Originally Posted by ThE GrEAt OnE
? my 06 e350 4matic has a dipstick in the engine bay and there is no way for me to check it via the IC
Correct, when M272 (350) replaced M112 (320) in the W211, dipsticks returned.
I feel the same way, as the OM642 (GL) has dipstick, which the OM648 (E-class) doesn't, and I'd prefer the dashboard readout.
This is a REALLY TINY issue, with the dashboard readout the better solution.