BMW Coolant Expansion Tanks for BMW X Series E70 (2007-2013)

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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 - E70 X5, E71 X6
Coolant Expansion Tank - E70 X5, E71 X6
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:217490
Part#: 17138621092
In Stock
6% off MSRP $ 236.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 222.99 USD
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6% off MSRP
$ 236.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 222.99 USD
Free Shipping
Add to Wish List


Genuine BMW Expansion Tank -

This item fits the following BMW Chassis:
E70,E71,F15,F16,

This item fits the following BMW Engines:
N63,N63N,S63,N62N

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Rein Coolant Expansion Tank - E70
Rein Coolant Expansion Tank - E70
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:592030
Part#: 17138621092
Ships in 1 Business Day
$ 100.99 USD
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$ 100.99 USD
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Replace your cracked or faded tank
Genuine BMW Intercooler Expansion Tank - N63 4.4L
Genuine BMW Intercooler Expansion Tank - N63 4.4L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:191410
Part#: 17137647281
Ships in 2 Business Days
6% off MSRP $ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 152.99 USD
Free Shipping
Add to Wish List
6% off MSRP
$ 162.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 152.99 USD
Free Shipping
Add to Wish List


Genuine BMW Expansion Tank -
This item fits the following BMW Chassis:
E71,F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N

Mahle-Behr Coolant Expansion Tank - E70
Mahle-Behr Coolant Expansion Tank - E70
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:377924
Part#: 17137552546
Ships on Jul 28, 2026
$ 85.99 USD
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$ 85.99 USD
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Replace your cracked or faded tank
Intercooler Expansion Tank
Intercooler Expansion Tank
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:584477
Part#: 17137647281
Ships in 3 Business Days
$ 71.99 USD
Free Shipping
Add to Wish List
$ 71.99 USD
Free Shipping
Add to Wish List
Rein Coolant Expansion Tank - E70
Rein Coolant Expansion Tank - E70
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:592023
Part#: 17137647290
Ships in 3 Business Days
$ 85.99 USD
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$ 85.99 USD
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Plastic expansion tanks have a limited lifespan - replace every 80,000 miles
Expansion Tank - E70, E71
Expansion Tank - E70, E71
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:46468
Part#: 17137589526
Ships in 5 Business Days
6% off MSRP $ 202.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 190.99 USD
Free Shipping
Add to Wish List
6% off MSRP
$ 202.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 190.99 USD
Free Shipping
Add to Wish List


Genuine BMW Expansion Tank
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6

Fits BMW Engines including:
S63

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