This extended warranty applies to the following condition that may necessitate the repair or replacement...
Mercedes-Benz technical service bulletin ELW-M278Catalyst for 2012-2017 Mercedes-Benz E550, 2012-2017 Mercedes-Benz S550 and 2011-2018 Mercedes-Benz CLS550 and others.
- Bulletin number
- ELW-M278Catalyst
- Component
- Engine and engine cooling: exhaust system: emission control: catalytic convertor
- Summary
- This extended warranty applies to the following condition that may necessitate the repair or replacement of the catalytic converter system and is related to: • A check engine Malfunction Indicator Lamp (‘MIL’) may illuminate due to sulfur contamination in the catalyst.
Owners of these vehicles have filed 26 complaints in the engine category.
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