Universal Air HT400022C HVAC Heater Core

Heater Core Aluminum for Audi and Volkswagen

Universal Air HT400022C is an aluminum HVAC heater core for select Audi and Volkswagen applications. It is built for vehicles with automatic or manual A/C controls where listed, including Audi A4, A4 Quattro, S4, RS4, Cabriolet, 80, 80 Quattro, 90, 90 Quattro, Coupe Quattro, and Volkswagen Passat and EuroVan coverage.

Key Features

• Aluminum heater core construction
• Direct replacement HVAC heater core for listed applications
• Fits select Audi A4, A4 Quattro, S4, RS4, and related models
• Fits select Volkswagen Passat and EuroVan applications
• Part number HT400022C for ordering and fitment verification

Detailed Description

Universal Air HT400022C is a heater core aluminum replacement for HVAC systems in select Audi and Volkswagen vehicles. This part number HT400022C covers a broad range of fitments, including 1996-2001 Audi A4, 1998-2001 Audi A4 Quattro, 2000-2002 Audi S4, 2002 Audi RS4, 1994-1998 Audi Cabriolet, 1988-1992 Audi 80 and 80 Quattro, 1988-1991 Audi 90 and 90 Quattro, 1990-1991 Audi Coupe Quattro, 1999-2005 Volkswagen Passat, and 2000-2004 Volkswagen EuroVan. Use the vehicle-specific notes to confirm automatic A/C or manual A/C control requirements before ordering.

What It Helps Address

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Interior fogging caused by heater core leakage
• Loss of heater performance in the HVAC system
• Replacement needs after heater core corrosion or blockage

Installation Notes and Tips

Verify the year, make, model, and HVAC control type against the fitment notes before installation. Confirm hose routing, core dimensions, and connector alignment with the removed unit. Because heater core replacement often requires access through the HVAC case, inspect related seals, hoses, and coolant condition during service.

Quality Assurance

Universal Air HT400022C is an aluminum heater core built for the listed Audi and Volkswagen applications. This part cross-references no additional part numbers in the provided data.