hi all could do with some advise the i have the x5 e53 30d it has been a night mare the last 12 months i keep getting bad black smoke so far i have had the turbo done oil seperator done egr checked air flow checked fuel pressure monitor changed now i have been told 2/4/6 injectors are either under or over 6 dont know what this means i have also been asked if the injectors are selonoid or electronic sorry for the question might seem stupid to some but i have know idea what to do with it the car has done 118000 miles and is an 03 plate
any info would be very much appeciated
any info would be very much appeciated
