Mercedes W222 M278 Engine 2014

Complete Mercedes W222 M278 Engine 2014

The Mercedes M278 engine 2014 is a 4.7 liter twin turbocharged V8 petrol engine delivering a factory rated 335 kW (455 HP) and 700 Nm of torque. Installed in the W222 S Class and Mercedes Maybach variants, this engine combines refined luxury performance with strong mid range torque and smooth power delivery.

This complete OEM Mercedes Maybach S500 engine is a direct replacement for M278 equipped W222 S Class and Maybach models, restoring original factory performance and emissions compliance.

Direct Fit (No Modifications Required)

• Mercedes W222 S500 / S550 – M278 (2013–2017)

• Mercedes Maybach S500 / S550 – M278 (2014–2017)

Also Fits (Verification Required)

• Mercedes W221 S500 (late models)

• Mercedes C217 S Class Coupe (S500)

• Mercedes CLS 500 (C218)

• Mercedes E500 / E550 (W212)

What’s Included

• Complete engine assembly

• Engine block & aluminum cylinder heads

• Forged crankshaft, pistons & connecting rods

• Dual overhead camshafts & timing chain system

• Twin turbochargers

• High pressure fuel injection system

• Intake & exhaust manifolds

• Wiring loom & sensors

• Ancillaries supplied as agreed before purchase

• ECU supplied only if agreed before purchase

Mercedes M278 engine for sale

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