Easy — 1–2 hours
Description
This expansion tank is crucial for allowing coolant to expand, maintaining system pressure, and ensuring the radiator remains full. Over time, the factory plastic tank can develop leaks or cracks due to heat cycles, leading to coolant loss and potential engine issues like increased intake air temperatures and limp mode engagement.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | BMW |
| Part Number | 17132284601 |
| Category | Heating and Cooling |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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