The 2.3-liter Volkswagen AQN 2.3 VR5 gasoline engine was produced from 2000 to 2005 and was installed on the Golf 4 and other platform models with a transverse engine. A similar power unit, which was installed longitudinally on the Passat B5, has the AZX index.
The EA395 series includes: AGZ, AQN, AZX.
Specifications
| Production years | 2000-2005 |
| Displacement, cc | 2324 |
| Fuel system | injector |
| Power output, hp | 170 |
| Torque output, Nm | 220 |
| Cylinder block | cast iron VR5 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 90.2 |
| Compression ratio | 10.8 |
| 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 Golf 2001) — city — highway — combined |
13.2 7.2 9.3 |
| Engine lifespan, km | ~280 000 |
The engine was installed on:
- Volkswagen Beetle 1 (9C) in 2000 – 2005;
- Volkswagen Bora 1 (1J) in 2000 – 2002;
- Volkswagen Golf 4 (1J) in 2000 – 2003;
- Seat Toledo 2 (1M) in 2001 – 2003.
Disadvantages of the VW AQN engine
- You need to understand that this is a rare power engine and there are problems with its service;
- The engine is famous for its high fuel consumption, and for high mileage also lubrication;
- The timing chain does not have a very large resource, and its replacement is complicated and expensive;
- Very often there are oil leaks from under the valve cover, you have to change it;
- The reasons for floating engine speeds are air leaks or throttle contamination.