The 2.0-liter diesel engine Toyota 1AD-FTV or 2.0 D4D was installed on the company's models for the European market, such as Auris, Avensis, Corolla, and Verso, from 2005 to 2018. After the introduction of Euro 5 standard, this powertrain received piezoelectric injectors instead of electromagnetic ones. The AD family also includes high-pressure diesel engines: 2AD-FTV and 2AD-FHV.
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 16 |
| Exact capacity | 1998 cm³ |
| Cylinder diameter | 86 mm |
| Piston stroke. | 86 mm |
| Power system | Common Rail |
| Power | 122 - 127 HP |
| Torque | 300 - 310 nm |
| Compression ratio | 15.8 - 16.8 |
| Fuel type | diesel |
| Environmental class | EURO 4/5 |
| City | 6.7 litry |
| Route | 4.6 litry |
| Mixed | 5.4 litry |
The engine weight of 1AD-FTV according to the catalog is 180 kg. The engine number 1AD-FTV is located at the junction of the block and the gearbox. The most well-known problem with these diesel engines is the regular blowing of the cylinder head gasket. These engines also suffer from erosion of mating surfaces, which exacerbates the situation. Oil consumption is the second most common complaint on the forums. There have even been a number of recall campaigns to replace pistons, but the oil consumption issue remains. It is advisable to replace the washers under the injectors every 60,000 km or they will burn out, and only an experienced specialist will be able to remove the clogged injectors without breaking them. The following problems are typical for almost any modern diesel: rapid EGR valve fouling, regeneration failures and DPF failure, turbine geometry sticking, and low lifespan of piezo injectors introduced in 2009.
| Auris 1 (E150) | 2006 - 2012 |
| Auris 2 (E180) | 2012 - 2015 |
| Avensis 2 (T250) | 2005 - 2009 |
| Avensis 3 (T270) | 2009 - 2015 |
| Corolla 10 (E150) | 2006 - 2013 |
| RAV4 4 (XA40) | 2012 - 2015 |
| Verso AR10 | 2006 - 2009 |
| Verso 1 (AR20) | 2009 - 2018 |
The 1.8-liter diesel engine Toyota 1C was produced at the Japanese factory from 1982 to 1992 and was installed in many compact models of its time, such as Carina, Corona, and Corolla. Versions with a transverse arrangement were usually designated as 1C-L, while those equipped with a catalyst were labeled as 1C-LC. The C series includes: 1C‑T, 2C, 2C‑E, 2C‑T, 2C‑TE, 3C‑E, 3C‑T, and 3C‑TE.
The 2.0-liter turbocharged diesel engine Toyota 2C-TE was installed by the company from 1997 to 2000 and only in the pre-facelift version of the Avensis model for the European market. This engine differed from other 2C units by using an electronically controlled fuel injection system (TNVDE) from Denso. The C series includes: 1C, 1C-T, 2C, 2C-E, 2C-T, 3C-E, 3C-T, and 3C-TE.
The 2.2-liter Toyota 3C-E diesel engine, produced by the company from 1998 to 2007, was installed in Lite Ace and Town Ace minivans, as well as three generations of Corolla for the Japanese market. This engine stood out in its series with the presence of Denso's electronically controlled fuel injection system. The C series also includes: 1C, 1C-T, 2C, 2C-E, 2C-T, 2C-TE, 3C-T, and 3C-TE.
The 2.4-liter turbocharged diesel engine Toyota 2LTE was installed by the company from 1989 to 2001 and used in both passenger cars, such as the Crown, and off-road vehicles, such as the Hilux Surf. Unlike the similar 2LT engine, the 2LTE engine differed by the presence of an electronically controlled Common Rail fuel injection system by Denso. The series of L diesel engines include: 2L, 2L-T, 2L-THE, 3L, 5L, and 5L-E.
The 2.5-liter V6 engine Hyundai-Kia G6BV was produced in South Korea from 1998 to 2005 and was installed in advanced versions of popular sedans Sonata, Grandeur or Magentis. In some sources, this engine is listed under a slightly different index G6BW. The Delta family also includes engines: G6BA and G6BP.
The 0.8-liter, 12-valve Hyundai G4HA engine was produced by the company from 1997 to 2003 and installed in models such as Atos, Atos Prime, Amica, and Kia Visto for the Asian market. There are naturally aspirated and turbocharged versions of this engine, as well as a gas version called L4HA. The Epsilon line also includes: G3HA, G4HC, G4HD, G4HE, and G4HG.