Overview
The BMW F20/F30 new expansion tank is a critical part of the vehicle’s cooling system, designed to regulate coolant levels and maintain correct pressure as the engine heats and cools. This high-quality replacement expansion bottle is manufactured to OEM standards, ensuring reliable performance and long service life. A damaged or leaking expansion tank can result in coolant loss, overheating, and potential engine failure, making this replacement an essential maintenance component for BMW 1 Series (F20) and 3 Series (F30) models.
OEM-Quality Design and Durability
Constructed from premium heat-resistant plastic, this expansion tank is engineered to withstand extreme engine temperatures and constant pressure cycles. The reinforced housing prevents common failures such as cracks, warping, and leaks around the seams. Each unit is carefully manufactured to match the original BMW specifications, guaranteeing perfect compatibility with factory radiators, caps, and coolant hoses.
Direct Fit for BMW F20 and F30 Models
This expansion tank is designed as a direct replacement for a wide range of BMW F20 and F30 vehicles, including popular models such as the 116i, 118i, 120i, 125i, 316i, 318i, 320i, and 328i. All mounting points, sensor ports, and hose connections align exactly with the original part, allowing for quick and hassle-free installation without any modifications.
Restores Proper Cooling System Function
A new expansion tank helps maintain stable coolant pressure and prevents air from entering the cooling system. This improves temperature regulation, protects the radiator and water pump, and reduces the risk of overheating during daily driving or long trips. Replacing a worn tank also eliminates slow coolant leaks that can lead to unexpected breakdowns.
Key Features & Benefits
- Brand new high-quality BMW F20/F30 expansion tank
- OEM specification fit and finish
- Resistant to heat, pressure, and coolant chemicals
- Prevents coolant loss and overheating
- Direct replacement with no modifications
- Ideal for preventative maintenance
Installation Advice
For best results, the cooling system should be properly bled after installation to remove trapped air. It is recommended to inspect the radiator cap, coolant hoses, and thermostat at the same time to ensure complete system reliability. Professional installation is advised if you are not familiar with BMW cooling systems.
Conclusion
The BMW F20/F30 new expansion tank is a dependable and affordable solution to maintain your vehicle’s cooling efficiency. Designed for perfect OEM fitment and long-term durability, this part helps protect your engine from overheating and costly repairs. Whether replacing a cracked tank or performing routine maintenance, this expansion bottle offers quality, reliability, and peace of mind.