Cleaned MAF on my ´98 230K, and found a thin cover of oil in tube over the MAF - other than that the MAF looked like new. I also found a bit of burned/old oil on the air filter, and in the tubes between airfilter and top!!

My idle fluctuates between 750 - 800 r/pm - should it not be more stable?

Any thoughts would be appreciated.

Going to change airfilter today.

Greetings form Copenhagen!