The 4.0-liter diesel engine of Mercedes OM629 was produced by the company from 2005 to 2010 and was only installed in the largest and most expensive models of the company, such as W211, W221, and X164. The engine was offered in one version, DE 40 LA, but with different indices: 420 CDI and 450 CDI. The V8 series also includes: OM628.
| Exact capacity | 3996 cm³ |
| Power system | Common Rail |
| Engine power | 306 - 320 HP |
| Torque | 700 - 730 nm |
| Engine block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder diameter | 86 mm |
| Piston stroke. | 86 mm |
| Compression ratio | 17.0 |
| Engine features | intercooler |
| Hydraulic compensator. | tak |
| Timing drive | chain (double) |
| Timing phase adjuster | there is no |
| Turbocharging | two GTB1752VK |
| What oils to use | 10.5 liters 5W-30 |
| Fuel type | diesel |
| Environmental class | EURO 4 |
| Approximate life expectancy | 320 000 HP |
| City | 15.6 litry |
| Route | 9.2 litry |
| Mixed | 11.6 litry |
The weight of the OM629 engine according to the catalog is 280 kg. The number of the OM629 engine is located at the junction of the block and the gearbox. This diesel engine has become more reliable than its predecessor, but still causes a lot of trouble. The main problems are related to leaking fuel injectors and failures of the high-pressure fuel pump. This unit quickly becomes clogged, especially when it comes to the EGR system. The engine is also very sensitive to overheating, which can lead to scuffing and cracks. At a mileage of 200,000 km, the turbocharger often fails and the timing chain stretches.
| E-Class W211 | 2006 - 2009 |
| S-Class W221 | 2005 - 2010 |
| GL-Class X164 | 2006 - 2010 |
| ML-Class W164 | 2007 - 2010 |
The 2.4-liter inline diesel engine from Mercedes, called the OM 616, was produced from 1973 to 1992 and was installed in both medium-sized models such as the W115, W123, and the G-Wagen off-road vehicle. This powertrain was significantly modernized in 1978, hence it has two versions. The four-cylinder engines include: OM615 OM601 OM604 OM611 OM640 OM646 OM651 OM668
The 2.2-liter inline diesel engine from Mercedes, model OM 611, was produced from 1997 to 2006 and used in both passenger cars, such as W202 or W210, and in Sprinter-type minibusses. There were two versions of the crankshaft, so some versions had different displacement. The R4 engines include: OM615 OM616 OM601 OM604 OM640 OM646 OM651 OM668
The 2.2-liter diesel engine Mercedes OM 646 was produced from 2002 to 2010 and installed in the C-Class, CLK-Class, E-Class models, as well as in Vito and Sprinter minibuses. There was a version of this engine with a transverse arrangement, the OM 644, for the Chrysler PT Cruiser. The R4 engine lineup includes: OM616 OM601 OM604 OM611 OM640 OM651 OM654 OM668
The 3.2-liter inline 6-cylinder Mercedes OM648 engine was produced from 2002 to 2006 and was exclusively installed in the W211 body E-Class models and the upgraded W220 body S-Class models. In addition to the standard version with a power output of 204 horsepower, a variant with reduced power output of 177 horsepower was also offered. The R6 series also includes diesel engines: OM603, OM606, OM613, and OM656.
The 3.0-liter turbocharged engine Audi CWGD 3.0 TFSI has been produced at the company's factories since 2016 and is installed in high-performance versions of popular models such as A4 B9, A5 F5, or Q5 FY. This power unit is the most powerful in its series, delivering 354 horsepower and a torque of 500 Nm. The EA839 line also includes engines: CZSE, DECA, and DLZA.
The 1.8-liter Opel X18XE1 engine was produced from 1998 to 2000 at the Hungarian factory and installed in the most popular models of the company at that time, such as the Astra, Vectra, and Zafira. This power unit had nothing to do with the X18XE engine and was a modification of the X16XEL engine. The X10 line also includes the following engines: - X14XE - X16XEL - X16SZR - X18XE