Mercedes-Benz 3.0 V6 CDI / BlueTEC OM642 (642.852) Engine for Sale
If you’re searching for a refined, powerful diesel engine designed for premium Mercedes vehicles, the Mercedes-Benz OM642 (engine code 642.852) is a proven and highly respected option. Between 2009 and 2017, Mercedes-Benz used this 3.0-liter V6 turbo diesel across the CLS and E-Class range, where smooth power delivery, strong torque, and long-distance efficiency were essential.
Powerful V6 Diesel with BlueTEC Efficiency
First of all, the 642.852 belongs to the widely used OM642 engine family. This 3.0-liter V6 turbocharged diesel engine produces between 170 kW and 195 kW (231–265 hp) depending on version.
As a result, the engine delivers effortless acceleration, strong mid-range torque, and relaxed high-speed cruising. In addition, BlueTEC and BlueEFFICIENCY technologies help reduce emissions while maintaining excellent performance and fuel efficiency.
Consequently, the engine suits both executive sedans and luxury four-door coupés perfectly.
Engine Specifications at a Glance
| Specification | Details |
|---|---|
| Engine Type | V6, turbocharged diesel |
| Displacement | 3.0 liters (2987 cc) |
| Power Output | 170–195 kW (231–265 hp) |
| Fuel Type | Diesel |
| Engine Code | 642.852 |
| Engine Family | OM642 |
| Injection System | Common rail direct injection |
| Emissions Tech | BlueTEC / BlueEFFICIENCY |
Smooth and Efficient Performance
Next, when paired with Mercedes automatic transmissions, the OM642 provides exceptionally smooth acceleration and quiet motorway cruising. Torque arrives early in the rev range, which makes city driving effortless while ensuring strong overtaking performance on highways.
Furthermore, the V6 layout minimizes vibration and noise, reinforcing the premium driving feel expected from Mercedes executive models.
Proven Reliability and Strong Market Demand
Because Mercedes engineered the OM642 platform for durability and high mileage, the 642.852 has built a strong reputation among owners and mechanics. At the same time, excellent parts availability and widespread use across multiple models make servicing straightforward.
For that reason, this engine remains highly desirable for engine replacements, export markets, and resale applications.
Compatible Mercedes-Benz Models
| Mercedes-Benz Model | Engine Code | Displacement | Power | Model Years |
|---|---|---|---|---|
| CLS (W218) 350 BlueTEC | 642.852 | 2987 cc | 190 kW | 2013–2016 |
| CLS (W218) 350 CDI BlueEFFICIENCY | 642.852 | 2987 cc | 195 kW | 2012–2017 |
| E-Class (W212) 300 BlueTEC / -T | 642.852 | 2987 cc | 170 kW | 2012–2015 |
| E-Class (W212) 300 CDI BlueEFFICIENCY / -T | 642.852 | 2987 cc | 170 kW | 2011–2013 |
| E-Class (W212) 350 BlueTEC | 642.852 | 2987 cc | 185 kW | 2012–2014 |
| E-Class (W212) 350 BlueTEC / -T | 642.852 | 2987 cc | 190 kW | 2014–2016 |
| E-Class (W212) 350 CDI BlueEFFICIENCY / -T | 642.852 | 2987 cc | 195 kW | 2009–2013 |
Why Choose the Mercedes-Benz OM642 642.852 Engine?
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Strong 3.0 V6 turbo diesel performance
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Power outputs up to 195 kW (265 hp)
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Proven OM642 reliability and durability
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BlueTEC / BlueEFFICIENCY emissions technology
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High demand for engine replacements and export
Premium Diesel Power for Mercedes Executive Models
In conclusion, the Mercedes-Benz OM642 (642.852) engine delivers the perfect balance of power, refinement, and long-term durability. Whether you’re replacing an engine in a CLS W218 or E-Class W212, this V6 diesel offers dependable performance backed by trusted Mercedes engineering.







