{"product_id":"06e-121-111-al-genuine-vw-audi-engine-coolant-thermostat-assembly","title":"06E-121-111-AL Genuine VW\/Audi Engine Coolant Thermostat Assembly","description":"\u003cp\u003eRestore proper coolant regulation with the \u003cstrong\u003e06E-121-111-AL Genuine VW\/Audi engine coolant thermostat assembly\u003c\/strong\u003e for the listed supercharged 3.0L TFSI applications. The thermostat controls coolant circulation as the engine warms up and operating temperature changes. Correct regulation supports consistent engine temperature rather than allowing unrestricted flow or retaining heat when additional cooling is needed.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 06E-121-111-AL \/ 06E121111AL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly:\u003c\/strong\u003e thermostat mechanism, housing and installation gasket. The source photos show the spring-loaded valve, housing connection and seven mounting positions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e one thermostat assembly; coolant, water pump, pipes and other service seals are separate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e located beneath the supercharger on the documented 3.0T applications; access requires substantial disassembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eA thermostat that remains closed or does not open correctly after cooling-system diagnosis confirms restricted coolant circulation.\u003c\/li\u003e\n\u003cli\u003eA thermostat that remains open and produces abnormally slow warm-up or temperature regulation problems.\u003c\/li\u003e\n\u003cli\u003eA cracked housing or confirmed leakage at the thermostat assembly after inspecting nearby coolant pipes and seals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAudi bulletin 2040491\/4 addresses DTC P1B1C00 and a cooling-system warning. Its diagnostic procedure separates a thermostat fault from an ECM software issue: freeze-frame coolant temperature of at least 115°C calls for thermostat replacement and a software update, while a lower recorded temperature calls for software correction. That threshold is diagnostic information, not the thermostat opening temperature. A warning or code alone does not establish that this part has failed.\u003c\/p\u003e\u003ch3\u003eService notes\u003c\/h3\u003e\u003cp\u003eFollow the current VIN-specific repair procedure, renew disturbed seals as specified, and inspect the coolant pipe connections before reassembly. Refill with the specified coolant, bleed the cooling system and check for leaks and stable operating temperature. Address an overheating condition before continuing to operate the vehicle.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eModel years\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eApplication restrictions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi A6\u003c\/td\u003e\n\u003ctd\u003e2012–2015\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eSedan; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi A7\u003c\/td\u003e\n\u003ctd\u003e2012–2016\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eSportback; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi A8\u003c\/td\u003e\n\u003ctd\u003e2013–2014\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eSedan; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi Q5\u003c\/td\u003e\n\u003ctd\u003e2013–2017\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eSUV; 2016–2017 Premium Plus only in additional catalog confirmation; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi S4\u003c\/td\u003e\n\u003ctd\u003e2011–2012\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eSedan; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi S5\u003c\/td\u003e\n\u003ctd\u003e2010–2013\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eCabriolet only; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi Q7\u003c\/td\u003e\n\u003ctd\u003e2011–2012\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eSUV; Verify VIN-specific installation\u003c\/td\u003e\n\u003ctd\u003eMatch installed thermostat and VIN; gasoline 3.0T only. Excludes diesel and 4.2L V8.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi SQ5\u003c\/td\u003e\n\u003ctd\u003e2014–2017\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003e8R; Premium Plus SUV; Match VIN-specific cooling assembly\u003c\/td\u003e\n\u003ctd\u003eConfirm installed thermostat and VIN; specified gasoline engine and body\/trim only. Excludes other engines.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi S5\u003c\/td\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eB8; quattro Coupe; Match VIN-specific cooling assembly\u003c\/td\u003e\n\u003ctd\u003eConfirm installed thermostat and VIN; specified gasoline engine and body\/trim only. Excludes other engines.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi S5\u003c\/td\u003e\n\u003ctd\u003e2014–2016\u003c\/td\u003e\n\u003ctd\u003e3.0L TFSI supercharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eB8.5; Prestige quattro Coupe; Match VIN-specific cooling assembly\u003c\/td\u003e\n\u003ctd\u003eConfirm installed thermostat and VIN; specified gasoline engine and body\/trim only. Excludes other engines.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eMatch the installed thermostat and verify VIN-specific part applicability before ordering. Only the listed gasoline 3.0T applications apply; diesel engines and the S5 4.2L V8 coupe are excluded.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eTechnical references\u003c\/h3\u003e\u003cp\u003eAudi service bulletin 2040491\/4; Audi 24AP\/H6 thermostat replacement procedure.\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48000153878705,"sku":"06E-121-111-AL","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/06e-121-111-al-genuine-vw-audi-thermostat-01.png?v=1790905189","url":"https:\/\/hstuning.com\/products\/06e-121-111-al-genuine-vw-audi-engine-coolant-thermostat-assembly","provider":"HS Tuning ","version":"1.0","type":"link"}