dakes55 Posted April 7, 2018 Share Posted April 7, 2018 Hi, I have just bought an Audi A8 2002 2.8 Quattro and it has failed its mot on Emissions, its been stood for 2 years and has only done 100 miles since its last mot in 2017, prior to that it passed straight through the last 6 mot's without any problems, this is what it says on the fail certificate, any ideas where to start looking first. Exhaust emissions Lambda reading after 2nd fast idle outside specified limits (7.3.D.3) Quote Link to comment Share on other sites More sharing options...
Magnet Posted April 12, 2018 Share Posted April 12, 2018 Hello John, Was the car taken for the MOT with the remnants of 2 year old fuel in the tank, or did you pump out/drain the old fuel and add new? Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
niedzial1983 Posted April 12, 2018 Share Posted April 12, 2018 As above . Tank drain and clean, fuel filter change , also a long motorway drive with some fuel additive to burn out what is there ... carbon clean if needed Quote Link to comment Share on other sites More sharing options...
dakes55 Posted April 12, 2018 Author Share Posted April 12, 2018 Well the car passed its mot ok, the problem was that the guy who tested it didn't get the engine hot and up to temperature, im picking it up this weekend from Reading and driving back to Leicester this week end on the motorway, so im hoping a 125 mile run will do it good, thanks for all your advice guys Quote Link to comment Share on other sites More sharing options...
Magnet Posted April 13, 2018 Share Posted April 13, 2018 Um?? Are MOT testers that daft as to not to ensure that the car was up to temperature before failing it on emissions? Maybe some are! I suppose if they are daft enough to do that, they may just make a mistake on retest and plug the probe into the wrong car! Might be worth confirming the MOT comes with an emissions print out - these sometime go missing. Enjoy the car. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted April 13, 2018 Share Posted April 13, 2018 13 hours ago, dakes55 said: Well the car passed its mot ok, the problem was that the guy who tested it didn't get the engine hot and up to temperature, im picking it up this weekend from Reading and driving back to Leicester this week end on the motorway, so im hoping a 125 mile run will do it good, thanks for all your advice guys Glad it's passed the Mot :) Forgot you were from Leicester John! We'll have to have an Audi meet at some point :) Cheers Steve Quote Link to comment Share on other sites More sharing options...
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