Genuine 06M 121 692 AC Coolant Breather Pipe Vent Tube for Audi 3.0L

The Genuine 06M 121 692 AC Coolant Breather Pipe is an OEM-quality replacement coolant vent tube designed for Audi 3.0-liter engines. This pipe plays a critical role in the engine cooling system by routing coolant back to the overflow or recovery bottle, maintaining a properly sealed closed-loop cooling circuit and preventing air pockets that can lead to overheating.

Also commonly referred to as a breather tube, vent hose, vent tube, connector tube, coolant overflow hose, reservoir hose, or water feed tube, this part ensures coolant pressure is managed correctly throughout the system. As a Genuine OEM part, it is manufactured to the exact factory specifications for a precise, leak-free fit with no modification required.

Key Features:

• Genuine OEM Audi/Volkswagen part — factory-spec fit and finish
• Routes coolant to the overflow/recovery bottle in a closed-loop cooling system
• Prevents air ingestion and maintains proper coolant pressure
• Direct replacement — no cutting, splicing, or adapters needed
• Manufactured for 3.0-liter engines (2018–2025 model years)

Part Number: 06M 121 692 AC
Supersedes: 06M-121-692-AC, 6M121692AC