Rein CHE0164 Engine Coolant Hose - Expansion Tank To Upper Radiator Hose

OE-Style Coolant Hose for BMW V8 Cooling Systems

Rein CHE0164 is a black engine coolant hose built for BMW cooling system service on select 7 Series models. It replaces the expansion tank to upper radiator hose with the correct shape and thermoplastic quick connect fittings for a direct OE-style fit.

Compatible with 2002-2008 BMW 745i, 745Li, 750i, and 750Li applications, this hose is made to match the original hose routing and connection points. Part number CHE0164 is a practical replacement when the factory hose shows age, cracking, or connector wear.

Key Features

• Black engine coolant hose for BMW cooling system repair
• Direct replacement for the expansion tank to upper radiator hose
• Thermoplastic quick connect fittings for OE-style connection points
• Matches original hose size and branch shape
• Rein CHE0164 for select BMW 745i, 745Li, 750i, and 750Li models

Detailed Description

Rein Automotive coolant hoses are built to OE quality standards for European vehicles, with attention to the same dimensions and connector style used by the original hose assembly. CHE0164 is engineered for the BMW cooling circuit where the expansion tank connects to the upper radiator hose, helping restore proper hose routing and secure fitment. If you are sourcing a BMW 750i coolant hose or a BMW 745Li expansion tank to upper radiator hose replacement, CHE0164 provides the correct application-specific design.

This part cross-references BMW 17127508015 for the same application.

What This Hose Helps Address

• Cracked or brittle coolant hose material
• Leaking quick connect fittings at the hose ends
• Coolant seepage at the expansion tank connection
• Damaged or worn upper radiator hose routing
• Cooling system service on aging BMW 7 Series vehicles

Installation Notes and Tips

Verify the vehicle year, model, and hose routing before installation. Inspect the mating connectors, clamps, and nearby cooling components for wear or residue before reassembly. After installation, refill and bleed the cooling system according to BMW service procedures to confirm a secure seal and proper coolant circulation.

Quality Assurance

Rein Automotive positions this hose as an OE-quality replacement for European vehicles, with construction that follows the original hose assembly layout and connector style. Part number CHE0164 is built for direct replacement service on the listed BMW applications.