How To replace a bmw x5 e70 expansion tank full diy

In this video I show you how to easily replace the expansion tank on a BMW X5 E70 with the N55 6 cylinder engine. I also demonstrate how to correctly vacuum bleed the system to ensure no air pockets remain in the system. 

See BELOW for PARTS and TOOLS

Parts required And Recommended Tools

BMW X5 E70 With The N55 Engine: Expansion Tank

BMW Expansion Tank Part 17137552646 BMW X5 E70

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OEM Quality.  Precision-molded to OE dimensions to ensure compatibility with original sensors and connections.  Quality materials resist engine heat and harsh cooling system environment.  24-Month / Unlimited Mileage Warranty 

BMW Part Number:

 17137552546

Vacuum Bleeder Kit

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 Utilizing an air compressor you can perform a leak test, eliminate airlocks and refill the entire system including the heater core in less than two minutes.

OEM Recommend Tool

BMW Coolant

BMW OE Coolant Anti Freeze Coolant

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BMW OEM Blue Cooant

Coolant Must Be Mixed  50/50

BMW X5 Expansion Tank Cap

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BMW Expansion Tank Cap

OEM Part  17137516004