Vaico V20-1690 Engine Coolant Reservoir Hose

Engine Coolant Reservoir Hose for BMW

Vaico V20-1690 is an engine coolant reservoir hose that routes coolant from the expansion tank to the water pipe. Built to match the OE reference 17 12 7 541 146, it is a direct-fit cooling hose for select BMW 750i and 750Li applications.

• Cooling hose from expansion tank to water pipe
• OE reference: 17 12 7 541 146
• Length: 665 mm
• Height: 55 mm
• Width: 300 mm
• Weight: 0.190 kg
• Vaico part number V20-1690

Fitment and Application

Compatible with 2006-2008 BMW 750i and 2006-2008 BMW 750Li, reservoir overflow application. This Vaico V20-1690 hose is specified for the cooling circuit connection between the expansion tank and water pipe on these BMW models.

VAICO is the product line used by Vaico for OE-style replacement parts, with cataloged dimensions and OE-number matching to support accurate application selection. For buyers searching BMW 750i coolant reservoir hose, BMW 750Li expansion tank hose, or V20-1690 coolant hose replacement, this part aligns with the listed OE reference and fitment data.

What This Part Helps Address

• Cracked or leaking coolant reservoir hose
• Coolant seepage at the expansion tank connection
• Loss of coolant flow between the reservoir and water pipe
• Replacement needs after hose aging, hardening, or heat damage
• OE-number-based repair for BMW cooling system service

Installation Notes and Tips

Verify the OE number 17 12 7 541 146 and compare hose length and routing before installation. Inspect the expansion tank and water pipe connection points for wear, residue, or damage so the new hose seals correctly. Confirm the vehicle is a 2006-2008 BMW 750i or 750Li before ordering.

Quality Assurance

Vaico V20-1690 is cataloged as an OE-referenced replacement hose with published dimensions for application matching. This part cross-references Rein CHE0501 for the same application.