The 3.0-liter Audi CGWA 3.0 TFSI engine was manufactured by the company's factories from 2009 to 2013 and used in the four-wheel drive version of the fourth-generation A8 model before the facelift. This power unit was actually a slightly modernized version of the engine with the CAJA index. The EA837 line also includes the following engines: BDX, BDW, CAJA, CGWB, CREC, and AUK.
| Exact capacity | 2995 cm³ |
| Power system | direct injection |
| Engine power | 290 HP |
| Torque | 420 nm |
| Engine block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder diameter | 84.5 mm |
| Piston stroke. | 89 mm |
| Compression ratio | 10.5 |
| Engine features | DOHC |
| Hydraulic compensator. | tak |
| Timing drive | 4 chain |
| Timing phase adjuster | on suction shafts |
| Turbocharging | compressor |
| What oils to use | 6.5 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 5 |
| Approximate life expectancy | 240 000 HP |
| City | 12.9 litry |
| Route | 6.9 litry |
| Mixed | 9.1 litry |
Most often, owners of the A8 with this engine complain about increased oil consumption. The usual cause is debris from the catalytic converter getting stuck in the cylinders. Since there are no check valves for the oil channels in the cylinder head, the cold chains can rattle. Another culprit of timing chain noise here can be wear on the hydraulic tensioner. The water pump, fuel injection pump, as well as the exhaust system's bellows often have a low service life and frequently burn out.
| A8 D4 (4H) | 2010 - 2013 |
The 1.6-liter VW 1.6 BSE engine was produced in Germany or Hungary from 2005 to 2014 and installed in many popular models of the group, such as Golf, Passat, Touran, and Caddy. The BSE engine can be found under the hood of cars from Audi, Volkswagen, Seat, and Skoda. EA113-1.6 series: AEH AHL AKL ALZ ANA APF ARM AVU BFQ BGU BSF
The 2.0-liter petrol engine Audi 2.0 AAD was produced by the company from 1990 to 1993 and installed in the most popular models of that period with the indexes 80 and 100. This power unit was equipped with a temperamental KE-Motronic fuel injection system. The following engines belong to the EA827-2.0 series: 2E, AAE, ABF, ABK, ABT, ACE, ADY, and AGG.
The 3.0-liter turbocharged engine Audi CREC 3.0 TFSI has been produced at the company's facilities since 2014 and installed in popular models of the German company, such as A6, A7, and Q7 crossover. This engine is equipped with a combined fuel injection system and belongs to the EA837 EVO series. The EA837 line also includes engines: BDX, BDW, CAJA, CGWA, CGWB, and AUK.
The 3.0-liter turbocharged engine Audi CZSE 3.0 TFSI has been produced by the company since 2017 and is only installed in the main versions of the A8 sedan with D5 body or the Q8 crossover. This engine is part of a hybrid propulsion system with a separate 48-volt system. The EA839 series also includes the following engines: - CWGD, - DECA, and - DLZA.
The 1.3-liter Nissan QG13DE engine was produced in Japan from 1998 to 2012 and mainly installed in local models, as well as in cars intended for the market of Southeast Asian countries. This power unit is the smallest in the lineup and practically does not occur in our country. The QG family also includes the following engines: QG15DE, QG16DE, QG18DE, and QG18DD.
The 2.4-liter Subaru FA24D engine has been produced at the Japanese factory of the company since 2021 and is only installed in the second-generation sporty coupe BRZ or a similar model like the Toyota GR86. This naturally aspirated powertrain is characterized by the presence of a combined D-4S fuel injection system. The FA engine lineup also includes the following engines: - FA20D, - FA20F, and - FA24F.