Slow coolant leak

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Originally Posted by DiscoJeffster

Bottle isn’t leaking. Genuine cap. Leaks there are obvious as the coolant leaves a lovely trail.

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Mine doesn't leave any trail.. Just a smell, the lack of pressure allows the coolant to boil off. Although mine took a couple month's to need a top up.

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Originally Posted by josh.huber

Mine doesn't leave any trail.. Just a smell, the lack of pressure allows the coolant to boil off. Although mine took a couple month's to need a top up.

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Hmmm. I have a crap bottle but a new genuine cap. I have a new tank. Maybe I should just change it and hope for the best

Quote:

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Originally Posted by DiscoJeffster

I seem to have one. Losing coolant slowly over time. I can smell it when the engine is turned off but I can’t see the telltale signs anywhere. Losing around high to low on the bottle over a month or two.

I was thinking egr but then I’d not thought I’d smell it. I previously replaced the crossover when that bleed failed so it’s not that.

No drips, obvious leaks.

I guess I need to take it in and get a pressure test done.

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Had same thing on my D3.
The plastic fitting at the front of the engine, in the “V” was leaking, not enough to drop to the ground, but enough for a hot engine to evaporate and make the smell. Also the plastic fitting has a history of suddenly failing and dropping your entire coolant amount in a very short time.
Heaps of discussion on here about whether replacing wit OEM or Metal fabricated special is the best way to go. It’s one of the easier jobs to do yourself on a Discovery.

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Originally Posted by rdenyer

Had same thing on my D3.
The plastic fitting at the front of the engine, in the “V” was leaking, not enough to drop to the ground, but enough for a hot engine to evaporate and make the smell. Also the plastic fitting has a history of suddenly failing and dropping your entire coolant amount in a very short time.
Heaps of discussion on here about whether replacing wit OEM or Metal fabricated special is the best way to go. It’s one of the easier jobs to do yourself on a Discovery.

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Cheers. That’s new too. I guess I’m looking for an uncommon leak point.