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Coolant Levels 2005 STI

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Old Oct 15, 2023 | 06:42 PM
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Default Coolant Levels 2005 STI

Evening everyone,

Has anyone experienced random coolant levels in their reservoir tank on a bugeye STI? When the car has been on a drive, then parked up on level ground, the level of coolant in the reservoir can be on the minimum line, the maximum line or anywhere in between. Is this normal or do I have an issue?

Thanks all.
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Old Oct 15, 2023 | 09:12 PM
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Originally Posted by MrBlueSTI
Evening everyone,

Has anyone experienced random coolant levels in their reservoir tank on a bugeye STI? When the car has been on a drive, then parked up on level ground, the level of coolant in the reservoir can be on the minimum line, the maximum line or anywhere in between. Is this normal or do I have an issue?

Thanks all.
That's an overflow tank (beside the rad) and what you're seeing is normal
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Old Oct 16, 2023 | 01:03 PM
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Thank you very much for such a quick reply.
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Old Oct 16, 2023 | 03:39 PM
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You’ll usually find it’ll be around the min level when cold and the max level when hot due to expansion.
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Old Oct 16, 2023 | 04:16 PM
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Thanks @Dan.jo , I wont top it up, but that's exactly what I am seeing.
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Old Oct 17, 2023 | 08:52 AM
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Should be on full level line when cold and above full level line when hot due to expansion, hence expansion tank.

Last edited by forgedmarco; Oct 17, 2023 at 01:41 PM.
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Old Oct 17, 2023 | 01:11 PM
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As per MY05 Workshop Manual


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Old Oct 18, 2023 | 09:45 AM
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Thanks guys.
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Old Oct 19, 2023 | 12:24 AM
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Sorry for the late reply, same car and depending on its mood the level changes about an inch.
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