VW AKN engine
Content
The 2.5-liter Volkswagen AKN 2.5 TDI diesel engine was produced from 1999 to 2003 and was installed on our popular Passat B5, as well as Audi A4 B5, A6 C5 and A8 D2 models. This power unit is essentially a version of the well-known AFB motor updated to EURO 3.
The EA330 line also includes combustion engines: AFB, AKE, AYM, BAU, BDG and BDH.
Specifications of the VW AKN 2.5 TDI engine
| Exact volume | 2496 cm³ |
| Supply system | direct injection |
| Internal combustion engine power | 150 hp |
| Torque | 310 Nm |
| Cylinder block | cast iron V6 |
| Block head | aluminum 24v |
| Bore | 78.3 mm |
| Piston stroke | 86.4 mm |
| Compression ratio | 19.5 |
| Features of the internal combustion engine | 2 x DOHC |
| Hydraulic compensators | Yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | VGT |
| What kind of oil to pour | 6.0 liters 5W-30 |
| fuel type | diesel |
| Environmental class | EURO 3 |
| Approximate resource | 260 000 km |
Fuel consumption Volkswagen 2.5 AKN
On the example of a 2000 Volkswagen Passat with a manual transmission:
| City | 9.8 liters |
| Track | 5.2 liters |
| Mixed | 6.8 liters |
Which cars were equipped with the AKN 2.5 l engine
| A4 B5(8D) | 1999 – 2001 |
| A6 C5 (4B) | 1999 – 2001 |
| A8 D2 (4D) | 1999 – 2000 |
| Passat B5 (3B) | 1999 – 2003 |
Shortcomings, breakdowns and problems of AKN
Most of the complaints are related to the rapid wear of the camshaft cams or rockers.
Many problems are caused by frequent failures of the Bosch VP44 electronically controlled high-pressure fuel pump
This motor is also extremely prone to oil leaks at the joints and from under the valve cover.
On a run of more than 150 km, the mechanism for changing the geometry of the turbine may wedge
The weak points of the internal combustion engine also include the viscous coupling bearing and pressure reducing valves.
