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themossman · 07-03-2009, 10:10 AM

On my M3 I had the light come on (service engine soon) and off intermittently and it was always blamed on the gas cap. Finally after being very insistent the dealer performed more extensive testing and found that it was a bad coil pack. (which was a known issue on the M3 and for which a tech bulletin existed)

My engine was never 'at risk' as there's was another warning indicator that would have lit if it was an 'at risk' issue. I would suggest resetting the gas cap, get 20-30 miles driving done...add some more gas/fill up...ensure gas cap is seated properly...and get another 20-30 miles done. Then, if issue still exists take it to the dealer and have them pull codes and diagnose.

Not sure if that's "bad advice", but that's what I would do based on experience.

07-03-2009, 10:10 AM	#11
themossman Apprehensive Optimist Drives: '10 SS/RS SIM Join Date: Sep 2008 Location: JAX Posts: 1,383	On my M3 I had the light come on (service engine soon) and off intermittently and it was always blamed on the gas cap. Finally after being very insistent the dealer performed more extensive testing and found that it was a bad coil pack. (which was a known issue on the M3 and for which a tech bulletin existed) My engine was never 'at risk' as there's was another warning indicator that would have lit if it was an 'at risk' issue. I would suggest resetting the gas cap, get 20-30 miles driving done...add some more gas/fill up...ensure gas cap is seated properly...and get another 20-30 miles done. Then, if issue still exists take it to the dealer and have them pull codes and diagnose. Not sure if that's "bad advice", but that's what I would do based on experience. __________________ Car is for sale --->http://www.camaro5.com/forums/showthread.php?t=158486 Current Summary: Engine:Phase One-(All work by Vengeance Racing): Custom Cam, AR Headers, ported throttle body, ported intake, custom tune, dual valve springs, hardened push rods, under drive pulley, thermostat, Vararam CAI, C5R timing chain, Melling oil pump catch can, breather, MagnaFlow Sport Axle Back Suspension: Pfadt Sport Sway Bars, Pfadt drop springs Other: MGW Shifter, Custom Paint my build journal ---->http://camaro5.com/forums/showthread.php?t=30057