Hi im steve. iv read this tread and i am a mechanic and have been for 7 years and i never heard any thing so silly, there is no way in hell you could get that from you exhaust fumes even if the exhaust was missing the ratio of air compared with the amount of exhaust fumes that the car produces is in significant, its a diesel yea?? must be as it has a particle filter ok. a partical filter/A diesel particulate filter, sometimes called a DPF, is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Wall-flow diesel particulate filters usually remove 85% or more of the soot, and can at times (heavily loaded condition) attain soot removal efficiencies of close to 100%. A diesel-powered vehicle equipped with functioning filter will emit no visible smoke from its exhaust pipe. If you think how much traffic you sit in every day driving around being a taxi driver you would take in more fumes by opening your window in a traffic jam. i can see your point your up set and fustrated that your car is not functioning correctly or as it should do so speak to the head office and ask them to get it sorted and would like a courtsey car in the mean time. Being as its not a stright forward problem bear in mind its not the garages fault its the manufacturer, Obviously its going to be a right pain as you vehicle is your livley hood but surley its better to have them on your side and not fighting against the company as i can tell you now you will get results in a much quicker and helpfuller way if you play ball and don't try any sue them. also a diesel will produce a very low co content as they run much richer than a petrol.

hi im steve im new on here but found this site by accident but looks like its a good help so iv got a question for you: ok i bought a subaru impreza import in early 2008 when the tax was approx 110 quid for 6 months and around 200 for 12 months ok not to bad but now all this with the tax inflation im screwed.. i now have to pay 220 odd for 6 months and some where in excess of 400 for 12 months ok now the confusing bit the vehicle was made in 1998 imported into the country in 2007 but it has a R registration on it eg 1998 i spoke to dvla over the phone and they say"Because the car was imported into the uk in 2007 i have to pay the higher tax bracket" BUT surley i can change the registration to a 2007 reg?? Any help i would be greatful