Mishimoto Racing Thermostat for Audi S4/A4/A6

This Mishimoto Racing thermostat is a purpose-built replacement that regulates coolant flow and helps maintain optimal engine operating temperature for a wide range of Audi and select Volkswagen models. Engineered for reliable temperature control in S4, A4 and A6 platforms (including Quattro and Avant variants), the unit provides a direct-fit, serviceable solution for restoring proper warm-up characteristics and ensuring consistent performance in street and light-performance applications.

Vehicle Fitment:

• 1995–1995 Audi 90 Base
• 1993–1994 Audi 90 CS
• 1993–1994 Audi 90 S
• 1995–1995 Audi 90 Sport
• 1995–1995 Audi 90 Quattro Base
• 1993–1994 Audi 90 Quattro CS
• 1995–1995 Audi 90 Quattro Sport
• 1998–1998 Audi A4 Avant
• 1996–2000 Audi A4 Base
• 1998–2000 Audi A4 Quattro Avant
• 1996–2000 Audi A4 Quattro Base
• 1995–1997 Audi A6 Avant
• 1995–2001 Audi A6 Base
• 1995–2004 Audi A6 Quattro Avant
• 1995–2004 Audi A6 Quattro Base
• 1997–1999 Audi A8 Base
• 1997–1999 Audi A8 Quattro Base
• 2001–2005 Audi Allroad Quattro Base
• 1994–1998 Audi Cabriolet Base
• 2001–2002,2004–2006 Audi S4 Avant
• 2000–2002,2004–2006 Audi S4 Base
• 2004–2006 Audi S4 Cabriolet
• 2001–2003 Audi S8 Base
• 1990–1994 Audi V8 Quattro Base
• 2000–2000 Volkswagen Passat 4 Motion
• 1998–2001 Volkswagen Passat GLS
• 2001–2001 Volkswagen Passat GLS 4 Motion
• 1998–2001 Volkswagen Passat GLX
• 2001–2001 Volkswagen Passat GLX 4 Motion