AT dealer we always suck-out the oil.. The suction machine gets way more oil than draining as the plug INS'T on the bottom and the dipstick tube DOES go all the way to the bottom..

MB recommends suction & has for decades...that is the reason that all of the filters are at the TOP of the engine.

Last car not to have filter at the top was the R107 (SL's)

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator