This Expansion Tank Hose is a OEM replacement for your F22 M235i, F3X 335i/435i, F87 M2 with the N55 engine.
Replacement for BMW Part Number:
The engine coolant reservoir hose connects the engine’s cooling system to the coolant reservoir tank. Its primary function is to transport excess coolant from the radiator to the reservoir when the engine heats up and coolant expands. When the engine cools down, the hose also allows coolant to flow back into the radiator from the reservoir, ensuring the engine maintains the proper coolant level. This helps prevent overheating and maintains optimal engine temperature.
Engine Coolant Reservoir Hose Failure Symptoms
- Leaks: A leak in the coolant reservoir or hose can cause the engine to overheat
- Overheating: A malfunctioning coolant hose or a leaking coolant reservoir can cause the engine to overheat
- Check engine light: A faulty coolant hose can cause the check engine light on the dashboard to illuminate due to a fault in coolant temperature and level measuring systems
This is a hose manufactured by BOGAP - an original supplier to BMW for many engine components. As an OEM, BOGAP meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag.
