The 2.5-liter Mazda WL-T turbodiesel engine was produced in Japan from 1995 to 2006 and used in rear-wheel drive as well as fully driven models such as MPV, Bongo Friendee, and Proceed Marvie. The modified version of this engine with electronically controlled unit injectors is often referred to as WL-TE. The same line also includes the naturally aspirated WL diesel engine.
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 12 |
| Exact capacity | 2499 cm³ |
| Cylinder diameter | 93 mm |
| Piston stroke. | 92 mm |
| Power system | forklift chambers |
| Power | 110 - 130 HP |
| Torque | 265 - 295 nm |
| Compression ratio | 20 |
| Fuel type | diesel |
| Environmental class | EURO 2/3 |
| City | 11.7 litry |
| Route | 7.2 litry |
| Mixed | 8.9 litry |
The weight of the WL-T engine is 234 kg (with attachments). The WL-T engine number is located on a platform near the fuel injection pump. Cracks in the cylinder head are common. It is a reliable and durable diesel unit, but it is very sensitive to overheating. If gases appear in the expansion tank, simply replacing the gasket is not enough, as cracks in the cylinder head are usually discovered and it becomes necessary to look for a cylinder head on dismantling. The seals of the crankshaft and camshaft are another weak point of this unit, often requiring replacement when changing the timing belt. Also, oil often leaks from under the valve cover or intake manifold. Other disadvantages mentioned by owners on specialized forums include a relatively short lifespan of glow plugs, quirks of the electronically-controlled fuel injection pump, and weak exhaust manifold studs. And don't forget about adjusting the thermal clearances, as the valves tend to burn out quite frequently.
| B-series IV (UF) | 1995 - 1998 |
| B-series V (UN) | 1998 - 2006 |
| Bongo SG | 1995 - 2005 |
| Bongo Friendee I (SG) | 1995 - 2005 |
| MPV I (LV) | 1995 - 1999 |
| Proceed Marvie I (UV) | 1996 - 1999 |
| Courier 1 (BE91) | 1995 - 1998 |
| Freda 1 | 1995 - 2000 |
| Raider 1 | 1996 - 1997 |
| Ranger 1 | 1998 - 2006 |
The 2.0-liter Mazda RF7J diesel engine was produced by the company from 2005 to 2010 and installed in European versions of popular third, fifth, or sixth series models. This engine was essentially a modernized version of the well-known RF5C diesel engine. The MZR-CD lineup also includes the RF5C and R2AA engines.
The 2.2-liter Mazda R2AA diesel engine was produced by the company from 2008 to 2013 and installed in popular models such as the third and sixth series, as well as the CX-7 crossover. There was a version of this engine with reduced power output, rated at 125 HP, labeled as R2BF. The MZR-CD lineup also includes the following engines: RF5C and RF7J.
The 1.6-liter Mazda Y6 or 1.6 CiTD engine was produced in two versions from 2004 to 2015: first-generation units with designations Y406, Y601, Y642, and Y646 were equipped with a 16-valve cylinder head, while second-generation engines with designations Y650, Y655, Y661, and Y6Y1 had an 8-valve cylinder head. The MZ-CD series also includes a diesel engine designated Y4.
The 1.5-liter Mazda S5-DPTS diesel engine was produced in Japan from 2014 to 2019 and was installed in Mazda's smallest models such as the Mazda2, Mazda3, and CX-3 crossover. There is also a version of this engine with the i-ELOOP energy recovery system, designated as S5-DPTR. The Skyactiv-D range also includes the following engines: S8-DPTS and SH-VPTS.
1.5-liter, 16-valve Mazda B5-DE engine was produced by the company from 1989 to 2005 and installed in models such as Eunos 100 or Familia, as well as in Kia cars labeled as BFD. The most powerful version of this engine, B5-ZE with a power of 125 HP, was only offered in the Japanese market. Engines from the B series: B1, B3, B3-ME, B5, B5-ME, B6, B6-ME, B6-DE, BP, BP-ME.
The 2.5-liter fuel-injected engine Volkswagen 2.5 BGP was produced from 2005 to 2008 and installed in popular company models such as Golf or Jetta, in the American market. There were several counterparts of this engine with different designations: BGQ, BPR, and BPS. The CBTA engine also belongs to the EA855 line.