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New mot rules

Discussion in 'Car Repairs / Maintenance' started by trevorbayliss, 9 Jun 2018.

  1. trevorbayliss

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    can anyone advise on how I will be affected by the new mot rules.

    I have a 13 yo Peugeot partner van 2l diesel and it passes every yr pretty much ok. Brake sensor has been an issue in the past.

    All I do is change the oil and filter 2x per yr myself.

    I am worried the new exhaust rules may mean it fails because it does give off black smoke as most diesels do. Is this now a major fail?

    Also I am worried that I won’t be able to drive the vehicle away if it has a major fail. I always use a test centre only and I think this is the reason I have had so little issues with it in the past.

    My mot is not due till feb 2019 but chatting to someone about it this week.
     
  2. pete50

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    I'm afarid that without us doing the test that is a question we cannot answer. The emmision tests have become much stricter so if your car is blowing smoke then it could well fail. very few newer diesels give off any, noticeable smoke these days because of the electronics and multiple sensors that are in engines. All you can do is put it in and see what happens. You could try a pre-mot, that will cost you but I don't think they can take it off the road if it fails that. Doing that would at least give you chance to sort any problems out. Bottom line is it will be illegal to drive the vehicle on the road if it fails the new MOT. Yeah yeah I know it's the Sun but it is a "tradesman's" paper.

    https://www.thesun.co.uk/motors/350...rit-points-even-if-most-recent-test-is-valid/

    https://www.gov.uk/getting-an-mot/after-the-test
     
  3. HERTSDRAINAGE2010

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    Just make sure you change the oil before the MOT and take it for a good run before hand.

    Andy
     
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  4. Motman

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    Under the new rules, if a diesel gives off any visible smoke of any colour it’s a 'major fail' - but only on cars fitted with a DPF which yours probably hasn’t got. On non-DPF cars or vans, the smoke has to be bad enough to obscure the vision of others to fail. In that case it will get a 'dangerous' fail and shouldn’t be driven away from the test station.

    Those are just the visual checks on diesel smoke tests - to pass, they still have to come within the smoke meter limits as well.
     
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  5. ReganAndCarter

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    Yes, good advice. The old adage for diesels just before an MOT is to 'drive it like you stole it'. My Scudo does mostly town driving which doesn't help, so just before my last MOT I took it for a quick scream down the M5. I'm usually very light on the throttle and brakes, but this is the one time of the year I rev the nuts off of it. Bottle of Redex diesel cleaner in tank few days before MOT can't do any harm. Try to make sure it's all burnt off before the test though.

    Think the tester were frying bacon on my cat after I pulled in for the test. Works every time. (y)
     
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  6. trevorbayliss

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    Ok, thanks for the info. My van is not that bad with smoke, but it just sounds like these new rules are designed to get older vehicles off the roads it seems.
     
  7. Keithmac

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    If the are belching black smoke out they shouldn't be on the road imho (yes I own a diesel too..).

    Tester commented ours was one if the cleanest he's had on his exhaust tester last year so don't foresee any issues this year!.
     
  8. mrcrow

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    i have a 2008 skoda 1.4 Tdi fabia 80K...its my first diesel and i was assured it doesnt have a dpf.... but.... i still was concerned about "dirty diesel" effects, before my last mot in May
    i bought some of this..recommended by a lot of the skoda chaps on their forum

    https://www.powerenhancer.co.uk/archoil-ar6400-d-pro-diesel-cleaner-pea-concentrate-639.html

    which did 2 tank fills at 40 litres each and followed up using this at each 40 litre fill up

    https://www.powerenhancer.co.uk/archoil-ar6900-d-max-advanced-fuel-synthesis.html

    the mot showed just the word pass which was good enough for me

    mainly the engine seems sweeter and the mpg has improved..and the turbo performance
    maybe just in my head?...

    even though i dont have a dpf i chose this method...and feel it was worth it
    cheers
    geof
     
  9. Motman

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    Most cars with DPF's don’t even show a reading when I’m testing them. Zilch. Just have a look inside the tailpipe of a DPF equipped car - it’ll be as clean as the day it left the factory with not even the slightest trace of soot. Then look in the tailpipe of a non DPF car! :eek:
     
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  10. Keithmac

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    Our Mk2 Diesel Kuga went through MOT on Monday with no advisories.

    He had to check the probe was in the exhaust as the readings were that low!.

    Same comment as last year, it's bloody clean!.
     
  11. mrcrow

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    :confused::cautious:
    you said it!!...i have been cleaning out the last section of my tail pipe to see if soot forms again
    there was a bit of soot there...:whistle: ermmm
    need to get those short runs eliminated...i like to get the engine temp up on any journey and as we do quite a lot of daily runs out for a day etc...i am hoping that will keep the soot down...or at least burn it off
    the petrol exhaust pipes at the ends used to go grey after a good run..
    cheers
    geof
     
  12. Avocet

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    There is NO change to the MOT emissions requirements for a pre-DPF diesel (which the OP's will be) as far as I'm aware? It'll just do its usual smoke meter test.
     
  13. mrcrow

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    @Avocet
    my last years MOT had readings on the result page...it passed ok...this years sheet didnt have any figures just PASS..which is fine.
    if it failed...would fitting a dpf be a solution??
    cheers
    geof
     
  14. Burnerman

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    If you are worried, get the car steaming hot, and add a can of Forte diesel treatment......and watch the emissions come down. On occasion I've filled the fuel filter with the stuff.
    In the old days, the petrol cars exhaust tail pipe was often coated grey / orange.....'sign of a good runnin' engine, that' - rather it was a coating of lead tetraethyl :eek:
    John :)
     
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  15. mrcrow

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    @Burnerman

    :D yes i remember petrol exhaust grey... used to be after a good run...and yes i thought it was 'good'
    didnt know it was anything bad!!
    i will bear in mind what you say about the Forte diesel treatment..
    cheers
    geof
     

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