I bought a 2001 SLK-320 in Jan of 2005 that was just like new & had only 9,600 miles on it. 21 months later, I've only put 1,400 miles on it (I'm at about 11K now). Service B was done on it by the dealer when I bought it & it has synthetic oil in it. Do I need to service it yet (service level A / oil & filter chg, etc.)? I'm getting differences of opinions & wondering if the dealer just wants the $$ but it really doesn't need servicing yet.