BMW Coolant Expansion Tanks for MINI

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On certain models, namely E36, E46, and E90, the factory BMW expansion tank is prone to either breaking at connection points or blowing apart altogether. If you're starting to feel like your expansion tank is on borrowed time, it's probably time to replace with either a direct OE replacement, or strengthen your cooling setup with an aluminum expansion tank - we offer numerous performance upgrades for your expansion tank. Especially if you're someone who likes to track your BMW, we recommend upgrading your expansion tank to avoid ruining your track day.
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Coolant Expansion Tank
Coolant Expansion Tank
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Bremmen Parts - Corporate Logo
T#:30728965
Part#: 17137823626
In Stock
Sale - Save 20% $ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.34 USD
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Sale - Save 20%
$ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.34 USD
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Coolant Expansion Tank W/ Cap
Coolant Expansion Tank W/ Cap
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Bremmen Parts - Corporate Logo
T#:639188
Part#: 17137529273
In Stock
Sale - Save 16% $ 38.99

This product was last offered at the strikethrough price on
05-03-2026

$ 32.94 USD
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Sale - Save 16%
$ 38.99

This product was last offered at the strikethrough price on
05-03-2026

$ 32.94 USD
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expansion tank
expansion tank
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Febi - Corporate Logo
T#:340725
Part#: 17137823626
In Stock
$ 68.32

This product was last offered at the strikethrough price on
05-02-2026

$ 54.99 USD
Limited Qty Sale
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$ 68.32

This product was last offered at the strikethrough price on
05-02-2026

$ 54.99 USD
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Bremmen Coolant Bleeder Screw - BMW E30 E36 E38 E39 E46 E83 E90 Z4
Bremmen Coolant Bleeder Screw - BMW E30 E36 E38 E39 E46 E83 E90 Z4 ...
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Bremmen Parts - Corporate Logo
T#:640140
Part#: 17111712788
In Stock
Sale - Save 39% $ 3.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD
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Sale - Save 39%
$ 3.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD
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Plastic bleeder screw for cooling system is used to bleed air that would otherwise create an air pocket and lead to overheating. Includes o-ring seal.
MINI F5X F6X Expansion Tank
MINI F5X F6X Expansion Tank
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Bremmen Parts - Corporate Logo
T#:28138156
Part#: 17137617362
Special Order: No Guaranteed ETA
Sale - Save 5% $ 81.99

This product was last offered at the strikethrough price on
05-03-2026

$ 77.51 USD
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Sale - Save 5%
$ 81.99

This product was last offered at the strikethrough price on
05-03-2026

$ 77.51 USD
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MINI F5X F6X Expansion Tank

For Mini owners looking to maintain optimal engine performance, the MINI F5X F6X Expansion Tank is an essential component. This expansion tank ensures proper cooling system functionality, preventing overheating and potential engine damage. Crafted with high-quality materials, it guarantees durability and reliability for long-term use, providing peace of mind to Mini enthusiasts.

  • Ensures proper cooling system functionality
  • Prevents overheating and potential engine damage
  • Crafted with high-quality materials for durability
  • Provides peace of mind to Mini enthusiasts
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