The 2.0-liter diesel engine Opel A20DTH or LBS was produced from 2008 to 2015 and was installed on a number of the most popular models of the concern, such as Astra, Insignia and Zafira. This unit is essentially a modification of the famous Italian diesel engine Fiat Multijet II.
The A family: A13DTE, A17DTJ, A17DTR, A20DTH, A22DM, A22DMH.
The engine was installed on:
- Opel Astra J (P10) in 2009 – 2015;
- Opel Cascada A (W13) in 2013 – 2015;
- Opel Insignia A (G09) in 2008 – 2014;
- Opel Zafira C (P12) in 2011 – 2014.
Specifications
| Production years | 2008-2015 |
| Displacement, cc | 1956 |
| Fuel system | Common Rail |
| Power output, hp | 160 – 170 |
| Torque output, Nm | 350 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 90.4 |
| Compression ratio | 16.5 |
| Features | intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | VGT |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.5 |
| Fuel type | diesel |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Opel Insignia 2010) — city — highway — combined |
6.9 4.6 5.4 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 190 |
Disadvantages of the A20DTH engine
- Power units until 2013 often wedged when driving at high speed;
- The reason for the wedge is oil starvation of the main liners, but the culprits are different;
- Also, owners are regularly worried about jamming of the intake manifold flaps;
- Antifreeze often oozes from the intake channel, and this is quite dangerous for the engine;
- Due to the drying of the sealing rings, a heat exchanger will usually leak by 50,000 km;
- Engine speed is most often floating due to contamination of the fuel pressure regulator;
- Typical problems with the particulate filter and the EGR valve are also present here.
