Mahle C32280 Engine Coolant Pipe O-Ring

Engine Coolant Pipe O-Ring for Audi and Volkswagen

The Mahle C32280 engine coolant pipe O-ring is a molded rubber sealing component for cooling system service. It is built to match the 32 mm x 5 mm application used across select Audi and Volkswagen models, helping maintain a secure seal at the coolant pipe connection.

Key Features

• Molded rubber O-ring material for coolant sealing applications
• 0.19 in thickness and 0.19 in cross section
• Engine coolant pipe O-ring for sealing service points in the cooling system
• Direct-fit style replacement for select Audi A4, A6, A8, S6, S8, Allroad Quattro, Q7, R8, S5, and Volkswagen Passat, Touareg, and Phaeton applications
• Mahle C32280 for OE-style cooling system maintenance

Detailed Description

Mahle C32280 is an engine coolant pipe O-ring made from molded rubber for use in cooling system sealing applications. This part is specified for 32 mm x 5 mm fitments and is listed across a wide range of Audi and Volkswagen vehicles, including Audi A4 Quattro, A6 Quattro, A8 Quattro, Q7, R8, S5, and Volkswagen Touareg and Passat models. The Mahle C32280 part number is also referenced in OE-style replacement catalogs for the same application.

Mahle gaskets and sealing products are used by OEMs and technicians worldwide, and this coolant pipe O-ring follows that sealing-focused product approach. If you are servicing a leaking coolant pipe connection on an Audi A6 Quattro or Volkswagen Touareg, this part number helps identify the correct molded rubber seal for the application.

This part cross-references FEL-PRO 35327 for the same application.

What It Helps Fix

• Coolant seepage at the pipe-to-housing sealing point
• Loss of seal integrity from a flattened or hardened O-ring
• Visible coolant residue around the coolant pipe connection
• Cooling system leaks during routine maintenance or repair
• Fitment issues when replacing an aged OE-style coolant pipe seal

Installation Notes and Tips

Confirm the 32 mm x 5 mm size before installation and inspect the sealing surface for debris, corrosion, or damage. Clean the groove and mating surfaces thoroughly, then lubricate the molded rubber O-ring with the correct coolant or assembly lubricant before seating it. Verify the connection is fully aligned so the seal is not pinched during assembly.

Quality Assurance

Mahle sealing products are engineered for OEM and technician use, with a focus on consistent sealing performance in automotive cooling systems. Part number C32280 is built as a molded rubber coolant pipe O-ring for the listed Audi and Volkswagen applications.