The most well-known family of Transporter T4 minibuses was equipped with a 2.5-liter Volkswagen ACV 2.5 TDI diesel engine from 1995 to 2003. This 5-cylinder diesel was the most popular in the series and had medium power.
AAB, AJT, ACV, AXG, BAC, BPE, AXD, AXE, AJS, and AYH are also included in the EA153 series.
Specifications
| Production years | 1995-2003 |
| Displacement, cc | 2460 |
| Fuel system | direct injection |
| Power output, hp | 102 |
| Torque output, Nm | 250 |
| Cylinder block | cast iron R5 |
| Block head | aluminum 10v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 19.5 |
| Features | SOHC, intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.5 |
| Fuel type | diesel |
| Euro standards | EURO 2/3 |
| Fuel consumption, L/100 km (for VW Transporter 1995) — city — highway — combined |
10.2 6.7 7.9 |
| Engine lifespan, km | ~500 000 |
The engine was installed on:
- Volkswagen Transporter T4 (7D) in 1995 – 2003.
Disadvantages of the VW ACV engine
High-pressure fuel pumps and injectors are among the power supply system issues that are typically discussed in specialized forums.
Keep an eye on the cooling system because the aluminum cylinder head cannot withstand overheating;
Additionally, owners frequently complain about mass air flow sensor malfunctions or a knocking vacuum pump;
You will have to undergo an expensive procedure to replace belts and rollers once every 100,000 kilometers;
The turbine frequently starts to drive oil on runs longer than 200–250 thousand kilometers.