Only the fifth generation Passat was equipped with the 2.3-liter, 20-valve Volkswagen AZX 2.3 VR5 engine, which was manufactured between 2000 and 2005 in a redesigned version. The AQN index is a comparable unit for a transverse arrangement beneath the hood.
AGZ, AQN, and AZX are part of the EA395 series.
Specifications
| Production years | 2000-2005 |
| Displacement, cc | 2324 |
| Fuel system | injector |
| Power output, hp | 170 |
| Torque output, Nm | 225 |
| Cylinder block | cast iron VR5 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 90.2 |
| Compression ratio | 10.75 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | 2 chains |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.6 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for VW Passat 2002) — city — highway — combined |
13.7 7.6 9.5 |
| Engine lifespan, km | ~275 000 |
The engine was installed on:
- Volkswagen Passat B5 (3B) in 2001 – 2005.
Disadvantages of the VW AZX engine
The engine is uncommon, structurally intricate, and has few repair experts;
This series of units is renowned for its high fuel consumption and lubrication over time;
The most common issues are caused by numerous sensors and crankcase ventilation;
The frequent failure of the V-ribbed belt or viscous coupling comes in second;
The timing chain resource is less than 200,000 kilometers, and the motor must be removed in order to replace it.