If there is a hairline crack somewhere, the coolant will only come out under pressure, which is when you're using revs. Inspect the rad carefully. Look for staining, even a little bit. You might have to clean old staining off then check again after a drive. Is there an undertray you could tape kitchen roll to? Go for a drive and inspect afterwards for signs of leaks.


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 Post subject: Re: Drinking Coolant
PostPosted: Tue Oct 03, 2017 8:20 am 
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Joined: Mon May 17, 2010 10:33 pm
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Location: Wiltshire
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smart51 wrote:
My MR2 started losing coolant earlier in the year. There were no puddles on the floor and no coolant coloured staining anywhere. The rad was threadbare in the bottom corner though as it had been peppered with small stones over 17 years.

You only get puddles if you have drips. If there is a hairline crack somewhere, the coolant will only come out under pressure, which is when you're using revs. Inspect the rad carefully. Look for staining, even a little bit. You might have to clean old staining off then check again after a drive. Is there an undertray you could tape kitchen roll to? Go for a drive and inspect afterwards for signs of leaks.
Welcome fellow mr2 owner

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 Post subject: Re: Drinking Coolant
PostPosted: Tue Oct 03, 2017 8:29 am 
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Joined: Mon Apr 17, 2017 7:04 pm
Posts: 132
Drives: peugeot 107
if you need help i can show you how to make a simple pressure tester for around £3 and can be used time and time again on any car
Ron


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