The 2.3-liter 20-valve Volkswagen AZX 2.3 VR5 engine was produced from 2000 to 2005 and was installed only on the fifth generation Passat and only in a restyled modification. A similar unit for a transverse arrangement under the hood is known under the AQN index.
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 rare, structurally complex and there are few specialists in its repair;
- Units of this series are known for high fuel consumption, and over time, lubrication;
- Numerous sensors and crankcase ventilation cause the most problems;
- In second place is the frequent failure of the viscous coupling or V-ribbed belt;
- The timing chain resource is less than 200,000 km, and the replacement is carried out only with the removal of the motor.
Frequently asked questions about the Volkswagen AZX
How much power does the Volkswagen AZX make?
The Volkswagen AZX develops 170 hp and 225 Nm of torque.
How much oil does the Volkswagen AZX take and which one?
Engine oil capacity: 4.6 liters. Recommended oil: 5W-30.
Does the Volkswagen AZX have a timing belt or chain?
Timing drive of the Volkswagen AZX: 2 chains.
Is the Volkswagen AZX turbocharged?
No, the Volkswagen AZX is naturally aspirated.
Does the Volkswagen AZX need valve clearance adjustment?
No, the Volkswagen AZX has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Volkswagen AZX last?
The typical lifespan of the Volkswagen AZX is ~275 000 km with proper maintenance.
What is the fuel consumption of the Volkswagen AZX?
VW Passat 2002: city 13.7, highway 7.6, combined 9.5 L/100 km.
What cars was the Volkswagen AZX installed on?
Volkswagen Passat B5 (3B) in 2001 - 2005.
What are the common problems of the Volkswagen AZX?
The engine is rare, structurally complex and there are few specialists in its repair. Units of this series are known for high fuel consumption, and over time, lubrication. All known problems.
