2.2 CDI "646821" Engine [e.g. E-Class W211, C-Class]

The Mercedes-Benz 2.2 CDI (engine code: 646821) is a high-performance diesel engine designed for mid-size and large cars. It is a four-cylinder unit with a displacement of 2.2 litres. Its design draws on advanced technology such as common-rail injection and multi-stage turbocharging, delivering better fuel efficiency and lower emissions.

The 646821 engine produces a peak output of 170 horsepower and a maximum torque of 400 Nm. It is a highly torquey engine, allowing for brisk acceleration and confident drivability. It also runs quietly, with minimal vibration.

The engine’s construction is durable and dependable. The connecting rods are engineered specifically to withstand high torque loads, and the cylinder heads are cast from robust iron. The oil system is designed to ensure a long service life and keep maintenance needs to a minimum.

The engine has received positive feedback for its performance, economy and durability. It is a highly popular engine choice in Mercedes-Benz diesel models, valued for its combination of power and reliability.

Mercedes-Benz has used the 646821 engine across several of its model lines over the years. Below are some of the models it has been fitted to:

The exact engine shown in the photo may no longer be available, but we will always send you an offer for the available engine complete with photos and full details, such as mileage and overall condition.