D-4D designates a series of turbocharged and common diesel engines -Rail injection. These are installed in Toyota and Lexus vehicles. They were first used in the 1999 Toyota Avensis. In a short time they had earned a reputation for being reliable, durable, powerful and economical engines.
Features of D-4D engines
Most D-4D engines have 4 cylinders in-line with 16 valves. With the exception of engines 1VD-FTV with 8 cylinders and 32 valves and 1ND-TV and 2WZ-TV with 4 cylinders and 8 valves. Depending on the version, the engine block is made of aluminum or cast iron. The fuel system is usually from Denso, a little less often from Siemens or Bosch. The valve timing mechanism uses a chain. Only a few versions are equipped with a strap. D-4D engines are all turbocharged. Some of these may be equipped with an intercooler. In some cases, a variable geometry turbocharger is used instead of a conventional one.
Popular D-4D-Engines
| Engine index | Displacement, l | Max. Power, hp | Max. Torque, Nm | Year of manufacture | Car models equipped with this type of engine |
| 1AD-FTV | 2.0 | 122-127 | 300-310 | 2005 | Toyota Auris E180; Toyota Verso AR20; Toyota RAV4 XA40; Toyota Avensis T250; Toyota Corolla E150; Toyota Auris E150; Toyota Avensis T270; Toyota Verso AR10 |
| 2AD-FTV | 2.2 | 136–150 | 310– 360 | 2005 | Toyota Avensis T250; Toyota Verso AR20; Toyota Avensis T270; Toyota RAV4 XA30; Toyota Verso AR10; Toyota RAV4 XA40; Lexus IS XE20 |
| 1CD-FTV | 2.0 | 90-116 | 215-280 | 1999 | Toyota Avensis T220; Toyota Corolla E120; Toyota Avensis Verso XM20; Toyota Avensis T250; Toyota Corolla E110; Toyota RAV4 XA20; Toyota Corolla Verso E120; Toyota Previa XR30 |
| 1KD-FTV | 3.0 | 163-188 | 350-420 | 2000 | Land Cruiser Prado J120; Toyota Fortuner AN60; Land Cruiser Prado J150; Toyota Hilux N140; Toyota Fortuner AN160; Toyota Hilux AN10; Toyota Hilux AN120; Toyota 4Runner N210 |
| 2KD-FTV | 2.5 | 120-142 | 325-343 | 2001 | Toyota Fortuner AN60; Toyota Hilux AN120; Toyota Innova AN40; Toyota Fortuner AN160; Toyota Hilux N140; Toyota Hilux AN10; Toyota 4Runner N210; Toyota Innova AN140 |
| 1ND-TV | 1.4 | 68-90 | 170-205 | 2002 | Toyota Yaris XP90; Toyota Auris E150; Toyota Yaris XP10; Toyota Auris E180; Toyota Corolla E120; Toyota Probox XP50; Toyota Corolla E150; Toyota Etios AK10; Toyota Yaris Verso XP20; Toyota iQ AJ10; Toyota Yaris XP130; Toyota Corolla E170; Toyota Urban Cruiser XP110; Toyota Verso-S XP120 |
| 1VD-FTV | 4.5 | 202–286 | 430 –650 | 2007 | Land Cruiser J70; Land Cruiser J200; Lexus LX450d J200 |
| 2WZ-TV | 1.4 | 54 | 130 | 2005 | Toyota Aygo AB10 |
Common defects of D-4D-engines
| Defects | Engine |
| There is a high risk of thermal damage to the cylinder head gasket. | 1AD-FTV; 2AD-FTV |
| Injector sealing rings often burn out. | 2AD-FTV; 1AD-FTV |
| Fast carbon deposition on the EGR valve. | 1AD-FTV; 1CD FTV; 2AD-FTV |
| The engine oil consumption increases sharply. This usually happens because the piston rings are sticking or in some cases due to a failed turbocharger. | 1AD-FTV; 2KD FTV; 1ND TV; 1KD FTV; 2AD-FTV |
| Injectors clog and wear out quickly, especially if poor quality fuel is used. | 1CD-FTV; 2KD FTV; 1KD-FTV |
| The suction control valves of the high-pressure fuel pump often break. | 2WZ-TV; 1CD-FTV |
| The engine oil pressure sensor has a short service life. | 1CD-FTV |
| The pistons are prone to cracking. | 1KD-FTV; 2KD-FTV |
| Oil leaks from under the engine gaskets due to blockage of the crankcase ventilation system. | 1ND-TV |
| The fuel filter clogs quickly. | 1VD-FTV |
| The crankshaft damper disc is easily damaged and broken. | 2WZ -TV |