From 1996 to 2000, the company produced the 1.9-liter VW AFN 1.9 TDI diesel engine, which was installed on the most popular models and is best known for the Passat B5. The presence of a turbine with variable geometry actually sets this type of diesel engine apart from the AHU unit.
1Z, AFN, AHF, AHU, ALH, AVG, AKU, and AEY are further models in the EA180 series.
Specifications
| Production years | 1996-2000 |
| Displacement, cc | 1896 |
| Fuel system | direct injection |
| Power output, hp | 110 |
| Torque output, Nm | 235 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 79.5 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 19.5 |
| Features | SOHC, intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | VGT |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | diesel |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for VW Passat 1997) — city — highway — combined |
7.2 4.5 5.5 |
| Engine lifespan, km | ~400 000 |
The engine was installed on:
- Audi A4 B5 (8D) in 1996 – 2000;
- Audi A6 C5 (4B) in 1997 – 1999;
- Seat Cordoba 1 (6K) in 1997 – 1999;
- Seat Ibiza 2 (6K) in 1997 – 1999;
- Seat Toledo 1 (1L) in 1996 – 1999;
- Volkswagen Golf 3 (1H) in 1996 – 1997;
- Volkswagen Passat B4 (3A) in 1996 – 1997; Passat B5 (3B) in 1996 – 1999;
- Volkswagen Polo 3 (6N) in 1998 – 1999;
- Volkswagen Sharan 1 (7M) in 1996 – 1999;
- Volkswagen Vento 1 (1H) in 1996 – 1998.
Disadvantages of the VW AFN engine
The issues listed below occur frequently, and this engine is incredibly dependable;
The valves’ saddles frequently make a gesture, which causes the compression to be lost;
The jammed geometry of the turbine and the EGR valve is typically the cause of traction failures;
Lubricant frequently starts to leak through the pallet when the lower flange of the crankcase ventilation tube bursts;
Because it can affect timing, the auxiliary belt breakthrough is extremely risky in this situation.