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Thread: Slow coolant leak

  1. #11
    josh.huber Guest
    Quote Originally Posted by DiscoJeffster View Post
    Bottle isn’t leaking. Genuine cap. Leaks there are obvious as the coolant leaves a lovely trail.
    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.

  2. #12
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    Slow coolant leak

    Quote Originally Posted by josh.huber View Post
    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.
    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
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

  3. #13
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    Check the plastic cross over fitting at the front of the engine

    Quote Originally Posted by DiscoJeffster View Post
    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.
    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.

    2005, MY05 Discovery TDV6, SE Silver (from new) IID tool, BAS Map, EGR Blank, Traxide DT90

  4. #14
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    Quote Originally Posted by rdenyer View Post
    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.
    Cheers. That’s new too. I guess I’m looking for an uncommon leak point.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

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