From 2001 to 2005, Volkswagen produced the 1.6-liter direct-injection BAD engine, which was used in the Audi A2, the Bora sedan, and the fourth generation Golf. This power unit was different from others because it used a timing belt drive rather than a chain.

ARR, BKG, BAD, BAG, and BLF are all part of the EA111-FSI series.
Specifications
| Production years | 2001-2005 |
| Displacement, cc | 1598 |
| Fuel system | direct injection |
| Power output, hp | 110 |
| Torque output, Nm | 155 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 76.5 |
| Piston stroke, mm | 86.9 |
| Compression ratio | 12.0 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | on the intake shaft |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.6 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for VW Bora 2002) — city — highway — combined |
8.9 5.2 6.2 |
| Engine lifespan, km | ~220 000 |
The engine was installed on:
- Audi A2 1 (8Z) in 2002 – 2005;
- Volkswagen Bora 1 (1J) in 2001 – 2005;
- Volkswagen Golf 4 (1J) in 2001 – 2003.
Disadvantages of the VW BAD engine
An intricate intake system with numerous sensors frequently malfunctions.
In addition to frequently breaking down, the motor needs expert maintenance.
Soot quickly grows over intake, throttle, and EGR valves.
Phase regulators and ignition coils frequently fail even before 100,000 kilometers.
Oil burning caused by rings typically starts at 100–120 thousand kilometers.
