The 2.8-liter V6 Turbo engine, designated as Z28NET, was produced in Australia from 2005 to 2008 and installed in Opel Vectra and Signum models before being replaced by a similar unit compliant with Euro 5 standard - A28NET. The same engine was also used in Saab vehicles under its own index, B284L. The Z series also includes the following engines: Z20LET, Z22SE, Z22YH, Z24SED, and Z32SE.
| Typ | V-type |
| Number of cylinders | 6 |
| number of valves | 24 |
| Exact capacity | 2792 cm³ |
| Cylinder diameter | 89 mm |
| Piston stroke. | 74.8 mm |
| Power system | distributed injection |
| Power | 250 HP |
| Torque | 350 nm |
| Compression ratio | 9.5 |
| Fuel type | 92 |
| Environmental class | EURO 4 |
| City | 17.1 litry |
| Route | 7.3 litry |
| Mixed | 10.9 litry |
The weight of the Z28NET engine according to the catalog is 215 kg. The engine number Z28NET is located at the junction of the block and the gearbox. Chain stretching in the timing drive is done with three plate chains from Morse with a modest resource, often they stretch up to 100,000 km, and their replacement is complex and quite expensive. Engine overheating: This unit quickly overheats, so keep an eye on the condition of the cooling system, moreover, the thermostat here is not very reliable and coolant leaks often occur. Air leakage: The thin-walled air duct that goes from the air filter to the intake manifold wears out quickly. When unaccounted for air enters, the engine starts to run unstable. Turbocharger: The turbine itself is reliable and the problems are caused only by the bypass membrane and the bypass valve. Their failure results in insufficient or excessive boost pressure. Other drawbacks: The weak points of this engine also include the electronic engine control unit, fuel pump, oil pressure sensor, power steering pump, and electric vacuum brake booster.
| Signum A (Z03) | 2005 - 2008 |
| Vectra C (Z02) | 2005 - 2008 |
| BLS 1 (GM-E) | 2006 - 2009 |
| 9-3 II (YS3F) | 2006 - 2008 |
The 2.4-liter gasoline engine Opel A24XE or A24XF was produced from 2010 to 2018 and used in European versions of popular models such as Opel Antara and Chevrolet Captiva. These engines are actually versions of the GM units LE5 and LE9, which have been known since 2006. The A series also includes the following power units: A20NFT, A20NHT, A28NET, and A30XH.
The 2.8-liter engine Opel A28NET or LP9 was produced in Australia from 2008 to 2013 and installed in the turbocharged versions of the Insignia and second-generation Saab 9-5 with the B284L index. There was also a version of this engine with turbocharging, the A28NER, with a power output of 325 HP and torque of 435 Nm. The A series also includes the following engines: A20NFT, A20NHT, A24XE, and A30XH.
The 3.0-liter V6 gasoline engine Opel A30XH or A30HF was introduced into production only from 2010 and is installed in several larger models of the GM company, including the popular Antara and Kaptiva. These engines are designated LF1 and LFW, respectively, in the American corporation's catalog. The A series also includes the following power units: A20NFT, A20NHT, A24XE, and A28NET.
The 2.2-liter engine Peugeot EW12J4 or 3FZ was produced in France from 1999 to 2009 and installed in popular mid-size models of the group, such as 406, 407, 607 or 807. There was also a version of this engine with higher compression ratio - EW12E4 or 3FY. The EW engine lineup also includes: - EW7J4, - EW7A, - EW10J4, - EW10A and - EW10D.
1.4-liter Volkswagen CGGA 1.4 MPi petrol engine was produced from 2008 to 2014 and installed in popular models such as the Golf 6, including the Plus version, and the Skoda Octavia 2. This engine was one of the last naturally aspirated engines in its class by the company. The EA111-1.4 engine lineup includes: AEX, AKQ, AXP, BBY, BCA, BUD, and CGGB.