Rein CHR0724 Radiator Coolant Hose - Upper

OE-Style Upper Radiator Hose for Mercedes-Benz

The Rein CHR0724 radiator coolant hose is an OE-quality replacement for select Mercedes-Benz cooling systems. It is built to match the original hose shape, branch sizing, and thermoplastic quick-connect design for a direct service replacement on the upper hose position.

Compatible with 2006 Mercedes-Benz CLS500, upper, and 2003-2006 Mercedes-Benz E500, upper. This Rein radiator hose is engineered for a clean OE-style repair on European vehicles that require precise hose routing and connector fitment.

Key Features

• Direct replacement for the original upper radiator hose assembly
• Reduces installation time
• No cutting, refitting, or adjusting the hose
• Helps prevent leaks and repeat repairs from reused quick connectors and O-rings
• Resistant to heat, salt, road debris, oil, and other contaminants
• OE-matched size, shape, and branch layout

Detailed Description

Rein CHR0724 is an OE-quality radiator coolant hose designed for Mercedes-Benz applications that require the same routing and connector style as the factory part. The hose mirrors the original assembly, including the thermoplastic quick-connect fittings, so it installs as a direct replacement rather than a modified universal hose. This makes it a practical choice for Mercedes-Benz CLS500 upper radiator hose replacement and Mercedes-Benz E500 upper coolant hose service.

This part cross-references Genuine 2115015682 for the same application. Use Rein CHR0724 when you need a radiator hose that follows the OE design and supports a precise cooling-system repair.

Common Problems This Part Can Address

• Coolant leaks at the upper radiator hose connection
• Cracked, swollen, or heat-aged hose material
• Damaged or worn quick-connect fittings
• Repeat leaks caused by reusing old O-rings
• Cooling-system service delays from hose modification or trimming

Installation Notes and Tips

Verify the vehicle application and upper hose routing before installation. Because this hose is application-specific, it is designed to replace the OE hose assembly without cutting or refitting. Inspect mating surfaces, quick connectors, and sealing rings during service, and replace any worn components before filling and bleeding the cooling system.

Quality Assurance

Rein OE-quality radiator hoses are built for European vehicle applications and follow the original hose design closely, from branch geometry to connector style. Part number CHR0724 is backed by a 24-month or 24,000-mile warranty.