Afecta a unidades con motores M272 V6 y M273 V8 fabricadas entre abril de 2004 y septiembre de 2006, y puede provocar la rotura del motor. Ha sido denunciado por Autobild.de 



Cuidadín con la broma...
https://www.thetruthaboutcars.com/2011/08/mercedes-hit-with-timing-chain-issues/
Mercedes-Benz is currently trying to recapture the number one position in global luxury sales, but a quality problem on its home turf in Germany seems to be undermining confidence in the brand. Autobild reports that the M272 V6 and M273 V8 engines used a sintered steel timing chain gear made of various materials starting in 2004, but switched to conventional steel in 2006, eliminating the problem with gear wear. The problem: nobody seems to know how many vehicles built between 2004 and 2006 are affected. Mercedes claims, based on secret internal defect tracking, that one percent, or about 1,500 vehicles, are affected. If you have a vehicle with one of these engines built between 04 and 06 and your check engine light comes on, Mercedes encourages you to visit your M-B dealer rather than an independent shop, as Mercedes is offering free repairs to affected customers. And as Autobild’s Matthias Mötsch argues, when your motto is “the best or nothing,” the only answer to a situation like this is to fix 100% of the defects for free.




Cuidadín con la broma...
https://www.thetruthaboutcars.com/2011/08/mercedes-hit-with-timing-chain-issues/
Mercedes-Benz is currently trying to recapture the number one position in global luxury sales, but a quality problem on its home turf in Germany seems to be undermining confidence in the brand. Autobild reports that the M272 V6 and M273 V8 engines used a sintered steel timing chain gear made of various materials starting in 2004, but switched to conventional steel in 2006, eliminating the problem with gear wear. The problem: nobody seems to know how many vehicles built between 2004 and 2006 are affected. Mercedes claims, based on secret internal defect tracking, that one percent, or about 1,500 vehicles, are affected. If you have a vehicle with one of these engines built between 04 and 06 and your check engine light comes on, Mercedes encourages you to visit your M-B dealer rather than an independent shop, as Mercedes is offering free repairs to affected customers. And as Autobild’s Matthias Mötsch argues, when your motto is “the best or nothing,” the only answer to a situation like this is to fix 100% of the defects for free.
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