Mercedes-Benz knew about the defects in the balance shaft gears in M272 engines and concealed the information and that Mercedes Benz made misrepresentations about the reliability of its vehicles equipped with their M272 engine.

Mercedes Benz vehicles manufactured between 2004 & 2007 & equipped with Mercedes' M272.  The subject engines were manufactured with defective gears in their balance shafts. These defective gears wear out prematurely, excessively, and can cause damage to other expensive engine components without warning.

M272 engines that were sold between 2004 and 2008 with engine serial numbers below 2729..30 468993 often show early wear of the balance shaft gears, requiring extensive repairs at a retail cost of over $4000. The M272 engines are equipped with defective balance shafts gears which wear out prematurely, excessively and without warning, purportedly causing the vehicles to malfunction, the check engine light to illuminate and the vehicle to misfire and/or stop driving. 

Vehicles with known fault balance shafts with soft metal.

C 230, SLK 350, CLS 350, E 230. Model Years 2004, 2005, 2006, 2007, 2008, 2009, 2010.

CLS 280, CLK 280, C 280, E 280, SL 280, C 350, E 350, S 350, SL 350, Viano. Model Years 2005, 2006, 2007, 2008, 2009, 2010.

R 280,R 350,ML 250, Sprinter. Model Years 2006, 2007, 2008, 2009, 2010.
S 280. Model Years 2007, 2008, 2009, 2010.

CLC 230, CLC 350. Model Years 2008, 2009, 2010.