Heating and Cooling› Overflow Tanks and Catch Cans

Behr

Coolant Expansion Tank

$134.00

SKU: 17137529273

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

This tank is made by Behr, the official manufacturer and supplier to MINI for this part. It is intended to address common issues like cracks in the original plastic tank, which often result in white residue around the header heat shield and the container itself. The newest part number for this component features a supposedly improved glue seal to prevent splitting.
Show original supplier description
The Behr coolant expansion tank serves as a crucial component for your MINI's cooling system, effectively holding the overflow of coolant. This specific part number is an updated version from MINI, featuring an improved seal between its upper and lower sections to mitigate the splitting issues that plagued earlier designs. This expansion tank is compatible with Gen1 MINI models, specifically the R52-S MINI Cooper S Convertible from 2004-2008 and the R53-S MINI Cooper S Hatchback from 2002-2006. Installation is described as a straightforward swap, making it a manageable DIY repair for many owners experiencing a leaking or cracked coolant tank.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandBehr
Part Number17137529273
CategoryHeating and Cooling
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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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