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Thread: sudden coolant leak?

  1. #11
    Join Date
    May 2013
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    Norfolk
    Posts
    25
    Lottie, there are several posters here who will take any opportunity to say how terrible the mhd engine is, and warn everybody not to get one otherwise you will destroy your engine. We are not all like that! I have recently bought a brand new mhd smart, and there are many thousands of them happily driving around at this moment. I cannot help you with your coolant problem I'm afraid, but I hope you get the problem sorted out easily. And it may be nothing to do with the belt at all...

  2. #12
    Join Date
    Jan 2009
    Location
    Rugby
    Posts
    3,166
    Quote Originally Posted by NorfolkSmart View Post
    Lottie, there are several posters here who will take any opportunity to say how terrible the mhd engine is, and warn everybody not to get one otherwise you will destroy your engine. We are not all like that! I have recently bought a brand new mhd smart, and there are many thousands of them happily driving around at this moment.
    Ignorance is bliss. All those drivers are driving around a huge financial risk. Just because you chose to take that risk, doesn't mitigate the fact that the cars are inherently flawed to the point that in a matter of minutes, the engine could well need replacing.

    Lottie, unfortunately, 2 mins from home is too long to drive with the light on. I can't see why the coolant would leak if the belt went, but you need to get the car to smart ASAP. If you can, trade it in when resolved!

    Anastasia
    Mr Poo - Mk5 450 Pulse
    Honky - 451 Passion Diesel
    Nellie - 2014 Mitsubishi Outlander

  3. #13
    Join Date
    Apr 2009
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    Ecosse
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    Quote Originally Posted by MrPoo View Post
    I can't see why the coolant would leak if the belt went,
    Overheat = boiling of coolant = over pressurisation of cooling system = release of coolant at filler cap of expansion bottle/reservoir.

    But this easier.



    Does leave your arse a bit exposed though.....

  4. #14
    Join Date
    Jan 2009
    Location
    Rugby
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    Add that to the things I've learnt then!

    No need to be mean, all we can do is advise as many potential/new owners before this happens.

    Anastasia
    Mr Poo - Mk5 450 Pulse
    Honky - 451 Passion Diesel
    Nellie - 2014 Mitsubishi Outlander

  5. #15
    Join Date
    Apr 2009
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    Quote Originally Posted by MrPoo View Post
    No need to be mean, all we can do is advise as many potential/new owners before this happens.
    Only if they are here to hear or see....

  6. #16
    Join Date
    May 2013
    Location
    Norfolk
    Posts
    25

    Cool

    Actually, with all the comments about the mhd, I think that there are several posters on here who are doing their utmost to STOP people buying a smart car. A diesel is not the best choice for some people and not everyone wants the extra costs associated with the 84bhp engine. It's such a shame that when a newbie posts, asking for advice or support, the immediate response seems to be - well you shouldn't have bought an mhd in the first place. I find it all rather tiring - and the result will be fewer smarts on the road, and I'd much rather be seeing more. There aren't enough to wave to as it is! Oh well, that's what I think; let's see what the response to this is!!

  7. #17
    Join Date
    Apr 2009
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    Quote Originally Posted by NorfolkSmart View Post
    . A diesel is not the best choice for some people and not everyone wants the extra costs associated with the 84bhp engine.
    So the best choice is the one with ythe engine that's known to fail catestrophically.

    Quote Originally Posted by NorfolkSmart View Post
    It's such a shame that when a newbie posts, asking for advice or support, the immediate response seems to be - well you shouldn't have bought an mhd in the first place.
    If they arrive in time they are being told 'do not buy an MHD'. All that changes is the tense.
    No cars are without problems. I mean, if smarts had a reputation for being bulletproof - but that would take Roadsters that never leak, 450s who's engines last forever, MHDs that.... Fools rush in.....

    Quote Originally Posted by NorfolkSmart View Post
    I find it all rather tiring - and the result will be fewer smarts on the road, and I'd much rather be seeing more. There aren't enough to wave to as it is!
    Waving from the kerbside or hard shoulder from within a cloud of steam. What a strange idea of driving you have!

  8. #18
    Join Date
    Apr 2005
    Location
    Belper, England
    Posts
    1,120
    Lottie where in the UK are you? If Smart wont fix it for you under warranty then we should be able to help you locate a good independent Smart specialist near to you who can help you for a lot less money than Smart will try to charge you.

  9. #19
    Join Date
    Jul 2013
    Location
    uk
    Posts
    5
    hi all,

    an update in case it helps anyone in future!

    to summarise my symptoms:
    1. loud noise coming from rear right of car, sounded like items shifting in the boot of the car. stopped after this (being totally unaware of the belt problem on mhds) and was able to start again fine.
    2. repeat twice - two more short journeys, with one stop in the middle, each with a tearing noise (less loud). definitely deciding something very wrong by now, but no impact on driving.
    3. on the final journey, temperature light came on for a brief period and went off again. (no battery light). distance from final noise to home was about 0.8 miles.
    4. at home on drive noticed massive coolant leak, came on here, learnt about THE BELT AND MHDs.

    i can confirm there was no belt left when i checked after this thread...
    i called my very nice independent garage (for reasons past i don't trust my local smart dealership) and they have told me i was super lucky.

    damage done:
    missing belt (obviously!)
    sheared engine oil pressure switch and wiring.

    cost: not what i feared.

    many thanks for the constructive comments - i will be checking that belt regularly in the future.

  10. #20
    Join Date
    Apr 2009
    Location
    Ecosse
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    Cheers for the feedback Lottie, and good news on it not being as bad as it could have been. At the very least you now know what to be aware of for future. And your experience is there for others to absorb. It's what this forum is about - welcome along!

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