SEAT Toledo II (1999 - 2004) - 00 1.8 strange cooling system major probs

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Sat 5 Sep 2009 13:00
00 1.8 strange cooling system major probs - meltonlad
ive just done a 5 mile drive but when i got back steam was coming from the bonnet. the water was boiling away in the expansion bottle and it was pooring with steam from the overflow pipe. temp gauge was on 90 (normal) fans kick in when they shouls do. what could be the problem ???
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Sat 5 Sep 2009 13:53
00 1.8 strange cooling system major probs - davecuk
Head gasket perhaps, or some blockage in cooling system, plastic bag sucked onto the rad. Temp gauge probe was probably not in the coolant. You will have to have a good look around the engine for some clues.

Edited by davecuk on 05/09/2009 at 13:54

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Sat 5 Sep 2009 14:30
00 1.8 strange cooling system major probs - Falkirk Bairn
Thermostat is my 1st thought
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Sat 5 Sep 2009 15:42
00 1.8 strange cooling system major probs - Wurzel83
Thermostat is my 1st thought


Mine too. Although it is strange that the temp guage is as normal. Worth looking at the coolant temperature sensor too.
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Sat 5 Sep 2009 15:45
00 1.8 strange cooling system major probs - Peter D
Check form cold/cool for rapid cooling system over pressurisation or have the header tank sniffed for combustion gasses. Suspect HG failure. Regards Peter
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Sat 5 Sep 2009 15:52
00 1.8 strange cooling system major probs - meltonlad
no funny smells from expansion bottle. ive just replaced the thermostat so im off for a drive.... fingers crossed !!!!!
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Sat 5 Sep 2009 16:16
00 1.8 strange cooling system major probs - Peter D
You need the header tanked sniffed with a gas analyzer or a special special fluid which changes colour when combustion gases are drawn through it. Regards Peter
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