Problemų mersas su grandinėm tikrai yra turėjęs. Gal ten su įtempėju kas ar su kampais grandinės, bet apie tokius dalykus yra žinoma. Pvz. W126 380 motoras.
"380 SE/SEL
Following the fuel crisis, part of the program was to reduce weight and increase power with decreased engine weight. On early versions of the 380, the engines came with a single row timing chain. These models were plagued with chain failure problems and some of the problems were corrected by Mercedes-Benz, free of charge. Some models, however, escaped retrofit and may at some point fail as a result. All models built in 1985 were equipped with the dual-row chain from the factory.
The reason for the susceptibility of a single row chain on this engine is because of the intricate rails and tensioner design, along with the two tall cam towers the chain must circulate around. Simple single cam engines generally do not have these problems when using a single belt."
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