Mercedes W222 / CLS 53 Complete Engine

Mercedes M256.930 engine secures an outstanding find for the Mercedes-Benz W222 / CLS 53 — this advanced and highly sophisticated inline-six unit delivers a powerful 270kW output. A cutting-edge, performance-focused powertrain solution engineered to the exacting standards of Mercedes-Benz and the AMG performance division, this Mercedes M256.930 engine represents a remarkable opportunity for workshops, specialist dealers, and owners seeking a genuine, high-performance replacement unit.

The Mercedes M256.930 engine is Mercedes-Benz’s acclaimed 3.0-litre inline-six turbocharged petrol engine with integrated starter-generator (ISG) mild hybrid technology, representing the very pinnacle of modern internal combustion engineering from Stuttgart. Delivering 270kW of refined yet exhilarating performance, this engine combines the effortless power delivery of a six-cylinder unit with the efficiency benefits of 48-volt mild hybrid architecture — a true engineering masterpiece that defines the S-Class 450 and CLS 53 AMG driving experience. Every internal component including pistons, bearings, camshafts, turbocharger, and the integrated starter-generator system is present and complete, making this a comprehensive and ready-to-install powertrain solution. Whether you are replacing a worn or damaged engine, completing a full powertrain overhaul, or restoring your W222 450 or CLS 53 to full factory specification, this M256.930 unit represents exceptional value and quality.

Complete Package Includes:

• Complete 3.0-litre inline-six turbocharged petrol engine block and cylinder head
• Integrated Starter-Generator (ISG) mild hybrid unit
• Turbocharger, intake manifold, and fuel injection system
• 48-volt electrical architecture components and sensors
• Pistons, bearings, camshafts, and accessory brackets

Why the Mercedes M256.930 Complete Engine Beats a Rebuilt or Aftermarket Alternative:

• Genuine OEM inline-six engineering with factory-integrated mild hybrid system
• Rebuilt units rarely replicate the precise calibration of the 48-volt ISG architecture
• Delivers verified full 270kW output, unlike a worn engine with reduced compression
• Retains full compatibility with factory ECU mapping and mild hybrid energy recovery
• Avoids the complexity and risk of sourcing individual mild hybrid components separately
• Significant cost savings compared to a brand-new crate engine from the dealer

Characteristics & Specification:

• Engine Code: M256.930 / 256930
• Configuration: 3.0-litre Inline-Six Turbocharged Petrol with ISG Mild Hybrid
• Power Output: 270kW
• Engine Family: Mercedes-Benz M256 Series
• Fuel Type: Petrol/Gasoline, Direct Injection
• Condition: Used, OEM, Tested and Verified
• Fitment: Direct OEM Replacement

Vehicle Fitment – Compatible Models:

• Mercedes-Benz S-Class W222 S450
• Mercedes-Benz S-Class W222 S450 4MATIC
• Mercedes-AMG CLS 53 (C257)
• Mercedes-AMG CLS 53 4MATIC+ (C257)
• Mercedes-Benz E450 (shared M256 engine platform, confirm exact engine code match)
• Mercedes-AMG E53 (shared M256 engine platform, confirm exact engine code match)
• Verify compatibility using your vehicle’s VIN or engine code before ordering

Installation Notes:

• Professional installation by a technician experienced with 48-volt mild hybrid systems strongly recommended
• Confirm exact engine code M256.930 matches your chassis specification before ordering
• Inspect and replace gaskets, seals, and fluids during installation
• Verify ISG wiring harness and 48-volt battery integration prior to first start-up
• Recommend a full diagnostic scan and ECU adaptation check post-installation