BMW Coolant Expansion Tank, 5/6/7/8 Series (2016–2024)

BMW designed this Original BMW Coolant Expansion Tank for the engine cooling system on BMW 5/6/7/8 Series from 2016–2024. It stores expanding coolant and provides the system’s fill and recovery point. The supported range includes 530e, 530i, 540i, 640i, 740e, and 740i, plus additional listed variants. As an Original BMW component, it is produced within BMW’s own vehicle-specific design and testing program.

Technical Details

• Manufacturer: BMW
• Component: Coolant Expansion Tank
• Manufacturer part number: 17-13-9-846-642
• Production range: 2016–2024
• Vehicle applications: BMW 5/6/7/8 Series
• Primary function: stores expanding coolant and provides the system’s fill and recovery point
• Listed models: 530e, 530i, 540i, 640i, 740e, and 740i, plus additional listed variants

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. Send PMB Performance your VIN for fitment help. Our team has more than 20 years of experience working through European vehicle applications.