What engine does the Mercedes-Benz R-Class have?
3 Answers
Mercedes-Benz R-Class is equipped with a 3.0T V6 engine, model number 276826, with an actual displacement of 2996ml. The 276826 engine features twin-turbocharging intake, 6 cylinders arranged in a V formation, and a DOHC valve train. The 276826 engine reaches its maximum power at 5000 rpm and maximum torque at 4500 rpm. The Mercedes-Benz R-Class not only boasts features like permanent all-wheel drive, advanced axle design, rear air suspension, and long wheelbase, but also comes with a series of dynamic performance systems designed to enhance driving comfort. For instance, it uses double-wishbone suspension for the front wheels to improve driving stability and handling performance, employs an advanced four-link structure for the rear wheels, and includes rear axle air suspension as standard equipment.
Those who've driven the older Mercedes-Benz R-Class know it offered quite a range of engine options. The most common were the 3.0L and 3.5L V6 petrol engines - the R350 packed a 272-horsepower unit that delivered rock-solid acceleration. The range-topping R500 was even more impressive, stuffing a 5.0L V8 under the hood for neck-snapping thrust. Diesel enthusiasts weren't left out either, with the R320 CDI's ultra-efficient 3.0L V6 diesel being perfect for long hauls. Later facelifts saw the R400 upgraded with twin-turbocharging, bumping output to 333 horsepower. Just be aware these older engines are prone to oil leaks as they age - repairs can hurt your wallet, so regular dipstick checks are advised. Though discontinued, you'll still spot many on the road - when buying used, listen carefully for any unusual engine noises.
I've been researching Mercedes-Benz engines for over a decade, and the R-Class is quite interesting. The first-generation R-Class primarily featured the M272 series V6 engines, with displacements of 3.0L and 3.5L, paired with a 7AT transmission that was remarkably smooth. The mid-cycle update switched to the M276 engine, adding direct fuel injection technology, with the most notable being the 3.0T twin-turbo in the R400, which had significantly more explosive power than the naturally aspirated versions. The diesel models used the OM642 engine, known for its excellent low-end torque. These engines were also used in the S-Class and E-Class, with decent reliability. However, it's important to watch out for the early balance shaft issues with the M272, and it's recommended to inspect the sprocket after 100,000 kilometers. With regular timing chain and spark plug replacements, these engines can easily last 300,000 kilometers.
