{"product_id":"aluminum-coolant-overflow-expansion-tank-for-mini-cooper-r56-2007-2013-1-6l","title":"Aluminum Coolant Overflow Expansion Tank for Mini Cooper R56 (2007-2013) 1.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eTIG-Welded Aluminum Coolant Overflow Expansion Tank for 2007-2013 Mini Cooper Cooper (R56)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Aluminum Coolant Overflow Expansion Tank replaces the failure-prone factory plastic reservoir on the 2007-2013 Mini Cooper to prevent catastrophic coolant loss and withstand extreme under-hood thermal cycles.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mini Cooper Cooper Plastic Tank Failure\u003c\/h3\u003e\n\u003cp\u003eThe factory cooling reservoir mounted in the second-generation \u003cstrong\u003eR56\u003c\/strong\u003e engine bay sits directly adjacent to intense radiant heat sources, including the exhaust manifold and turbocharger plumbing on forced-induction variants. Molded from OEM-grade nylon plastic, the stock tank rapidly undergoes thermal degradation and cyclic embrittlement. Continuous exposure to operating temperatures exceeding 215°F combined with 1.2–1.5 bar of cooling system pressure causes the factory ultrasonic seam welds to separate, the inlet\/outlet hose spigots to crack, and the filler neck threads to distort. This structural fatigue leads to micro-fractures, persistent coolant seepage, low-coolant dash warnings, and eventual pressurized venting that risks severe \u003cstrong\u003eN12\u003c\/strong\u003e, \u003cstrong\u003eN14\u003c\/strong\u003e, \u003cstrong\u003eN16\u003c\/strong\u003e, or \u003cstrong\u003eN18\u003c\/strong\u003e engine overheating.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a permanent reliability upgrade, this direct-fit expansion tank is fabricated from heavy-gauge aluminum alloy rather than thermal-degrading polymers. The unit features hand-laid \u003cstrong\u003eTIG welded\u003c\/strong\u003e seams across all perimeter joints, internally baffled chambers, and fully leak-tested construction to ensure structural rigidity under sustained high-pressure operation. Integrated aluminum hose barbs resist clamp torque without crushing or stress-cracking. It incorporates an external sight tube for fast optical fluid level checks without unsealing the cooling system, an included pressure-rated billet cap, and precision-located mounting brackets that bolt directly to the chassis without requiring fabrication, hose cutting, or bracket relocation.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2007-2013 Mini Cooper Cooper\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eN12 \/ N16 (1.6L NA)\u003c\/strong\u003e \/ \u003cstrong\u003eR56\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e118-121 hp \/ 114 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003e17137823626\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2013 MINI Cooper Hatchback R56 1.6L\u003c\/li\u003e\n  \u003cli\u003e2007-2013 MINI Cooper S Hatchback R56 1.6L Turbo\u003c\/li\u003e\n  \u003cli\u003e2009-2013 MINI John Cooper Works Hatchback R56 1.6L Turbo\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the R56 Cooper?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2013 Mini Cooper Cooper equipped with the \u003cstrong\u003eN12 \/ N16\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this aluminum expansion tank require system bleeding after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, a standard vacuum fill or thorough cooling system manual bleed procedure is required to purge trapped air pockets from the engine block and heater core.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mini Cooper Precision Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEuropean performance platforms demand precise thermal regulation to protect tightly packaged aluminum powertrains from catastrophic head gasket and warpage failures; this all-aluminum expansion tank eliminates factory plastic vulnerabilities to deliver lasting cooling system integrity.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67524670128376,"sku":"DS-ED53CN23D","price":96.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/aluminum-coolant-overflow-expansion-tank-for-mini-cooper-r56-2007-2013-1-6l-1.webp?v=1790462586","url":"https:\/\/performancechiptuning.com\/products\/aluminum-coolant-overflow-expansion-tank-for-mini-cooper-r56-2007-2013-1-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}