2020 MERCEDES-BENZ AMG GT M178 DE 40 AL (C190)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Carbon build-up in direct-injection engines over time
• Suspension wear on track-driven vehicles

First checks

• Verify oil change history with correct oil grade
• Inspect turbocharger operation and wastegate control
• Check suspension bushings for wear

Antes de cambiar piezas

• 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

• Market variations include slightly different power outputs due to emission regulations.
• The M178 engine features a cross-bank exhaust manifold configuration unique to AMG models.