Thread: Z4 Roadster (E85) 03 Z4, couple of problems.
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Old 11-22-2012, 06:47 AM
Mikey48 Mikey48 is offline
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Location: Charleston,S.C.
Join Date: Mar 2011
Posts: 536
Mein Auto: BMW Z4 3.0
One bottle in an empty tank should do it. But, If the car is gummed up pretty bad I would add the cleaner to the next few fill ups.I add fuel system cleaner to my tank at every fill up. Add it to tank and then fill up with a top grade gas. If it is not the coil misfiring than I would look at installing a fresh set of plugs. I got my plugs from my BMW Dealership and installed them myself . It is an esy job. Good luck and Happy Holidays !
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