The 4.2-liter Audi BAR or Q7 4.2 FSI engine was produced by the company from 2005 to 2010 and was installed on such well-known crossovers as the Audi Q7 and the first generation Volkswagen Touareg. On the second generation of the Touareg, an updated version of this engine with the CGNA index is found.
3.7-4.2 V8 EA824 family: AEW, ABZ, BFL, BFM, AXQ, BVJ, CDRA, BAR.
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 |
| Weight, kg | 198 |
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 famous problem of the motor is the oil burner due to scuffing in the cylinders;
- Also, a lot of problems for owners are caused by a capricious direct injection system;
- Timing chains are not the biggest resource, and their replacement is difficult and expensive;
- Plastic intake manifold prone to cracking and leaking;
- Ignition coils often fail and leaks occur at the junction of the engine and gearbox.
Frequently asked questions about the Audi BAR
How much power does the Audi BAR make?
The Audi BAR develops 350 hp and 440 Nm of torque.
How much oil does the Audi BAR take and which one?
Engine oil capacity: 9.2 liters. Recommended oil: 5W-30.
Does the Audi BAR have a timing belt or chain?
The Audi BAR uses a timing chain.
Is the Audi BAR turbocharged?
No, the Audi BAR is naturally aspirated.
Does the Audi BAR need valve clearance adjustment?
No, the Audi BAR has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi BAR last?
The typical lifespan of the Audi BAR is ~250 000 km with proper maintenance.
What is the fuel consumption of the Audi BAR?
Audi Q7 2007: city 19.1, highway 9.9, combined 13.3 L/100 km.
What cars was the Audi BAR installed on?
Audi Q7 1 (4L) in 2005 - 2010; Volkswagen Touareg 1 (7L) in 2006 - 2009.
What are the common problems of the Audi BAR?
The most famous problem of the motor is the oil burner due to scuffing in the cylinders. Also, a lot of problems for owners are caused by a capricious direct injection system. All known problems.
