Spectra TB1085 Fuel Injection Throttle Body

The Spectra TB1085 fuel injection throttle body assembly is built for electronic throttle control systems and engineered to meet OE requirements. It is a direct-fit replacement for select Volkswagen Passat and Audi A4 applications, including Audi A4 Quattro, with OE-level performance targets for drivability and throttle response.

• Electronic throttle body assembly for fuel injection systems
• Engineered and tested to meet original equipment requirements
• Direct replacement for select 1997-2000 Volkswagen and Audi applications
• Cross-reference part numbers include Standard Ignition S20143
• Part number TB1085 for accurate catalog matching

Vehicle Fitment

Compatible with 1998-2000 Volkswagen Passat, N/A. Compatible with 1997-1999 Audi A4, N/A. Compatible with 1997-1999 Audi A4 Quattro, N/A.

This part cross-references Standard Ignition (e.g., S20143) for the same application.

What It Helps Fix

• Throttle response problems caused by a worn electronic throttle body
• Idle instability related to throttle plate or actuator wear
• Driveability issues from inconsistent air metering at the throttle body
• Check engine light concerns tied to throttle control faults
• Reduced performance in affected Volkswagen Passat and Audi A4 applications

Installation Notes

Verify connector style, throttle control calibration, and OE part number before installation. After replacement, follow the vehicle-specific relearn or adaptation procedure if required by the engine management system. Confirm fitment against the exact model year and engine configuration listed for your vehicle.

Quality Assurance

Spectra Premium designs and tests this throttle body assembly to meet OE requirements and to match the performance of the original component it replaces. TB1085 is built as an OE-style replacement for select Volkswagen Passat and Audi A4 throttle body applications.