Includes 2005-2008 (early) model M272 & M273 engines,
Get the oil changed more often if you own one of those engines!

The manufacturer of the balance shaft did not properly harden "SOME" of that production run. Possibly 1/4 MILLION engines affected worldwide

Took 3 years to figure that out?
Also took 3-4 years to figure out the wiring mess back in the 90's as well.

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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