Audi AFB engine
Content
The 2.5-liter Audi AFB 2.5 TDI diesel engine was assembled by the company from 1997 to 1999 and installed on such popular models as the A4 B5, A6 C5, A8 D2 and Volkswagen Passat B5. After upgrading to more modern EURO 3 economy standards, the diesel engine changed its index to AKN.
The EA330 line also includes combustion engines: AKE, AKN, AYM, BAU, BDG and BDH.
Specifications of the Audi AFB 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 2 |
Approximate resource | 250 000 km |
Fuel consumption Audi 2.5 AFB
Using the example of a 6 Audi A5 C1998 with manual transmission:
City | 9.9 liters |
Track | 5.3 liters |
Mixed | 7.0 liters |
Which cars were equipped with the AFB 2.5 l engine
A4 B5(8D) | 1997 – 1999 |
A6 C5 (4B) | 1997 – 1999 |
A8 D2 (4D) | 1997 – 1999 |
Passat B5 (3B) | 1998 – 1999 |
Disadvantages, breakdowns and problems of AFB
The most famous problem is the rapid wear of the camshaft cams and rockers.
In second place there are failures in the operation of the Bosch VP44 electronically controlled high-pressure fuel pump
The crankcase ventilation filter clogs quickly and needs to be cleaned constantly
The outdated film-type MAF is distinguished by low reliability in the engine
The motor is prone to oil leaks at the joints of the block with the sump and from under the valve cover