From 2005 to 2010, the company produced the 4.2-liter Audi BAR or Q7 4.2 FSI engine, which was mounted on popular crossovers like the Audi Q7 and the original Volkswagen Touareg. An updated version of this engine with the CGNA index can be found on the Touareg’s second generation.
The EA824 series includes: AEW, ABZ, BFL, BFM, AXQ, BVJ, CDRA, BAR, CRDB, CEUA.
Specifications
| Production years | 2005-2010 |
| Displacement, cc | 4163 |
| Fuel system | direct injection |
| Power output, hp | 350 |
| Torque output, Nm | 440 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 92.8 |
| Compression ratio | 12.5 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on all shafts |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 9.2 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Audi Q7 2007) — city — highway — combined |
19.1 9.9 13.3 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Audi Q7 1 (4L) in 2005 – 2010;
- Volkswagen Touareg 1 (7L) in 2006 – 2009.
Disadvantages of the Audi BAR engine
The most well-known issue with the motor is the oil burner because of cylinder scuffing; an unpredictable direct injection system also causes many issues for owners;
The replacement of timing chains is challenging and costly, and they are not the largest resource;
Plastic intake manifolds are prone to cracking and leaks; ignition coils frequently break and leaks happen where the engine and gearbox meet.