Coolant Expansion Tank 17138614293 | Direct Fit for 5 Series F10 F11 520i 528i | High - Temp Tolerant Plastic | Cooling System Care

Overheating motors start with coolant leaks you can't see - until warning lights flash and repair bills skyrocket. Imagine your vehicle running at ideal temperature year-round, with no sudden coolant loss or pressure drops. Our exact-fit expansion tank solves these nightmares. Crafted from heat-tolerant plastic that matches OEM specifications, it handles extreme pressures while avoiding leaks. This tank stores overflow coolant during radiator heating and returns it when cooling, maintaining optimal levels automatically. Designed for 5 Series F10 F11 520i 528i, it installs directly using existing mounts. Stop worrying about coolant mysteries - secure your cooling system with accurate engineering today.Item Type: Coolant Expansion TankMaterial: PlasticOE: 17138614293Fitment: Fit for 5 Series F10 F11 520i 528iPackage List：1 x Coolant Expansion TankNote:1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please reach out to us before buying to avoid unnecessary return, thanks!

• Accurate OEM Fit - This coolant expansion tank directly replaces OEM 17138614293 with exact dimensions, ensuring seepage-proof installation for 5 Series F10 F11 520i 528i versions without modifications.
• Pressure Management System - Coolant recovery tank stores excess pressure and coolant during radiator heating phases, maintaining optimal radiator fill levels to avoid motor overheating and improve cooling efficiency.
• Robust Construction - High-temperature tolerant plastic material withstands extreme motor heat and substance degradation, providing consistent performance through years of daily driving conditions.
• Cooling System Care - Immediate replacement of damaged units avoids catastrophic cooling issues, avoiding costly motor repairs and ensuring consistent temperature regulation.
• Seepage Avoidance Design - Pressure-tested construction eliminates seepage points, maintaining proper coolant volume to defend against low coolant warnings and potential motor harm.