Mishimoto 92-99 BMW 3 Series Aluminum Coolant Expansion Tank - Black

You're getting a well-built aluminum coolant expansion tank in black, along with a CNC-machined dipstick that doubles as a bleeder. This part is designed to replace the original plastic coolant reservoir on a range of BMW E36 models from 1992 to 1999, including the 323i, 325i, 328i, and M3. Stock plastic tanks can become brittle and fail over time due to constant heating and cooling cycles, leading to leaks and potential overheating issues. This Mishimoto tank offers a more reliable solution.

Constructed from durable, TIG-welded aluminum, this expansion tank is built to withstand repeated temperature changes without cracking or becoming brittle. The integrated dipstick is a neat feature; it not only helps you check your cold coolant level accurately but also serves as a bleeder valve to help you get air out of the system during refills. It's designed as a direct fit, meaning it should install without major modifications, making it a straightforward upgrade for your cooling system's reliability and engine bay appearance.