BMW Coolant Tank and Oil Cooler Hose Assembly, X3/X4 (2011–2018)

This BMW-branded Coolant Tank and Oil Cooler Hose Assembly replaces the corresponding factory component on BMW X3/X4 from 2011–2018. It removes heat from the lubricating oil circuit. Applications include X3 and X4. BMW’s U.S. warranty coverage for Original BMW Parts is two years with unlimited mileage.

Technical Details

• Manufacturer part number: 17-12-7-646-152
• Component: Coolant Tank and Oil Cooler Hose Assembly
• Manufacturer: BMW
• Vehicle applications: BMW X3/X4
• Primary function: removes heat from the lubricating oil circuit
• Production range: 2011–2018
• Listed models: X3 and X4
• Listed submodels: xDrive35i and M40i

Fitment & Compatibility

Confirm the application in the table below, including production year, model designation, and submodel notes. 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.