D3, D4 and D5 are turbocharged diesel engines powered by equipped with a common rail injection system and installed in Volvo models. They were first deployed in 2001. Today, these engines are used on most of the brand's models. The engines are characterized by excellent performance and reliability. They are quiet, easy to maintain and help reduce fuel consumption.
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Features of D3, D4 and D5 engines
D3, D4 and D5 engines have 4 or 5 cylinders. They are made of aluminum. These engines have a single or twin turbo. In some cases, a variable geometry turbocharger is used. Depending on the version, the injection system can be fitted with electromagnetic or piezoelectric injectors. A belt is used in the valve timing mechanism. Some engines have I-Art, an in-house development by Volvo. Here, individual pressure and temperature sensors and microprocessors are used for each injector. This ensures that the engine runs smoothly and contributes to the lowest possible fuel consumption and emissions of pollutants.
Popular D3, D4 and D5 Engines
| Version name | Index | Number of cylinders | Number of valves | Displacement, l | Max. Power, hp | Max. torque, Nm | Year of manufacture | Volvo models equipped with this engine type |
| D3 | D4204T16 | 4 | 16 | 2.0 | 150 | 320 | 2018 | V40CC; XC40; S90; V60 |
| D4204T9 | 4 | 16 | 2.0 | 150 | 320 | 2015 | V40; S90; XC40; V60; S60; V70; V90 | |
| D4204T4 | 4 | 16 | 2.0 | 150 | 350 | 2016 | S60CC; V60CC; V90; V60; XC60 | |
| D5204T2 | 5 | 20 | 2.0 | 163 | 400 | 2010 | XC60; S60; V70; S80 | |
| D4 | D4204T14 | 4 | 16 | 190 | 400 | 2014 | V60; S90; XC60; S60; V40; V90; XC90 | |
| D5204T | 5 | 20 | 2.0 | 177 | 400 | 2009 | C30; C70; S40; V50 | |
| D4204T6 | 4 | 16 | 2.0 | 190 | 420 | 2016 | XC90 | |
| D5 | D5244T | 5 | 20 | 2.4 | 163 | 340 | 2001 | S60; V70; S80; XC70; XC90 |
| D5244T4 | 5 | 20 | 2.4 | 185 | 400 | 2005 | S60; XC60; S80; XC70; V70; XC90 | |
| D5244T15 | 5 | 20 | 2.4 | 215 | 440 | 2010 | V60; S80; XC60; S60; XC70 | |
| D4204T11 | 4 | 16 | 2.0 | 225 | 470 | 2016 | S60; V70; XC90 |
Common defects of D3, D4 and D5 engines
| Defects | Engines |
| The rubber hoses of the turbocharger and intercooler often tear. | D4204T14 |
| The seals leak quickly. | D4204T14 |
| The valve cover gasket can leak. | D4204T14 |
| The timing belt has a short lifespan. | D4204T14; D5244T4; D5244T15; D5244T |
| The diesel particulate filter and the EGR valve clog up fairly quickly. | D4204T14; D5244T15; D5244T |
| The intercooler seal quickly becomes unusable. | D4204T9; D4204T4 |
| The hydraulic valve lifters are very sensitive to the fuel quality. | D5244T15; D5244T4; D5244T |
| Injectors often break. | D5244T |
| The fuel rail pressure control valve sometimes breaks. | D5244T |
| The tumble flaps of the intake manifold often stick. | D5244T4 |
| The Turbocharger actuator fails prematurely. | D5244T4 |