Rein TCH0309 Turbocharger Coolant Line - Supply

OE Turbo Cooling Hose for European Applications

The Rein TCH0309 turbocharger coolant line is an OE-quality replacement for European vehicles that need a direct-fit turbo cooling hose. Built to match the original hose shape, branch layout, and quick-connect design, it supports clean service work on Audi A4, Audi A4 Quattro, and Volkswagen Passat applications.

For 1997-2000 Audi A4 supply-side service and 1998-2000 Volkswagen Passat supply-side service, this Rein turbo cooling hose helps restore the factory-style coolant routing without modifying the hose during installation.

Key Features

• Direct replacement for the original turbocharger coolant hose assembly
• OE-style size, shape, and branch configuration for accurate fitment
• Thermoplastic quick-connect fittings match the original design
• Reduces installation time by eliminating cutting, refitting, and adjustment
• Helps prevent leaks and repeat repairs caused by reused quick connectors and O-rings
• Resists heat, salt, road debris, oil, and other contaminants

Detailed Description

Rein TCH0309 is a turbocharger coolant line engineered as an OE-quality replacement for European vehicles. It is designed to duplicate the original hose assembly, including the branch geometry and quick-connect ends, so the replacement follows the factory routing and connection style. This makes it a practical choice for technicians servicing turbo cooling systems on Audi A4, Audi A4 Quattro, and Volkswagen Passat models.

This part cross-references OE-style application 058121497B for the same application. When replacing a worn or damaged turbo cooling hose, the TCH0309 supports a cleaner repair by matching the original layout instead of requiring field modifications.

What It Helps Address

• Coolant seepage at aged hose connections
• Leaks from brittle or damaged quick-connect fittings
• Service delays caused by hoses that do not match OE routing
• Repeat repairs from reusing worn O-rings or connectors
• Heat- and contamination-related hose deterioration

Installation Notes and Tips

Verify vehicle application before installation. This hose is application-specific and should be matched to the correct turbo cooling system layout. Inspect mating surfaces, quick connectors, and O-rings during service, and replace any worn sealing components as needed to maintain a proper seal. Confirm the hose is routed exactly as the original part on the vehicle.

Quality Assurance

Rein Automotive OE-quality turbo cooling hoses are built to follow original manufacturer specifications for European vehicle applications. The TCH0309 is made as a direct replacement for the factory hose assembly, with OE-style construction and connection points for consistent service results.