Turner Motorsport LTD

Turner M52/M54 Heavy Duty Expansion Tank Kit - E46, E53, E83

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Our Turner Motorsport's full aluminum expansion tank was designed and engineered in house to help with the weak point in your M52/M54 cooling system. The coolant expansion tank goes through heat cycles over and over again from regular driving, it is important that your expansion tank is doing its job to retain coolant to keep your engine operating temperatures down and keep your engine bay clean. Not only is this a major upgrade but also a great maintenance item to replace. Our expansion tank was designed to fit the OEM hoses for an easy install and comes with all the upgraded items you will need for a clean install.

If your BMW needs a new expansion tank, make sure this is the last expansion tank you ever need to buy. Our coolant expansion tank has a full aluminum construction and wrinkle black powder coat for durability. Expansion tank kit comes with all the accessories you need to replace your expansion tank once, and never have to worry about it again.

Product Features:

  • Maintains stock coolant capacity and expansion volume
  • Designed to maintain OE coolant elevation, preventing air pockets
  • Baffled tank ensures that air pockets cannot be introduced during aggressive driving and provides accurate coolant level reading
  • Carefully designed bleed passage prevents the introduction of air as the engine cools
  • Turner engraved internal fill level
  • TIG welded 5052 aluminum construction
  • All bungs are machined to fit factory hose ends

Kit contents:

  • Turner Aluminum Expansion Tank
  • Coolant level sensor
  • Expansion tank cap
  • Flared coolant pressure release line
  • Hardware for installation

Product Development:

  • Turner expansion tanks are designed, engineered, tested and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing.

Click HERE for installation instructions

BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW E46 325Ci M54 2.5L
BMW E46 325i M54 2.5L
BMW E46 325xi M54 2.5L
BMW E46 328Ci M52 2.8L
BMW E46 328i M52 2.8L
BMW E46 330Ci M54 3.0L
BMW E46 330i M54 3.0L
BMW E46 330xi M54 3.0L
BMW E53 X5 M54 3.0L
BMW E83 X3 M54 2.5L
BMW E83 X3 M54 3.0L