The Kayser 3.023.348 Diverter Valve is the upgraded factory valve from the Mk1 Audi TT 225HP (Audi part #06A 145 710N). This valve features an upgraded internal diaphragm which is more heat resistant and stiffer than other OEM diverter valves. For vehicles with an ECU upgrade an upgraded Diverter Valve is a must have. This valve will give 3-5 years of trouble free performance, even on engines modified up to stage 3.

Kayser 3.023.348 Diverter Valve Vehicle Fitment:

• 1999-2005 Audi A4 1.8T  _________________________  1999 Audi A4 1.8T  2000 Audi A4 1.8T  2001 Audi A4 1.8T  2002 Audi A4 1.8T  2003 Audi A4 1.8T  2004 Audi A4 1.8T  2005 Audi A4 1.8T 
• 1999-2004 Audi A6 2.7T  _________________________  1999 Audi A6 2.7T  2000 Audi A6 2.7T  2001 Audi A6 2.7T  2002 Audi A6 2.7T  2003 Audi A6 2.7T  2004 Audi A6 2.7T 
• 2001-2004 Audi allroad 2.7T  _________________________  2001 Audi allroad 2.7T  2002 Audi allroad 2.7T  2003 Audi allroad 2.7T  2004 Audi allroad 2.7T 
• 1999-2001.5 Audi S4  _________________________  1999 Audi S4  2000 Audi S4  2001 Audi S4  2001.5 Audi S4 
• 1999-2006 Audi TT 1.8T  _________________________  1999 Audi TT 1.8T  2000 Audi TT 1.8T  2001 Audi TT 1.8T  2002 Audi TT 1.8T  2003 Audi TT 1.8T  2004 Audi TT 1.8T  2005 Audi TT 1.8T  2005 Audi TT 1.8T 
• 1999-2005 VW Beetle 1.8T  _________________________  1999 VW Beetle 1.8T  2000 VW Beetle 1.8T  2001 VW Beetle 1.8T  2002 VW Beetle 1.8T  2003 VW Beetle 1.8T  2004 VW Beetle 1.8T  2005 VW Beetle 1.8T  2005 VW Beetle 1.8T 
• 1999-2005 VW GTI 1.8T  _________________________  1999 VW GTI 1.8T  2000 VW GTI 1.8T  2001 VW GTI 1.8T  2002 VW GTI 1.8T  2003 VW GTI 1.8T  2004 VW GTI 1.8T  2005 VW GTI 1.8T  2005 VW GTI 1.8T 
• 1999-2005 VW Jetta 1.8T  _________________________  1999 VW Jetta 1.8T  2000 VW Jetta 1.8T  2001 VW Jetta 1.8T  2002 VW Jetta 1.8T  2003 VW Jetta 1.8T  2004 VW Jetta 1.8T  2005 VW Jetta 1.8T  2005 VW Jetta 1.8T 
• 1999-2005 VW Passat 1.8T  _________________________  1999 VW Passat 1.8T  2000 VW Passat 1.8T  2001 VW Passat 1.8T  2002 VW Passat 1.8T  2003 VW Passat 1.8T  2004 VW Passat 1.8T  2005 VW Passat 1.8T  2005 VW Passat 1.8T 

Kayser 3.023.348 Diverter Valve Construction:
The Kayser 3.023.348 valve has a plastic housing with a spring loaded internal diaphragm operated by a pressure differential between vacuum and boost pressure.

Advantages of a diaphragm type valve:

• Faster response
• Zero maintenance

Kayser 3.023.348 Diverter Valve Install:
Installation of Diverter Valve(s) typically takes about an hour. Basic hand tools are necessary for installation, a flexible shaft nut-driver, pick, and crimp clamp pliers are the preferred tools. Please observe all safety precautions and follow proper installation guidelines while working on your vehicle.