The 2.0-liter Opel A20NHT or LDK engine was produced by the company from 2008 to 2013 and was installed only on expensive versions of the rather popular Insignia model. This power unit was considered very unreliable and soon gave way to the A20NFT motor.
A-series family: A20NFT, A20NHT, A24XE, A28NET, A30XH.
Specifications
| Production years | 2008-2013 |
| Displacement, cc | 1998 |
| Fuel system | direct injection |
| Power output, hp | 220 |
| Torque output, Nm | 350 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.2 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | DCVCP |
| Turbocharging | twin-scroll |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.0 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Opel Insignia 2010) — city — highway — combined |
12.8 7.1 9.0 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 130 |
The engine was installed on:
- Opel Insignia A (G09) in 2008 – 2013.
Disadvantages of the A20NHT engine
- In the early years of production, owners often encountered sudden traction failures;
- The engine is constantly leaking oil, and it has an extremely large number of weak points;
- The timing chain runs very differently, many had to change it even at low mileage;
- A small resource here has an electronic throttle, as well as high pressure fuel pump;
- When using bad fuel, you can get to replace the piston up to 50,000 km.
Frequently asked questions about the Opel A20NHT
How much power does the Opel A20NHT make?
The Opel A20NHT develops 220 hp and 350 Nm of torque.
How much oil does the Opel A20NHT take and which one?
Engine oil capacity: 6.0 liters. Recommended oil: 5W-30.
Does the Opel A20NHT have a timing belt or chain?
The Opel A20NHT uses a timing chain.
Is the Opel A20NHT turbocharged?
Yes, the Opel A20NHT is turbocharged (twin-scroll).
Does the Opel A20NHT need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Opel A20NHT last?
The typical lifespan of the Opel A20NHT is ~220 000 km with proper maintenance.
What is the fuel consumption of the Opel A20NHT?
Opel Insignia 2010: city 12.8, highway 7.1, combined 9.0 L/100 km.
What cars was the Opel A20NHT installed on?
Opel Insignia A (G09) in 2008 - 2013.
What are the common problems of the Opel A20NHT?
In the early years of production, owners often encountered sudden traction failures. The engine is constantly leaking oil, and it has an extremely large number of weak points. All known problems.
This engine is used in some Saab 9-5 and 9-3 models as well as Vauxhall models.
The A20NHT is a solid engine I have insignia 2009 with this engine. It is now on 173,000km and all is fine