MOT fail! Is this bad?

[Stokelad1989]

Fail today on co is this bad or just add addictive to my petrol and give it a good run? 

[jmurray01]

The fact it drastically improved on the second test indicates it is an issue that gets better as time goes on.  If they tried it a third and fourth time it'd probably pass, but obviously that's not how the test works!! 

I would try giving the car a good "blast" first by doing 20-30 miles above 4,000RPM (providing your oil and timing belt are both OK) to clear out the exhaust system and then get the garage to try again.

Was it just the emissions that it failed on?

[Stokelad1989]

Thanks will try that. Emissions and Just a faded indicator bulb so could of bin worse I suppose 

[jmurray01]

2 hours ago, Stokelad1989 said:

Thanks will try that. Emissions and Just a faded indicator bulb so could of bin worse I suppose 

Yeah, definitely worth giving it a good drive (like you stole it!) first and see if that sorts it.  If you do lots of short journeys or the car sits for long periods of time then that can happen, or even if you just don't exceed 3,000RPM often.