From 2001 to 2006, the Volkswagen AUQ 1.8T 1.8-liter turbo engine was assembled at the factory and fitted to the Golf 4, Bora, Octavia, and Audi A3 models with transverse engines. With 180 horsepower and 235 Nm, this power unit was marginally more potent than its series counterparts.
AGU, AWT, AMB, AWM, AUQ, and AWC are all part of the EA113-1.8T series.
Specifications
| Production years | 2001-2006 |
| Displacement, cc | 1781 |
| Fuel system | injector |
| Power output, hp | 180 |
| Torque output, Nm | 235 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 86.4 |
| Compression ratio | 9.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain & belt |
| Phase regulator | yes |
| Turbocharging | KKK K03s |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.5 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for VW Golf 2002) — city — highway — combined |
10.9 6.3 8.0 |
| Engine lifespan, km | ~300 000 |
The engine was installed on:
- Audi A3 1 (8L) in 2001 – 2003;
- Audi TT 1 (8N) in 2001 – 2005;
- Seat Leon 1 (1M) in 2001 – 2005;
- Seat Toledo 2 (1M) in 2001 – 2004;
- Skoda Octavia 1 (1U) in 2001 – 2006;
- Volkswagen Bora 1 (1J) in 2002 – 2005;
- Volkswagen Golf 4 (1J) in 2001 – 2003.
Disadvantages of the VW AUQ engine
The continuous air leakage through the crankcase ventilation is the primary cause of the engine’s unstable operation;
Many of the crankcase ventilation system’s branch pipes just crack;
A hydraulic chain tensioner, which functions as a phase regulator in this situation, is a low resource;
Antifreeze leaks from the cooling system’s tee and coolant temperature sensor malfunctions are common;
Switch-equipped ignition coils break down very quickly.