Mercedes C-Class W206 – Complete Engine | 654.820 | A6540101211 | Like New Condition | OEM Specification | Direct Replacement
Secure an exceptional engine find — a Mercedes-Benz C-Class W206 complete engine featuring the highly advanced 654.820 unit with part number A6540101211 in like-new condition — a virtually unused, near factory-fresh powertrain solution that represents an outstanding replacement option for any C-Class W206 owner, workshop, or specialist seeking a like-new engine replacement with total confidence in condition, specification accuracy, performance, and long-term reliability. A remarkable and genuinely compelling opportunity combining the most advanced diesel engine technology in the current Mercedes-Benz range with a condition so close to brand new that it is effectively indistinguishable from a new unit in every practical and operational respect.
The Mercedes-Benz 654.820 is a member of the highly acclaimed and universally celebrated OM654 diesel engine family — Mercedes-Benz’s most advanced, most technologically sophisticated, and most comprehensively engineered generation of diesel powerplants, representing a fundamental and generational leap forward in Mercedes-Benz diesel engine technology that has earned universal industry acclaim since its introduction as a benchmark-setting achievement in modern diesel engineering. The OM654 family introduced a series of revolutionary technological advances that simultaneously set new standards across every relevant diesel engine performance dimension — the innovative all-aluminium engine construction that delivers significant weight savings and improved thermal management over cast-iron predecessors, the advanced variable geometry turbocharging system that provides responsive and perfectly linear power delivery across the entire usable rev range, the state-of-the-art third-generation common rail direct injection system operating at exceptionally high injection pressures for outstanding combustion efficiency and fuel economy, the fully integrated and comprehensively developed Euro 6d emissions management system ensuring complete regulatory compliance and unrestricted operation in all European clean air zones, and the innovative coated cylinder bore technology that reduces internal friction and improves efficiency across the entire operating range.
The 654.820 variant is the specific calibration of the OM654 family engineered and factory-specified for the C-Class W206 application — Mercedes-Benz’s most current and most technologically advanced C-Class generation. Part number A6540101211 provides the precise factory identification confirming this as the exact, application-specific engine unit for the W206 C-Class — ensuring absolute confidence in dimensional correctness, mounting point compatibility, transmission interface accuracy, and complete electronic system integration with the W206 platform architecture. In like-new condition, every internal and external component of this engine — including precision-engineered pistons and connecting rods, main and big-end bearings, camshaft, variable geometry turbocharger, high-pressure common rail injection system, EGR system, cylinder head, timing chain assembly, and all ancillary systems — shows virtually zero wear and remains in near factory-fresh condition, offering an exceptional service life, full performance output, and outstanding long-term reliability from the moment of installation.
Whether you are replacing a worn or damaged engine, carrying out a full powertrain overhaul, or restoring your C-Class W206 to full factory engine specification, this like-new 654.820 complete engine unit A6540101211 represents exceptional and genuinely rare value.

Technical Specifications:
Engine: Mercedes-Benz 654.820
Part Number: A6540101211
Condition: Like New
Compatible Model: Mercedes-Benz C-Class W206
Fitment: Direct OEM replacement

Please verify compatibility using your vehicle’s VIN or engine code before ordering. Professional installation by a qualified technician is strongly recommended.