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loss of performance
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  1. E39 (1997 - 2003)
    I have a 2002 530i that runs great, until it feels as if the gas isnt reaching my engine properly, and causing it to lose acceleration drastically until eventually spitting and sputtering to a stop, im thinking caty converter, diagnostic recommended i inspect exhaust system and cat, and spit...
  2. E39 (1997 - 2003)
    Salutations friends I am gladly but aggravatingly driving a 2002 530i that intermittently loses power , as in acceleration , it will sort of kick and become almost irrelevant to give it gas BC I'm not going over 10 mph and it has me thinking its my cat converter , or the rear o2 sensor because a...
  3. E39 (1997 - 2003)
    Hello! I'm having a situation with my 2000 E39. About 2 weeks ago it started having intermittent bouts of misfire. I put it on the computer and it was a misfire on cyl 6. I also noticed that the coolant expansion tank had a crack. I replaced the tank, cyl 6 and the spark plug. My car is still...
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