2016 MERCEDES-BENZ C-Class M274 DE 20 AL/M274 DE 25 AL (W205)
W205 / Sedan / Coupe / Estate (varies by market) / Global / varies by region with differing engine options
M274 DE 20 ALM274 DE 25 ALOM651 DE 22 LAM264 E15 DEH LAExakter Jahres-/Varianten-DatensatzSilver
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Timing chain stretch on some M274 engines
- Water pump failures in certain markets
- Electrical issues in early W205 models
First checks
- Verify engine code and configuration per market
- Check timing chain and oil leak tendencies
- Inspect cooling system and water pump condition
Vor dem Teiletausch
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- Engine and equipment vary widely by global market; this profile covers the main documented powertrains for 2016 W205 C-Class.
- Oil capacity includes filter change. Always confirm market-specific engine codes for accuracy.
- Transmission options dependent on region and engine; check market-specific details.