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Author Topic: S3 leaking coolant inside!  (Read 1000 times)
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ah_sprite
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« on: 31 May, 2011, 09:00:28 AM »

Hi all
Just thought I'd ask your opinions on this one before I get stuck in.
My car ran for the first time in a long time yesterday. I've replaced the two connections that go into the heater box inside the car. However, my footwells are filling with coolant and I can't see where it's coming from. It's definitely not coming from the two hoses, but appears to be coming out of the bottom of the plastic heater box, then dripping into the centre console.

Any ideas, chaps?
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ncundy
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« Reply #1 on: 31 May, 2011, 09:14:38 AM »

Heater matrix by the sounds of it. Not the easiest job to get out unfortunately.
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1969 Fanalone, Mazda RX-8, Fiat Multipla
fay66
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« Reply #2 on: 31 May, 2011, 09:16:31 AM »

Hi all
Just thought I'd ask your opinions on this one before I get stuck in.
My car ran for the first time in a long time yesterday. I've replaced the two connections that go into the heater box inside the car. However, my footwells are filling with coolant and I can't see where it's coming from. It's definitely not coming from the two hoses, but appears to be coming out of the bottom of the plastic heater box, then dripping into the centre console.

Any ideas, chaps?

Rough guess it's from the heater radiator itself, so I'd join the two hoses together under the bonnet leaving the heater out of the circuit and look to removing the heater, chances are you'll have to get it rebuilt, particularily if it's been standing a long while, not the easiest job in the world, if you put HEATER in the search box at top right, you will find a few related answers from previous queries.
You could always try something like a Bars leak pellet or two, but at best this is only a temporary soluition.
Brian
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« Last Edit: 31 May, 2011, 09:22:02 AM by fay66 » Logged

Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
1999 Suzuki Wagon R+ GL, now my daughters
2006 Renault Megane 1 5 Dci Sports Tourer
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ah_sprite
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« Reply #3 on: 31 May, 2011, 09:52:31 AM »

Yep, until yesterday the car hadn't run properly for 15 or so years. We're getting very close to MOT time, so I'll just cut it out of the circuit for now, then.
The car now starts, runs, drives and stops, so we haven't got too far to go now!

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