Rein CHE0882 Engine Coolant Hose - Expansion Tank To Radiator

OE Coolant Hose for Audi Cooling Systems

Rein CHE0882 is an engine coolant hose built for European vehicle cooling systems that require an OE-style direct replacement. It is shaped to match the original hose routing and uses thermoplastic quick connect fittings where equipped, making it a precise service part for select Audi applications.

Compatible With 2017-2018 Audi A4, 2017-2018 Audi A4 allroad, 2017-2018 Audi A4 Quattro, 2018 Audi A5, 2018 Audi A5 Quattro, 2018 Audi A5 Sportback, 2018 Audi RS5, 2018 Audi S4, 2018 Audi S5, and 2018 Audi S5 Sportback applications listed below.

Key Features

• Rein CHE0882 engine coolant hose for OE-style replacement
• Black coolant hose finish
• Hose end 1 outside diameter: 17.63 mm
• Hose end 1 inside diameter: 11.43 mm
• Hose end 2 outside diameter: 24.77 mm
• Hose end 2 inside diameter: 3.35 mm
• Direct replacement design for select Audi cooling system layouts

Detailed Description

Rein CHE0882 is engineered as a direct-fit coolant hose for European vehicles, with dimensions and branch geometry that follow the original hose design. The hose is black and built to match OE routing requirements, including applications that run from the expansion tank to the radiator. This makes CHE0882 a practical replacement when servicing the cooling system on a 2017-2018 Audi A4 or 2018 Audi A5 family vehicle.

This part cross-references Audi OE number 8W0121081BK for the same application. Use Rein CHE0882 when you need a replacement hose that matches the original size and connection style on the listed Audi models.

Common Cooling System Issues

• Cracked or aged coolant hose material
• Coolant seepage at hose connections
• Improper hose fit after prior repair work
• Cooling system service on expansion tank to radiator routing
• Replacement of a damaged OE-style hose assembly

Installation Notes and Tips

Verify the vehicle build date before ordering, since several listed applications are limited to vehicles built to 6/26/17. Confirm hose routing, end diameters, and connection style against the original part before installation. Inspect adjoining clamps, fittings, and mating surfaces for wear or contamination so the new hose seals correctly.

• Fits 2017 Audi A4, N/A
• Fits 2017 Audi A4 allroad, N/A
• Fits 2017 Audi A4 Quattro, Expansion Tank To Radiator
• Fits 2018 Audi A4, N/A, To 6/26/17
• Fits 2018 Audi A4 allroad, N/A, To 6/26/17
• Fits 2018 Audi A4 Quattro, Expansion Tank To Radiator, To 6/26/17
• Fits 2018 Audi A5, Expansion Tank To Radiator, To 6/26/17
• Fits 2018 Audi A5 Quattro, N/A, To 6/26/17
• Fits 2018 Audi A5 Sportback, N/A, To 6/26/17
• Fits 2018 Audi RS5, N/A, To 6/26/17
• Fits 2018 Audi S4, N/A, To 6/26/17
• Fits 2018 Audi S5, N/A, To 6/26/17
• Fits 2018 Audi S5 Sportback, N/A, To 6/26/17

Quality Assurance

Rein Automotive positions this hose as an OE-quality replacement for European vehicles, with construction and fitment details modeled after the original hose assembly. CHE0882 is designed to meet the dimensional and connection requirements of the listed Audi applications.