VW-Audi Expansion Tank Cap Metzger 4M0121321Q

The VW-Audi Expansion Tank Cap Metzger 4M0121321Q, manufactured by Metzger (part number 2141053-M), is a high-quality aftermarket solution engineered to meet OE standards for a precise fit and reliable sealing performance. This cap is designed specifically for a wide range of Audi models, including select years and trims of the Audi A4 allroad, A4 Quattro, A5 Quattro, A5 Sportback, A6 allroad, A6 Quattro, A7 Sportback, A8 Quattro, Q5, Q7, Q8, RS5, RS5 Sportback, RS6 Avant, and RS7 Sportback. It matches the OE part number 4M0121321Q, ensuring it meets all functional requirements for its application.

Key Features:

• Manufactured by Metzger: Trusted aftermarket quality.
• Direct replacement for OE part number 4M0121321Q.
• Verified fitment across a wide selection of late-model Audi vehicles (see compatibility for details).
• Designed for precise pressure control and secure coolant system sealing.

For Audi owners seeking dependable performance, the Metzger 4M0121321Q expansion tank cap offers assured compatibility and robust quality in critical cooling system applications.