BMW 5/6/7 Series Expansion Tank Heating Line (2016–2019)

BMW lists this Expansion Tank Heating Line for BMW 5/6/7 Series from 2016–2019 as a genuine factory replacement. It stores expanding coolant and provides the system’s fill and recovery point. Applications include 540i, 640i, and 740i. BMW identifies Original BMW Parts as the parts designed, tested, and manufactured by BMW for its vehicles.

Technical Details

• Manufacturer part number: 17-12-8-602-642
• Manufacturer: BMW
• Component: Expansion Tank Heating Line
• Primary function: stores expanding coolant and provides the system’s fill and recovery point
• Vehicle applications: BMW 5/6/7 Series
• Production range: 2016–2019
• Listed models: 540i, 640i, and 740i

Fitment & Compatibility

The table below lists the supported years and models; compare it with the vehicle before ordering. Match the engine, hose or connection layout, cooling-system equipment, and production date. A VIN check can resolve production splits or equipment differences. PMB Performance brings more than 20 years of European-parts experience to that review.