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Expansion Tank

The coolant expansion tank in your MINI or BMW gives additional fluid a place to go after expansion and contraction from temperature changes. But because the expansion tank is subjected to extreme temperature changes on a regular basis, it can often develop cracks or splits in seams, and become discolored with age. If your coolant expansion tank is similarly worn, replace it with a new unit from Bavarian Autosport. Remember to also stock up on new coolant as you'll need to completely drain the coolant system to replace it.

Bavarian Autosport has been helping BMW and MINI enthusiasts maintain, repair, and upgrade their vehicles for more than 43 years. Every item we sell comes with a 100% satisfaction guarantee and a MINImum one-year warranty, and a two-year warranty on every part with the Bavarian Autosport brand. Because we use the same manufacturers as BMW, all of our parts meet or exceed the OEM equipment. We have a full team of advisors ready to answer your questions and help you find the right part for your MINI or BMW by phone or email. We even give you free shipping on most orders over $99 and because we're located in tax-free New Hampshire, there is no added sales tax for any purchase.

Set Descending Direction
  • Expansion tank

    Radiator Expansion Tank - Behr

    PART#: 376731501

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $32.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Radiator Expansion Tank - Behr

    PART#: 376755091

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $14.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Radiator Expansion Tank - Behr

    PART#: 376755111

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $39.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion Tank - Plastic - Behr

    Expansion Tank - Behr

    PART#: 376789711

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $39.95 / each

    Availability: Out of stock

    Ships for free if total order exceeds $99
  • Coolant Expansion Tank - BEHR

    Coolant Expansion Tank - BEHR

    PART#: 376789721

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $39.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Coolant Expansion Tank - Behr

    PART#: 376789731

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $46.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Coolant Expansion Tank - Behr

    PART#: 376888411

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $34.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Radiator cap

    Radiator Cap - Behr

    PART#: 376743451

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $8.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Coolant Expansion Tank - Behr

    Coolant Expansion Tank - Behr

    PART#: 376755211

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $36.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Coolant Expansion Tank - Behr

    Coolant Expansion Tank - Behr

    PART#: 376789751

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $42.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion Tank - Plastic - Behr

    Expansion Tank - Plastic - Behr

    PART#: 376789761

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $49.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Radiator Expansion Tank - Behr

    Radiator Expansion Tank - Behr

    PART#: 376737181

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $31.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Coolant Expansion Tank

    Coolant Expansion Tank

    PART#: 376737221

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $49.95 / each

    Availability: Out of stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Radiator Expansion Tank

    PART#: 17 10 2 229 772

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $112.22 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Expansion tank

    Radiator Expansion Tank - Genuine BMW

    PART#: 17 11 7 573 751

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $102.48 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Coolant Expansion Tank - Genuine BMW

    PART#: 17 10 7 514 964

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $117.88 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Coolant Expansion Tank - Genuine BMW

    PART#: 17 10 7 836 448

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $141.42 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Expansion tank

    Expansion Tank - Plastic

    PART#: 17 11 1 116 721

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $76.94 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Expansion tank

    Expansion Tank - Plastic

    PART#: 17 11 1 178 251

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $76.38 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Expansion tank

    Expansion Tank - Plastic

    PART#: 17 11 1 178 252

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $76.94 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Expansion Tank Mounting Bracket - Genuine BMW

    PART#: 17 11 1 436 250

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $60.68 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Expansion Tank - Genuine BMW

    PART#: 17 11 1 707 505

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $88.88 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Expansion Tank - Plastic

    PART#: 17 11 1 707 540

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $100.73 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Expansion tank

    Coolant Expansion Tank

    PART#: 17 11 1 712 641

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $100.73 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Radiator Expansion Tank - Genuine BMW

    PART#: 17 11 1 741 167

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $117.88 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion tank

    Coolant Expansion Tank

    PART#: 17 11 2 225 543

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $120.24 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Radiator cap

    Radiator Cap - Genuine BMW

    PART#: 17 11 2 227 683

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $18.00 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99