Genuine BMW Charge Air Cooler Expansion Tank - BMW F22/23, F3X B48/B46 B58

Product Details

Your charge air cooler's coolant expansion tank acts as a reservoir, housing extra coolant, and gives fluid a place to go after expansion and contraction from temperature change. Because the plastic tank is subjected to regular temperature changes, the plastic can become brittle over time and will often crack or break. If your tank is leaking and you lose too much coolant, your charge air cooler will not function properly and your air intake temperatures will begin to rise, reducing horsepower and efficiency.

If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.

Product Q&A

Lifetime Replacement