Thanks Ali. What kind of oil do these cars require. I know they use synthetic but is is MB own blend or is it Mobil1 , Syntec, etc? How many quarts does the 2.8 and 3.2 V-6 engines take?

I was searching through the forum and I see MB sells a dipstick for the transmission and engine. Is these inexpensive items? I s it worth purchasing for a DIY mechanic?