Mercedes-Benz OM646.980 2.2 CDI Engine

Mercedes-Benz OM646 Engine Overview

The Mercedes-Benz OM646 Engine is a complete OEM 2.2L turbo diesel engine designed for dependable direct replacement in compatible Mercedes-Benz Vito and Viano models.

Engine code OM646 DE 22 LA (646.980) identifies this genuine Mercedes-Benz diesel engine as a reliable long block assembly engineered for smooth operation, strong fuel economy, and dependable long-term durability.

With approximately 122,000 km (~75,807 miles), this complete dressed engine assembly includes essential ancillary components pre-attached, helping reduce installation complexity and simplifying engine replacement projects.

Built to Mercedes-Benz factory standards, the OM646 diesel platform delivers dependable turbocharged performance, efficient daily drivability, and durable commercial vehicle reliability.

Features & Specifications

• Part Type: Complete dressed engine assembly

• Engine Code: OM646 DE 22 LA (646.980)

• Displacement: 2.2L I4 Turbo Diesel

• Mileage: Approx. 122,000 km (~75,807 mi)

• Year: 2009

• Fuel Type: Diesel

• Condition: Used, complete and dressed assembly

• Vehicle Platform: Mercedes-Benz Vito/Viano (W639)

• Manufacturer: Mercedes-Benz OEM

• Installation Type: Engine replacement

• Factory Mercedes-Benz diesel configuration

• OEM compatibility and fitment

Product Overview & Core Specifications

• Engine Code: OM646 DE 22 LA (646.980)

• Displacement: 2.2L I4 Turbo Diesel

• Mileage: ~122,000 km (~75,807 mi)

• Year: 2009

• Condition: Used, Complete & Dressed Assembly

• For Vehicle: Mercedes-Benz Vito/Viano (W639 Platform)

What’s Included – The Complete Package

This engine is supplied with critical ancillaries pre-attached:

• Fuel System: High-Pressure Injection Pump & Injectors

• Turbo System: Turbocharger & Exhaust Manifold

• Electrical: Alternator & relevant sensors

• Induction: Intake Manifold with EGR components

• Lubrication: Oil Filter Housing & Oil Cooler

• Drive: Timing Chain Assembly (OM646 is chain-driven)

• Also Includes: Injection lines (strip), and engine-mounted brackets.

Key Benefits of a “Complete & Dressed” Engine

 Reduced Labor Time: Many complex components are already installed and aligned.
Guaranteed Component Compatibility: All attached parts are original and matched to the engine.
Ideal for Complete Swap: Provides nearly everything needed to replace a failed long block.
Simplifies Sourcing: Eliminates the need to separately purchase and fit a turbo, injectors, and pump.

Important Buyer Notes & Requirements

 Professional Installation & Verification Still Required.

• Condition: Sold as a used, complete assembly. A pre-purchase inspection of critical items (turbo shaft play, injector seal surfaces) is advised.

• Components YOU Must Still Provide/Transfer:

  • Engine Control Unit (ECU) and complete engine wiring harness.

  • Starter Motor, A/C compressor, and engine mounts.

  • Any emission components (DPF, EGR valve) not visibly attached.

  • All coolant hoses, pipes, and intercooler.

• Electronic Integration: The vehicle’s original ECU must be used and will require adaptation via Mercedes-Benz diagnostic systems (e.g., DAS/XENTRY).

• VIN Verification: Contact seller to confirm compatibility using your VIN, as variations exist within the OM646 family for different power outputs and emissions standards.

Why It’s a Smart Choice

The Mercedes-Benz OM646 Engine is an excellent replacement solution for customers seeking dependable OEM diesel performance, simplified installation, and factory compatibility.

Benefits include:

• Genuine Mercedes-Benz OEM engineering

• Complete dressed engine configuration

• Reliable turbo diesel efficiency

• Direct replacement compatibility

• Smooth daily driving performance

• Reduced installation complications

• Fuel-efficient diesel operation

• Maintains original factory specifications

Unlike low-quality aftermarket alternatives, this genuine OM646 diesel engine preserves original Mercedes-Benz drivability, electronics compatibility, and fuel efficiency standards.Performance & Efficiency

Performance & Efficiency

The Mercedes-Benz OM646 Engine delivers dependable diesel performance, responsive torque output, and efficient fuel economy for passenger and commercial vehicle applications.

Performance highlights include:

• Reliable 2.2L turbo diesel performance

• Smooth turbocharged power delivery

• Strong low-end torque response

• Excellent fuel efficiency standards

• Durable long-distance reliability

• Mercedes-Benz drivetrain compatibility

• Optimized commercial vehicle drivability

• OEM diesel engineering efficiency

The OM646 diesel platform is respected for combining durability, efficiency, and dependable long-term operation.

Reliability & OEM Engineering

This genuine Mercedes-Benz OM646 Engine is manufactured to OEM standards to ensure dependable operation, precise fitment, and long service life.

The engine offers:

• OEM factory quality standards

• Durable diesel engine internals

• Smooth operational reliability

• Factory drivetrain compatibility

• Reduced installation complexity

• Long-term drivability

• Proven Mercedes-Benz engineering

• Reliable commercial vehicle performance

Perfect for:

• Mercedes-Benz Vito engine replacements

• Mercedes-Benz Viano repairs

• OEM drivetrain replacements

• Commercial van maintenance

• Professional workshop installations

• Daily-use vehicle servicing

Delivery & Warranty

• Genuine Mercedes-Benz OEM engine assembly

• Professionally inspected before dispatch

• Secure packaging for transportation

• Ready for professional installation

• Reliable OEM replacement solution

• International shipping available

• Complete engine supplied as shown

• Long-lasting diesel engine reliability

Additional Information

The Mercedes-Benz OM646 Engine is designed for workshops, fleet operators, and Mercedes-Benz owners seeking authentic OEM diesel reliability and dependable replacement performance.

Its 2.2L turbo diesel configuration delivers dependable fuel economy, strong torque performance, and smooth operation while maintaining original Mercedes-Benz engineering standards.

Whether replacing a damaged engine, maintaining a commercial van fleet, or restoring OEM drivability, this genuine OM646 diesel engine provides trusted Mercedes-Benz quality and long-term value.

👉 Check compatibility before purchase: https://carenginesales.com/how-to-know-if-an-engine-fits-your-car-complete-compatibility-guide/

👉Learn more about Mercedes Engines performance and specifications: https://www.mercedes-benz.com/Cars