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Mot

swiftflo
in BMW 3 Series Forum

Featured Replies

320i 2010 Cabriolet.

Shock and horror, I took my car in for it's MOT Wednesday morning and it failed on emissions. It was suggest that it had an additive put in the fuel tank and then give the car a good run. So I put a container of Wynns pre MOT additive in and then gave the car a 20 mile run on the motorway, hopefully;y when it is retested tomorrow morning it will now pass okay.

Everything now crossed.

  • Quote

    Good luck. I have used Cataclean in the past and it has done the trick. I dont believe it cleans the cat but certainly brings emmissions down.

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    • Author

    Thanks for your reply. Took the car back for a retest on the emissions yesterday and it passed okay, but according to the technician only just.

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    Wouldn't this mean that its running rich? which means theres something you might need to get checked?

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    If it is running rich I am suprised one of the sensors hasn't picked it up and put the Engine Management light on.

    It may be worth putting a scanner on it to see if any codes come up.

    Alternatively stick some Cataclean in it and take it for an Italian Tune Up.

  • Quote
    • Like 1
    • Author

    Thanks for all your replies, I will certainly get some Cataclean and put it in the tank.

  • Quote

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