The company assembled the 3.2-liter 24-valve Audi AUK 3.2 FSI engine from 2004 to 2010 and installed it on such popular models of the German concern as the A4 B7, A6 C6 or A8 D3. This power unit has several analogues at once with other BKH, BPK and BYU indices.
The EA837 series includes: BDW, AUK, BDX, CAJA, CGWA, CGWB, CREC.
Specifications
| Production years | 2004-2010 |
| Displacement, cc | 3123 |
| Fuel system | direct injection |
| Power output, hp | 256 |
| Torque output, Nm | 330 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| 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 | 6.5 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Audi A6 2005) — city — highway — combined |
15.7 9.7 10.9 |
| Engine lifespan, km | ~260 000 |
The engine was installed on:
- Audi A4 B7 (8E) in 2004 – 2009;
- Audi A6 C6 (4F) in 2004 – 2008;
- Audi A8 D3 (4E) in 2005 – 2010.
Disadvantages of the Audi AUK engine
- The most widespread problem of units of this series are seizures in the cylinders.
- The pistons here are prone to the occurrence of rings and oil burns, they are usually changed to forged.
- Also here, timing chains are very often stretched and their tensioners fail.
- Not famous for reliability and a complex intake system with two sets of dampers.
- Intake valves quickly overgrow with soot and compression drops in the engine cylinders.
