{"product_id":"race-oil-thermostat-m156-159-post-2012-model","title":"Race Oil Thermostat Bypass — M156\/159 POST 2012 MODEL","description":"\u003cp\u003ePermanently open oil thermostat engineered for Mercedes M156 post 2012 and M159 engines. Always-open design routes oil continuously to the cooler for maximum flow and lower oil temperatures during sustained or spirited driving — ideal for track-focused use where minimising peak oil temps matters most.\u003c\/p\u003e\n\u003cp\u003eKey features:\u003c\/p\u003e\n\u003cp\u003ePermanently open — no moving parts, zero flow restriction\u003cbr\u003eDirect-fit for M156 post 2012 \/ M159 oil thermostat housings (vehicle-specific fit required)\u003cbr\u003eCNC-machined aluminum construction with corrosion-resistant finish\u003cbr\u003eLightweight, durable design built for high-temp environments\u003c\/p\u003e\n\u003cp\u003ePerformance benefits:\u003c\/p\u003e\n\u003cp\u003eImmediate, unrestricted oil flow to external coolers — reduces peak oil temps under high load\u003cbr\u003eLowers risk of oil viscosity breakdown and thermal-related wear on track or spirited runs\u003cbr\u003eEliminates thermostat failure (no sticking\/partial opening)\u003c\/p\u003e\n\u003cp\u003eTrade-offs \/ considerations:\u003c\/p\u003e\n\u003cp\u003eSlower oil warm-up after cold starts and during low-load driving — oil reaches operating temp later\u003cbr\u003eOil will run cooler than stock at normal driving\u003cbr\u003eIntended for race\/track use, not optimal for owners prioritising rapid warm-up or strict emissions operation\u003c\/p\u003e\n\u003cp\u003eFitment note — M156 vs M159:\u003c\/p\u003e\n\u003cp\u003eThis product fits M156 and M159 engines, but some M156 cars were originally equipped with the M159-style thermostat housing\/part number. Customers must confirm which thermostat type is fitted to their vehicle (M156 or M159) and select the matching part —verify by checking your car’s OEM part number or comparing the existing thermostat housing before ordering.\u003c\/p\u003e\n\u003cp\u003eRecommended use:\u003c\/p\u003e\n\u003cp\u003eTrack days, racing, high-performance\/spirited driving and builds with large oil coolers\u003cbr\u003eWarmer countries\u003cbr\u003eNot recommended as a permanent daily-driver replacement if rapid oil warm-up or factory temperature ranges are required as such in colder countries\u003c\/p\u003e\n\u003cp\u003eInstallation notes:\u003c\/p\u003e\n\u003cp\u003eDirect-replacement design. May require new O-ring.\u003cbr\u003eVerify vehicle-specific fitment, orientation, and part number (M156 vs M159) before installation\u003cbr\u003eAfter installation, monitor oil temperature and level; use a temp gauge to confirm operating range\u003c\/p\u003e","brand":"TME Performance","offers":[{"title":"Default Title","offer_id":54416573628691,"sku":null,"price":138.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/8380\/5715\/files\/DSC07721_0c03b9b2-56aa-4336-80f2-995978a95ba5.jpg?v=1783775366","url":"https:\/\/tmeperformance.com\/products\/race-oil-thermostat-m156-159-post-2012-model","provider":"TME Performance","version":"1.0","type":"link"}