[Mk2] [NA] Coolent level dropping?

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ChefAngus
Posts: 29
Joined: Fri Sep 11, 2009 12:19 am

[Mk2] [NA] Coolent level dropping?

Post by ChefAngus »

Can someone pls explain why my coolent level keeps dropping under the pressure cap but not in the reserve tank?
This doesn't make sense to me. Surely the coolent should run out in the reserve tank before the level drops in the main system!
I am confused pls help.
going4the1
Posts: 417
Joined: Tue Jan 22, 2008 12:28 pm
Location: Cleveland

Re: [Mk2] [NA] Coolent level dropping?

Post by going4the1 »

It is normal not to be able to see any coolant when removing the pressure cap. If it comes into view when you squeeze the broad rubber hose leading off the neck then it's OK.

I can't explain why this should be either.
TheRoadWarrior
Posts: 1052
Joined: Wed Jul 06, 2005 9:43 pm

Re: [Mk2] [NA] Coolent level dropping?

Post by TheRoadWarrior »

I think its because the coolant finds its own level between the filler neck and the expansion bottle- so fluid that you put into the filler neck will 'level' out to the same level in the expansion bottle.
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blue2
Posts: 3013
Joined: Wed Jan 26, 2005 2:12 am
Location: The Wirral

Re: [Mk2] [NA] Coolent level dropping?

Post by blue2 »

If you cant see coolant in the filler neck fill it up. Check again a few days later and fill again if necessary, if it still drops you have a leak. Ideally the level should be right up there. Mine is always right up to the top of the filler neck. Check the jubilee clips are tight on all the hoses as this was where mine was leaking from.
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