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Discussion Starter #1
Hoping someone may help - I have a 2006 X5/4.4i with 60K - receiving faults on all 8 at startup - replaced plugs, moved coils to test, replaced air filter, replaced air mass, added ground straps to coils - air mass helped - car falts at start up, faults stay on till cleared.

Usually warms up and runs well with fauklts but occasionlly runs rough for days eventually clearing - tried testing with full tank, under half tank - cold warm - no difference - tested fuel pump pressure. Replaced CVV's

Any help would be appreciated - next step will be fuel filter - about $250 then fue pump about $400 - 500 and no guarantees
 

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Discussion Starter #3
Air Mass

Air mass was replaced about a month ago - to my knoowledge it was OEM - except for air mass all previous work was at dealership, sensor replaced by high end BMW garage - I have spoken with several knowledgeable people all seem stumped, possible fuel filter but not convinced that it is the cause - tested warm worked fine, crimped and worked fine
 
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