Make a donation

Author Topic: MOT fail - Carbon Monoxide emissions  (Read 3219 times)

Offline cmdrfire

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 0
  • -Receive: 14
  • Posts: 1359
    • Commander Fire - my blog
    • Email
MOT fail - Carbon Monoxide emissions
« on: January 09, 2014, 04:10:27 pm »
'Lo all,

My GTI just failed its MOT based on excessive carbon monoxide emissions. I'm a bit puzzled by this, as it's always passed with no problem, and I've been running the APR exhaust setup for several years now (3+ I think). No engine warning lights, and the car has been driven very lightly over the past year. No other changes to speak of. Any suggestions from anyone?
Cheers,

N.

Offline Hedge

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 484
  • -Receive: 304
  • Posts: 6621
Re: MOT fail - Carbon Monoxide emissions
« Reply #1 on: January 09, 2014, 04:18:45 pm »
Sounds broken.  :happy2:  :wink:

Offline rich83

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 165
  • -Receive: 802
  • Posts: 13444
    • MK5 Golf GTI
  • My Ride: https://www.mk5golfgti.co.uk/forum/index.php?PHPSESSID=pmqi23kt2k4rqqe67fvg8htbeu&/topic,19740.0.html
Re: MOT fail - Carbon Monoxide emissions
« Reply #2 on: January 09, 2014, 04:20:59 pm »
Could be a result of not a lot of usage?

Ill happily swap my oem system for your RSC to get you through the MOT

Offline cmdrfire

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 0
  • -Receive: 14
  • Posts: 1359
    • Commander Fire - my blog
    • Email
Re: MOT fail - Carbon Monoxide emissions
« Reply #3 on: January 09, 2014, 04:24:39 pm »
Sounds broken.  :happy2:  :wink:

Thanks for the useful advice  :rolleye:

Could be a result of not a lot of usage?

Ill happily swap my oem system for your RSC to get you through the MOT

I'm wondering if the engine was cold when they ran through the test. And thanks as well for the note  :laugh: the VW lady was already telling me off about it failing because it was a "non-standard exhaust and only a genuine VW exhaust will pass and blah blah blah"...

Offline rich83

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 165
  • -Receive: 802
  • Posts: 13444
    • MK5 Golf GTI
  • My Ride: https://www.mk5golfgti.co.uk/forum/index.php?PHPSESSID=pmqi23kt2k4rqqe67fvg8htbeu&/topic,19740.0.html
Re: MOT fail - Carbon Monoxide emissions
« Reply #4 on: January 09, 2014, 04:26:59 pm »
Could have been cold yeah. Best bet it to take to to somewhere that will do it on the spot (booked in for a time slot) so you can perform an italian tune up  :happy2:

Offline cmdrfire

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 0
  • -Receive: 14
  • Posts: 1359
    • Commander Fire - my blog
    • Email
Re: MOT fail - Carbon Monoxide emissions
« Reply #5 on: January 09, 2014, 04:36:18 pm »
Well, they've told me it was at operating temperature for the test, but it hasn't been driven in about three or four weeks and it was a gentle-ish drive into work... wondering if I should head over there and do the "Italian" tune up and rev it up for a few minutes.

Offline MAT ED30

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 25
  • -Receive: 82
  • Posts: 5728
  • Vwr fan boy
    • Email
Re: MOT fail - Carbon Monoxide emissions
« Reply #6 on: January 09, 2014, 04:40:33 pm »
If it's got a full tbe then it needs a good  :driver: to get the cat up to full temps not just a gentle drive it does the cat no good at all for an mot

Mods yes but way too many to stick in this little box

Offline Viking

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 17
  • -Receive: 47
  • Posts: 747
Re: MOT fail - Carbon Monoxide emissions
« Reply #7 on: January 09, 2014, 04:40:52 pm »
I smell the dealer looking to sell you a new exhaust...
Sarcasm for free. Anything after that can only be considered as a bonus.

Just because you think you know something, doesn't make you an expert if you've just read it on the internet, y'know.

Offline xjay1337

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 15
  • -Receive: 377
  • Posts: 4916
  • My Ride: http://www.mk5golfgti.co.uk/forum/index.php/topic,88399.0.html
Re: MOT fail - Carbon Monoxide emissions
« Reply #8 on: January 09, 2014, 04:58:51 pm »
Put some fuel cleaner in, new air intake, do it when the car is hot after a good hard drive , have it done there and then, not left for hours and then sorted.

Some dealers can be nobs. Failed my mates car for US DRLs because they "didnt know what they were " lol

Offline Andy

  • Admin
  • Just look at my post count
  • *
  • Thank You
  • -Given: 39
  • -Receive: 443
  • Posts: 10929
    • Email
Re: MOT fail - Carbon Monoxide emissions
« Reply #9 on: January 09, 2014, 05:02:21 pm »
take it for a good drive out to get the engine to running temp and hopefully go through

Offline cmdrfire

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 0
  • -Receive: 14
  • Posts: 1359
    • Commander Fire - my blog
    • Email
Re: MOT fail - Carbon Monoxide emissions
« Reply #10 on: January 09, 2014, 05:58:04 pm »
Hot-footed it over there, took her for a "spirited" five mile drive (well within the law ossifer), came back, ran the test immediately, and passed. Like Mat Ed30 says exhaust was not up to temp even if coolant reached appropriate temp on the idiot gauge.

...when I walked in the dealership the young lady (who doesn't know me enough it seems) asked if I wanted her to "get the parts on order"  :rolleye:

Put some fuel cleaner in, new air intake, do it when the car is hot after a good hard drive , have it done there and then, not left for hours and then sorted.

Some dealers can be nobs. Failed my mates car for US DRLs because they "didnt know what they were " lol

Nah, they're a good dealers, I was late for my initial test slot and left it there to be tested so not their fault it cooled I guess, the chap who's run the MOT has run it for years past for me and he knew that I'd be over there to sort it out  :happy2: I think it was just a case of the young lady in question not knowing me too well (she's new), once I turned up and she asked about ordering parts one of the old-timers laughed and said nope, he won't be needing anything...

Anyhoo problem sorted and MOT granted  :happy2: thanks for your "advice" everyone :wink: (looking at you Hedge!)

Offline Hedge

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 484
  • -Receive: 304
  • Posts: 6621
Re: MOT fail - Carbon Monoxide emissions
« Reply #11 on: January 09, 2014, 07:29:45 pm »
Sounds broken.  :happy2:  :wink:

Thanks for the useful advice  :rolleye:

Anyhoo problem sorted and MOT granted  :happy2: thanks for your "advice" everyone :wink: (looking at you Hedge!)

Here to help.  :signLOL:

Offline Tortaruga

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 36
  • -Receive: 105
  • Posts: 1527
Re: MOT fail - Carbon Monoxide emissions
« Reply #12 on: January 09, 2014, 10:49:03 pm »
the young lady (who doesn't know me enough it seems) asked if I wanted her to "get the parts on order"

How attractive is she? Tell her you'll happily order the parts if she'll arrange a "back door delivery"... :evilgrin:
'07 Red manual