The 2.4-liter Audi BDW 2.4 MPI injection engine was assembled at the factory from 2004 to 2008 and installed only on the popular A6 model in the C6 body in a modification before restyling. This unit was the only engine in the line with distributed fuel injection.
EA837 family: BDW, AUK, BDX, CAJA, CGWA, CGWB, CREC.
Specifications
| Production years | 2004-2008 |
| Displacement, cc | 2393 |
| Fuel system | distributed injection |
| Power output, hp | 177 |
| Torque output, Nm | 230 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 77.4 |
| Compression ratio | 10.3 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on the intake shafts |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.5 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Audi A6 2006) — city — highway — combined |
14.3 7.1 9.7 |
| Engine lifespan, km | ~280 000 |
| Weight, kg | 165 |
The engine was installed on:
- Audi A6 C6 (4F) in 2004 – 2008.
Disadvantages of the Audi BDW engine
- The main complaints about this unit are somehow related to seizures in the cylinders.
- Another problem is the stretching of the timing chains and the breakdown of their tensioners.
- Phase regulators and ignition coils are not the most reliable.
- Often the dampers in the intake turn sour, and the entire manifold has to be changed.
- After 100,000 km, lubricant consumption often appears due to wear of rings and caps.
Frequently asked questions about the Audi BDW
How much power does the Audi BDW make?
The Audi BDW develops 177 hp and 230 Nm of torque.
How much oil does the Audi BDW take and which one?
Engine oil capacity: 6.5 liters. Recommended oil: 5W-30.
Does the Audi BDW have a timing belt or chain?
The Audi BDW uses a timing chain.
Is the Audi BDW turbocharged?
No, the Audi BDW is naturally aspirated.
Does the Audi BDW need valve clearance adjustment?
No, the Audi BDW has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi BDW last?
The typical lifespan of the Audi BDW is ~280 000 km with proper maintenance.
What is the fuel consumption of the Audi BDW?
Audi A6 2006: city 14.3, highway 7.1, combined 9.7 L/100 km.
What cars was the Audi BDW installed on?
Audi A6 C6 (4F) in 2004 - 2008.
What are the common problems of the Audi BDW?
The main complaints about this unit are somehow related to seizures in the cylinders. Another problem is the stretching of the timing chains and the breakdown of their tensioners. All known problems.
