Only the company’s rear and all-wheel drive models, like the Frontera or Omega, were equipped with the 2.2-liter diesel Opel Y22DTH or LL9, which was manufactured between 2000 and 2004. The X22DTH engine was essentially updated for EURO 3 environmental standards by this power unit.

The engines Y17DT, Y20DTH, and Y22DTR are also members of the Y family.
The engine was mounted on:
- Opel Frontera B (U99) in 2000 – 2004;
- Opel Omega B (V94) in 2000 – 2003.
Specifications
| Production years | 2000-2004 |
| Displacement, cc | 2171 |
| Fuel system | direct injection |
| Power output, hp | 115 – 120 |
| Torque output, Nm | 260 – 280 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 84 |
| Piston stroke, mm | 98 |
| Compression ratio | 18.5 |
| Features | intercooler |
| Hydraulic lifters | yes |
| Timing drive | two chains |
| Phase regulator | no |
| Turbocharging | VGT |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 6.1 |
| Fuel type | diesel |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Opel Omega 2002) — city — highway — combined |
9.6 5.6 7.1 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 195 |
Disadvantages of the Y22DTH engine
Above all, frequent fuel system airing will lead to issues;
The Bosch VP44 capricious injection pump’s electrical malfunctions rank second;
Turning the liners or shattering the crankshaft are risks associated with continuous driving in tightness;
Fuel and oil mix when the rubber gaskets beneath the injectors dry out;
Remember to burn the particulate filter and clean the EGR valve on a periodic basis.
