Failed MOT

[Stacey1]

My Mini cooper failed it's MOT because of these three things -:

• Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))
• Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))
• Exhaust emits excessive dense blue smoke during acceleration (8.2.1.2 (g))

I wondered if anyone could help me understand what these mean and roughly how much it would usually cost to fix?
Thanks

 

[ToeKnee]

Try a mini forum?

 

[pioneercollector]

You are probably better off looking on a MINI forum, these things could be explained in a generic way, however this is more than likely car specific for proper advice....?

 

[pcthrillrider]

hc is unburnt fuel co means the car running rich blue smoke on exceleration could be the rings or valve stem oil seals

 

[DSM10000]

Out of curiosity what why did you register with a Mercedes forum?