Borg Warner Turbocharger - Audi / K04 / MK1 / TT

The Borg Warner 53049880020 turbocharger is a direct replacement for the factory turbo on early 2000s Audi TT Quattro models (8N). This unit restores boost pressure and engine performance on turbocharged 1.8L four-cylinder engines that have experienced turbo degradation, shaft wear, or compressor blade damage. Borg Warner is an OEM supplier to Audi and other major manufacturers, ensuring this turbo meets original equipment specifications for fitment, durability, and performance.

Symptoms of a Failing Turbocharger

• Loss of boost pressure and reduced engine power, especially under acceleration
• Excessive exhaust smoke (blue or grey) on startup or under load
• Loud whining or grinding noise from the turbo housing
• Increased oil consumption and low oil levels between services
• Check engine light with turbo-related diagnostic codes (e.g., P0234)
• Sluggish throttle response and difficulty maintaining highway speeds

OEM Part # 

06A-145-704-M / 06A145704 M / 06A 145 704 M / 06A145704M

MFR # 53049880020