This wastegate actuator, with a 1-bar opening pressure, is designed for VAG 1.8T 20VT engines with a K03 or K04-001 turbocharger. The actuator regulates turbocharger pressure by opening the wastegate when the set pressure is reached. Thanks to its higher opening pressure, this actuator is suitable for engines with tuning or higher turbocharger pressure.

Advantages

• Wastegate actuator with 1 bar opening pressure
• Suitable for K03 and K04-001 turbochargers
• Better control at higher turbo pressure
• Suitable for tuning applications
• Direct replacement of the original actuator

Technical specifications

• Type: wastegate actuator
• Opening pressure: 1 bar
• Maximum turbo pressure: approximately 2.2 bar
• Turbo compatibility: K03 / K04-001
• Mounting: bolt-on replacement

Compatibility

Volkswagen
• Volkswagen Golf 4 1.8 Turbo
• Volkswagen Bora 1.8 Turbo (1999–2008)
• Volkswagen Polo 9N3 1.8 Turbo

Audi
• Audi A3 8L 1.8 Turbo
• Audi TT 8N 1.8 Turbo

Seat
• Seat Ibiza 6K2 1.8 Turbo
• Seat Ibiza 6L 1.8 Turbo
• Seat Leon 1M 1.8 Turbo

NB

• Not suitable for K04 engine codes BAM and APY

Contents

• Wastegate actuator 1 bar

Frequently Asked Questions

What does a 1 bar actuator mean?
The wastegate starts to open at about 1 bar of turbo pressure.

Is this actuator suitable for tuned engines?
Yes, this actuator is often used in tuning setups with higher boost pressure.

Does this fit all 1.8T turbos?
No, this actuator is only suitable for K03 and K04-001 turbos.