5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
wow nobody to help you? i have the same car, but i think its as you said...change that plug in # 6 (actually, change them all) and reset the CEL and you should be fine...let me know if it does help...we have 4-O2 sensors and they are pricey!!! would love to know if you fix that issue
If your going to change one plug you may aswell do the set, as if ones already gone the rest will follow suit, change the plugs first and see what happens, if the o2 code comes up again then change the sensor. If you do alot of short journeys this will clogg up the o2 sensor, so after youve changed the plug/plugs take it for a good run,then do another code read.
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Problem fixed.... i changed the plugs 6 months ago so i pulled the plug in cyl 6 and it had some oil on it.. so i looked and looked it seemed to be the gasket around the plug and i the valve cover.. so i changed the valve cover and the spark plug gaskets... So fur so good drove over 100 miles and no problem... all is well...
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