Cardone 2N-503 Turbocharger

Cardone 2N-503 Turbocharger Overview

The Cardone 2N-503 turbocharger is a direct-replacement, 100% new unit built for vehicles that need restored boost response, steady power delivery, and proper fuel efficiency. It is engineered for O.E. fit and performance on select Audi A4, Audi A4 Quattro, and Volkswagen Passat applications.

Cardone Turbocharger products are built as brand-specific replacement components for drivers who want a new turbocharger assembly rather than a remanufactured unit. The 2N-503 follows that approach with application-specific fitment and the hardware needed for a cleaner installation process.

Key Features

• 100% new turbocharger construction
• Direct replacement for select Audi and Volkswagen applications
• Journal bearing design
• Oil and coolant cooled turbocharger
• Wastegate actuator included
• Meets or exceeds O.E. performance targets
• Includes pre-lube syringe for installation protection
• Includes gaskets and mounting-related service components listed in the package contents

Detailed Description

This Cardone turbocharger is designed for drivers searching for a replacement turbocharger for 1997-2000 Audi A4 Quattro, 1997-1999 Audi A4, and 1998-1999 Volkswagen Passat models with the factory standard turbo. The 2N-503 uses a journal bearing layout and oil-and-coolant cooling to match the demands of factory turbo systems while supporting consistent operation under normal driving conditions. If you are replacing a worn turbo on an Audi A4 Quattro or Volkswagen Passat, this part number provides a direct-fit solution built around the original application.

This part cross-references Audi and Volkswagen OE numbers 058145703EX and 058145703LX for the same application.

What It Helps Address

• Loss of boost pressure or slow turbo spool
• Excessive smoke caused by turbo wear or seal failure
• Noisy turbo operation from bearing damage
• Oil contamination issues tied to a failing turbocharger
• Reduced engine performance in factory turbo applications

Installation Notes and Tips

• Fits 1997-2000 Audi A4 Quattro, N/A; with Factory Standard Turbo.
• Fits 1997-1999 Audi A4, N/A; with Factory Standard Turbo.
• Fits 1998-1999 Volkswagen Passat, N/A.
• Engine oil and filter must be changed during turbo replacement.
• Follow the installation guide included in the box.
• Use the supplied pre-lube syringe before startup to protect the turbocharger during initial installation.
• Inspect the air intake and exhaust system for contamination before installing the replacement unit.

Quality Assurance

Cardone states that its 100% new turbochargers are designed and tested to deliver O.E. fit and performance. The manufacturer also notes that these turbochargers are engineered to comply with federal regulations. Proper maintenance is critical: old or contaminated oil can cause turbo failure, and shutting down a hot turbo without fresh oil flow can lead to oil coking.