Upgraded Aluminium Coolant Overflow Reservoir Tank with Sensor & Cap Compatible with BMW 540i 540i xdrive 740i 740i Xdrive Base 4 Door Sedan 3.0L L6 GAS 2016 2017, V208212

Compatible with:-BMW 2017 540i 3.0L L6 GAS 2017 540i xdrive 3.0L L6 GAS 2016-2017 740i 3.0L L6 GAS 2017 740i xdrive 3.0L L6 GAS

• 【Compatible with】Please use "amazon confirmed fit" above to verify fitment before purchasing. Compatible with:-BMW 2017 540i 3.0L L6 GAS 2017 540i xdrive 3.0L L6 GAS 2016-2017 740i 3.0L L6 GAS 2017 740i xdrive 3.0L L6 GAS
• 【OE Number】17138610656, V208212, 17138610656, 17138742975, 17139487210, 17139884859
• The expansion kettle absorbs the spilled coolant and reduces the excess pressure in the engine cooling system. The expansion kettle helps to maintain a small pressure increase during the expansion of hot water, helps reduce coolant shock, and helps protect the engine cooling system from overpressure damage. In addition, the expansion kettle ensures that there is no waste by redistributing excess coolant into the system.
• Aluminum kettles are more resistant to heat and stress than plastic kettles. All materials are tensile tested and no recycled materials are used
• 【Note】A clogged expansion kettle can cause the engine cooling system to leak or burst because the connections and seals can be damaged due to excessive pressure. If the expansion kettle leaks, it will cause a lack of coolant in the system, causing the engine to overheat. When the engine cools, record the coolant level in the expansion kettle. Once the engine reaches operating temperature, the fluid level must rise. If not, the system is not functioning properly.
• 【PERFECT FIT】: The upgraded aluminum Expansion kettle the listed car models perfectly with better quality. It won't wear as easily as the original plastic one, and can fit as perfectly as the original.