Head gasket problem? Uh, oh.
This morning I started up my 528 cold and the idle was very rough like it was missing. I turned off the ignition, waited a few minutes and started it again which didn't solve anything.
When I backed out into the street and started moving forward, I looked in the rearview mirror and saw a small puff of smoke. I couldn't tell what color it was.
When the engine temp warmed up, everything was right in the world.
Is this indicative of a head gasket problem or could it be something more benign like spark plug wires or the spark plugs themselves?
After a search on the forums I narrowed it down to these few things. Any new ideas out there?
No codes in the computer - yet.
1998 528i - sold 222,000 miles
1998 540i - sold 159,000 miles
2007 328i Coupe - 30,000 current