MOT and CATs.

Discussion in 'AMG Lounge' started by John, Jun 5, 2014.

  1. John

    John MB Club Veteran

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    Does anyone know for definite if an E55K will pass it's MOT if it is only fitted with secondary CATs?
     
  2. AMGeed

    AMGeed MB Club Veteran

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    The mechanic who MOT'd my E55 last month told me any sign of missing cats is an automatic fail at his chain of garages (Elite)
    I was under the impression that if the car passes the emissions tests it is a pass:dk:
     
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  3. markmifsud

    markmifsud Hardcore MB Enthusiast

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    if the cats are "empty" but present, they do not have any means to inspect further
     
  4. W4E300

    W4E300 Hardcore MB Enthusiast

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    Had my secondary CAT removed [CLK 500] and passed MOT without a flicker. The main CAT does more than enough 'good stuff' to get through the emissions test....

    Sent from my iPad using MBClub UK
     
  5. AMGeed

    AMGeed MB Club Veteran

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    Problem is, the OP appears to be asking if its an MOT pass if the main cats are removed and relying only on the secondary cats.
     
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  6. W4E300

    W4E300 Hardcore MB Enthusiast

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    ....Sorry - are you with the 'Comment Police'? Just adding an observation - isn't that allowed?

    Sent from my iPad using MBClub UK
     
  7. AMGeed

    AMGeed MB Club Veteran

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    Of course you can add your observation. I was just pointing out the OP wasn't asking about secondary cats.

    Jeez some people are so touchy:doh:
     
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  8. OP
    OP
    John

    John MB Club Veteran

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    Lol. I love forums.

    No, the regulations changed at the beginning of *2012 I think and now if a car was fitted with CATs when it left the factory, it should still have them (regardless of emissions).

    Previously, I only had primaries (secondaries removed) and it passed without issue - even after the new regulations.

    However, I am looking to just have secondaries without primaries.

    So yes, if just secondaries fitted, is this an MOT failure?
     
    Last edited: Jun 5, 2014
  9. whitenemesis

    whitenemesis MB Club Veteran

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    Technically, yes a fail. The MoT regs require all factory fitted CATs to be present.

    As posted above, if the CAT has been gutted but still physically present and the car passes emissions test its very unlikely to be failed.

    In practice, as long as the car passes the emissions test most testers won't check. IMHO
     
  10. flango

    flango MB Club Veteran

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    If the primary CATS are missing its an automatic fail. If the cans are still in place but empty and passes the emissions test then thats fine.

    VOSA are clamping down on this big time, 2 testers had their license suspended around here for passing vehicles that had had decat's. VOSA perch outside the test centers that are associated with performance cars and the either raid whilst on test or wait until just after the test, as they have live info on their laptops from the VOSA terminal in the garage so know if the tester has passed or failed the car.

    Best advice for anyone with a decatted performance car take it to a back street garage that does MOT's :thumb:
     
  11. Scott_F

    Scott_F Hardcore MB Enthusiast

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    Couldn't all this stress and worry about CATs, secondary CATs and de-CATs be avoided if people just left the damned things alone ?
     
  12. IanA2

    IanA2 Hardcore MB Enthusiast

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    Couldn't all the stress and worry about global warfare and famines be avoided if people were just nicer, more tolerant, and fairer with each other. :thumb:

    Just saying.
     
  13. Sp!ke

    Sp!ke Administrator Staff Member

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    This is a bit of a worry - I wonder how long before VOSA will start taking the same stance with DPF's?
     
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  14. Scott_F

    Scott_F Hardcore MB Enthusiast

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    Most definitely.

    However, one is probably impossible to achieve whilst the other merely requires you to leave well alone.
     
  15. IanA2

    IanA2 Hardcore MB Enthusiast

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    Call me an old cynic, but I think there's as much chance of securing world peace as there is of stopping folks playing about with their cars.
     
  16. flango

    flango MB Club Veteran

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    They already are, I know of a least one garage who have had their MOT license revoked for passing cars with DPF deletes.

    Again best advice gut the DPF but leave the can in place. Remember an MOT tester is not allowed to go digging for faults so are not allowed to inspect cat or dpf internals. A classic example of this is where the exhaust of a car runs inside the flat cover that covers the full bottom of the car (some BMW's) the tester cant remove or look inside the cover so has to give benefit of doubt that cats and dpf are in place
     
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