The 2.5-liter VW AET or T4 2.5 gasoline engine was produced by the concern from 1996 to 2003 and was installed on the fourth generation Transporter, Caravelle, Multivan and California after restyling. There are also updated modifications of this power unit under the APL and AVT indices.
Gasoline engines of the EA153 series: AAF, AET.
Specifications
| Production years | 1996-2003 |
| Displacement, cc | 2461 |
| Fuel system | distributed injection |
| Power output, hp | 115 |
| Torque output, Nm | 200 |
| Cylinder block | cast iron R5 |
| Block head | aluminum 10v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 10.0 |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | petrol |
| Euro standards | EURO 2/3 |
| Fuel consumption, L/100 km (for VW Transporter 1998) — city — highway — combined |
17.2 9.7 12.6 |
| Engine lifespan, km | ~400 000 |
| Weight, kg | 180 |
The engine was installed on:
- Volkswagen Transporter T4 (7D) in 1996 – 2003.
Disadvantages of the VW AET engine
- This is a very reliable unit and owners often only complain about high consumption.
- Instead of the capricious Digifant, there is Simos and there are no problems with gas equipment.
- There are many complaints on specialized forums about the loss of a spark and other failures in the ignition system.
- The cause of engine malfunctions is often a broken wiring of one of the sensors.
- The timing belt and auxiliary units can also fly off, but the valves do not bend here.
