- Improve your E36 3-Series / M3's cooling capacity to keep that competitive edge.
- Don't get slowed down by your stock cooling system when your E36 3-Series / M3 is far from stock power.
- Give your engine bay that extra pristine look that everyone will love!
- Direct fit for the 1992--1999 BMW E36
- Dipstick allows for proper coolant levels
- All-aluminum, fully-welded construction for maximum durability during repeated cold and hot cycles
- Installs in under 1 hour
- Fits stock and Mishimoto BMW E36 Performance Fan Shroud Kit
- 1998 - 1999 BMW 323is Base
- 1995 - 1999 BMW M3 Base
- 1996 - 1998 BMW 328i Base
- 1996 - 1998 BMW 328is Base
- 1992 - 1995 BMW 325i Base
- 1992 - 1995 BMW 325is Base
- 1995 BMW M3 Lightweight
Add some additional reliability and engine bay styling with the Mishimoto BMW E36 Aluminum Coolant Expansion Tank. Stock coolant expansion tanks are prone to failure after years of constant temperature variations. The Mishimoto tank is constructed from durable, TIG-welded aluminum for optimal durability and longevity. The engineers at Mishimoto have designed a CNC-machined dipstick which doubles as a bleeder and allows for proper cold coolant levels. It features a polished finish that will look great in your engine bay. This expansion tank is a direct fit for the stock and Mishimoto BMW E36 Performance Fan Shroud Kit! As with all our products, this expansion tank includes the Mishimoto Lifetime Warranty.