I took my mums old k reg vitara for an mot a few years back, emissions failed miserably yet everything was spot mechanically bar a very slight blow in the exhaust, the tester advised changing the exhaust as this could be the cause, 4 hours later i went back and it failed again, I was stood chatting to the tester while he was disconnecting the emissions detector and noticed he had clicked on the "1992> suzuki vitara 1.6i cat" when right above it was, "1989>1992 suzuki vitara 1.6i NON cat"

I asked him why he had clicked on the CAT option as ours did not have a cat as it was manafactured in march 1992 which was before it was compulsory to have one, he said anything from april 91 had to haver a cat byn law and i argued and said that im sure it was like april 92 and that ours is as it left the factory and i a, sure a manafacturer would know a fair bit more about was legislation than he did it turned into an argument and i threatened to call vosa (and to tell the taxi company i worked for who took all thhere cars to him for repairs not to use him) he then reluctantly retested using the correct option and guess what , it passed with flying colours.


to the op what year is your car and check they are actually using the right option on htere screen for vehicle type and also if it is one that is modern and uses reg no to bring up make and model check it is right make and model on his screen ( i had this on my old st170 he put reg no in and tested then it failed but he spotted that for some reason even though reg was correct the database said my car was a 1.25 fiesta )