{"product_id":"coolant-expansion-tank-reservoir-bmw-f-chassis-n55-n20-engines","title":"Engine Coolant Water Bottle – BMW B47 N47 N55 N57 (12-20)","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-index-in-node=\"44\" data-path-to-node=\"1\"\u003eMain Engine Coolant Expansion Tank (Reservoir)\u003c\/b\u003e for BMW F-chassis vehicles equipped with N20 (4-cylinder), N55 (6-cylinder), and S55 (M3\/M4) gasoline engines. It serves as the primary overflow basin for the high-temperature engine cooling circuit, allowing the pressurized coolant to expand and contract safely as the engine heats up and cools down.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eOver time, the constant stress of high heat and pressure causes the factory composite plastic to become yellowed, brittle, and prone to hairline cracks—especially along the molded center seams. When it fails, you will notice white, crusty coolant residue around the tank, a sweet maple-syrup smell, or active dripping underneath the front passenger side of the engine bay.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"4\"\u003eVehicle Compatibility:\u003c\/b\u003e \u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,0,0\"\u003e1 \u0026amp; 2 Series (F20 \/ F21 \/ F22):\u003c\/b\u003e 2012–2018 \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,1,0\"\u003e3 Series (F30 \/ F31):\u003c\/b\u003e 2012–2018 \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,2,0\"\u003e4 Series (F32 \/ F36 Gran Coupe):\u003c\/b\u003e 2014–2019 \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,3,0\"\u003eM-Chassis (F80 M3 \/ F82 M4 \/ F87 M2):\u003c\/b\u003e 2015–2020\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"7,2,0\"\u003eIncludes:\u003c\/b\u003e Fluid Level Sensor port (Cap often sold separately)\u003c\/p\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cspan\u003eReplacement Part for: 17137642160, 17137609468.\u003c\/span\u003e\u003c\/p\u003e","brand":"MYTY Auto Parts","offers":[{"title":"Default Title","offer_id":48200950546671,"sku":"17137642160","price":1400.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7183\/5631\/files\/2014-F30-335i-N55-Coolant-Expansion-Tank.png?v=1774570087","url":"https:\/\/myty.co.za\/products\/coolant-expansion-tank-reservoir-bmw-f-chassis-n55-n20-engines","provider":"MYTY Auto Parts","version":"1.0","type":"link"}