October 22, 2026
What is a remanufactured car engine?October 21, 2026
What is engine assembly?The M256 is a new generation of inline-six (Inline-6 / L6) gasoline engines launched by Mercedes-Benz in 2017, marking the brand’s return to the classic inline-six architecture after nearly 20 years (the M276 series was designed to fully replace the V6 architecture).
Evolution and Cutting-Edge Technology of the M256.930:
High-Power, High-Specification Version: The M256.930 is the high-power variant within the M256 family, primarily installed in Mercedes-Benz’s top-tier flagship models (such as the all-new W223 S-Class S 500, GLE 450/530, etc.).
Beltless Design: The M256 eliminates traditional engine belt drives; auxiliary components such as the water pump and air conditioning compressor are all powered by a 48V high-voltage electrical system, significantly reducing mechanical wear on the engine.
Electronic Twin-Charging: This system combines an exhaust gas turbocharger (EGT) with a 48V electronically assisted compressor (eZV / Electric Auxiliary Compressor). At low RPMs, the electronic compressor builds pressure in just 0.3 seconds, completely eliminating the lag typically associated with traditional large-displacement turbochargers.
Integrated Starter-Generator (ISG): The electric motor is positioned between the engine and the 9G-Tronic transmission. In addition to providing seamless start-stop functionality, it can instantly deliver an additional 21–22 HP of power and 250 N·m of torque (EQ Boost function).
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Engine Specifications:
Engine Code: M256.930 (M256 E30 DE LA H)
Cylinder Configuration: Inline-6 / L6
Displacement: 2,999 cc (3.0 Liters)
Bore x Stroke: 83.0 mm × 92.4 mm
Intake and Supercharging: Exhaust Gas Turbocharger + Electric Auxiliary Compressor
Mild Hybrid System (MHEV): 48V system with ISG integrated motor (EQ Boost)
Fuel Delivery: Direct Injection
Block/Head Material: All-aluminum block (with NANOSLIDE® mirror-finish cylinder wall coating) / Aluminum cylinder head
Valve Train: DOHC 24-valve, with CAMTRONIC variable valve lift and dual variable valve timing (VVT)
Engine Power: 435 HP (320 kW) @ 5,900–6,100 RPM (plus 21–22 HP of additional assistance from the 48V ISG motor)
Engine Torque: 520 N·m @ 1,800–5,800 RPM (plus 250 N·m of instantaneous motor torque)
Compression Ratio: 10.5:1
Emissions Standards: Euro 6d / China VIb
The M256.930 engine code is associated with selected Mercedes-Benz applications, potentially including:
Mercedes-Benz S-Class S450 EQ Boost, selected W222 and W223 versions
Mercedes-Benz E-Class E450, selected W213 versions
Mercedes-Benz E-Class AMG E53, selected applications
Mercedes-Benz CLS450, selected C257 versions
Mercedes-AMG CLS53, selected applications
Mercedes-AMG GT43 / GT53, selected X290 versions
Mercedes-Benz GLE450 / GLE53, selected applications
Mercedes-Benz GLS450, selected applications
This list is a preliminary application guide, not a guarantee of direct interchangeability. Not every model, production year or market specification uses the same engine assembly.
Fitment Verification Required: Please provide the vehicle VIN, model year, engine serial number and original engine code before purchase.
OE Part Number References:
Long Block Engine: 2560100200, 2560100800, 2560101500, A2560100200
Turbocharger Assembly: 2560900100, 2560900300, A2560900100
Electric Auxiliary Compressor / eZV: 2560900200, A2560900200
High-Pressure Fuel Pump: 2560700100, A2560700100
To reduce the risk of ordering an incompatible unit, please provide:
Vehicle VIN
Original engine serial number
Vehicle model and production year
Original engine code
Photos of the existing engine, if available
The applicable OE reference should be verified against the original parts catalog before purchase.
Engine Long Block Configuration
An engine long block generally refers to an assembled core engine. The exact supply configuration depends on the product offered.
Potential components may include:
Engine block or crankcase
Cylinder head or heads
Crankshaft
Pistons and connecting rods
Camshafts and valvetrain components
Timing components, depending on the supplied configuration
Turbochargers, auxiliary electric compressors, fuel injectors, high-pressure fuel pumps, intake and exhaust manifolds, sensors,
wiring harnesses, electronic control units and 48V hybrid components must be confirmed separately.
The 48V starter-generator, battery, inverter and related hybrid system components should not be assumed to be included in an engine long block.
Please request the actual packing list and product photographs before purchase to confirm the supplied configuration.
We support professional automotive businesses seeking engine supply solutions for repair, replacement and distribution.
Our B2B service can support:
Wholesale and distributor inquiries
Engine identification and application checks
Product configuration confirmation
Export packaging coordination
Order documentation, subject to availability
Shipping arrangements based on destination and order requirements
For an accurate quotation, please provide the required quantity, destination country, target application and preferred product condition.
No. M256.930 is a specific engine variant. Related M256 engines may differ in output, accessory configuration and vehicle application. Confirm the full engine code and VIN before ordering.
Not necessarily. The supplied configuration varies by product. Turbocharging components, the integrated starter-generator, 48V battery, inverter, wiring and other accessories must be confirmed separately.
The engine code is associated with selected S-Class, E-Class, CLS, AMG GT, GLE and GLS applications. Exact compatibility must be verified using the vehicle VIN and original engine code.
The applicable OE assembly number should be confirmed through the vehicle VIN and original parts catalog. The engine code alone is not sufficient to establish the complete OE part number.
Please contact us with the required quantity, destination country, vehicle application and product condition. Availability, lead time and commercial terms will be confirmed for the specific order.
Looking for a Mercedes-Benz M256.930 3.0L turbocharged inline-six engine long block?
Contact us with your vehicle VIN, engine serial number, required quantity and destination country. We can help confirm engine identification and product configuration before quotation.
Contact us today for application verification, product details and a B2B quotation.
Mercedes-Benz and the relevant vehicle model names are used solely to identify potential vehicle applications. This description does not imply that the product is manufactured, sponsored or endorsed by Mercedes-Benz. Fitment and OE references must be verified for each order.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
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