Quote:
Originally Posted by Weather Man
So, since I am thinking of picking up a M-3 V-8 powered auto-trans Coupe, I read through the thread and found the following biggies to look for. Any obvious ones I missed?
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Missed:
Recalls - fan blower wiring, possibly battery disconnect module, and airbag, get done if not done
Valve cover gaskets
Engine grounds
Comments:
AC compressor - No, what?
Motor mounts - Yes
Rod bearings - Yes
Buy 2009 or newer - No (unless you want idrive, then yes, but you shouldn't, because screens are for doors). There is zero functional difference mechanically. 2008's are older and were made in larger numbers than most of the other model years, so you'll see more issues popping up with them. I'll go one further and say unless you are keeping it completely stock and really want ZCP (which is 2011+), 2008's are a much better value on the used market than anything newer again because age and scarcity both weigh in favor of a lower price on the 2008's
DCT weeping - Yes (but get a manual)
Auto trans service Pressure filter, suction filter, and a suction jet pump - Yes but get a manual)
Gas cap rubber fails to seal - Yes, I suppose, replace it when you need to get to free shipping at the parts shop
Replace spark plugs often - Yes, halve the factory time (I do mine about every 15,000 miles). Also consider doing coils proactively
The E9X M3's two throttle actuators will eventually fail. Replace proactively? - No. You'll have warning. They start throwing codes that don't immobilize the car. Order some then