Overheating? BMW Coolant Expansion Tank Replacement | 330i 335i 340i 440i (2016–2019)

This is a tutorial on how to replace the coolant expansion tank (coolant reservoir / radiator reservoir) on a 2017 BMW 340i, but it also applies to 2016–2019 BMW 330i, 335i, 340i, 430i, 435i, and 440i F30 / F32 / F36 models with the B58 engine. A few common symptoms of a bad or failing BMW coolant expansion tank include: coolant leaks under the car, “Low Coolant” warning light on the dash, visible cracks in the reservoir, engine overheating, needing to frequently add coolant. If your BMW coolant reservoir is leaking, cracked, or causing overheating, this step-by-step DIY video will show you how to remove the old expansion tank, install the new one. Links to Tools & Parts Below: Both Tanks & Caps: https://bit.ly/4anVRPG Extra Coolant Hose Retaining Clips: advanceautoparts.rt8x.net/2aZ53M Long Needle Nose Pliers: https://amzn.to/3JT2KyS Curved Needle Nose Pliers: https://amzn.to/46rnMgK Pick Tool Set: https://amzn.to/4pgfkbG BMW 340i coolant expansion tank replacement, BMW F30 coolant reservoir replacement, BMW 3 Series coolant tank DIY, BMW B58 coolant leak fix, BMW radiator reservoir replacement, how to replace BMW coolant expansion tank