Good point Black Mercedes:

So, even if you're Dad rips your head off over the cost of the repair, that's light work for the PRIVELAGE of driving a Mercedes.

Ok, I have never noticed any oil leaking, but is there a way that I can visually see if anything is leaking? I have looked (not too hard though) and don't seem to see anything out of the norm. Will I not necessarily see any oil on the ground if the gasket is bad?

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)