{"product_id":"glow-plug-control-unit-relay-for-bmw-12217801200","title":"Glow Plug Control Unit Relay For BMW 12217801200","description":"\u003ch3 style=\"color: #00badb;\"\u003eCheck part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003eThe \u003cstrong data-end=\"265\" data-start=\"215\"\u003eglow plug control unit relay (OEM 12217801200)\u003c\/strong\u003e is a critical engine management component for BMW diesel vehicles, designed to regulate the electrical current supplied to the glow plugs during engine start-up. By controlling the timing and power delivery to each glow plug, this relay ensures effective pre-heating of the combustion chambers, which is essential for reliable cold starts and smoother diesel ignition. A malfunctioning glow plug relay can lead to difficult starting, extended crank times, rough idle, or glow plug warning lights, especially in colder weather. This replacement unit matches original manufacturer specifications and provides dependable performance for compatible BMW models that use the OEM reference \u003cstrong data-end=\"964\" data-start=\"949\"\u003e12217801200\u003c\/strong\u003e. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOEM Number: \u003c\/strong\u003e12217786821, 12217801200, 12237786869, H7285681, 132302, 0884030, 75614324, GSE101\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOperating Mode :\u003c\/strong\u003e 12V \u003cbr\u003e\u003cbr\u003e4 CYLINDER MODELS ONLY! \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eQuantity :\u003c\/strong\u003e 1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor the Following Cars :\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eAlpina D3 (E90) 2.0 Saloon 12.2005-04.2008\u003cbr\u003eAlpina D3 (E91) 2.0 Estate 12.2005-04.2008\u003cbr\u003eBMW 1 (E87) 118 d Hatchback 06.2004-02.2007\u003cbr\u003eBMW 1 (E87) 120 d Hatchback 06.2004-06.2011\u003cbr\u003eBMW 3 (E46) 318 d Saloon 09.2001-03.2003\u003cbr\u003eBMW 3 (E46) 320 d Saloon 09.2001-05.2005\u003cbr\u003eBMW 3 (E90) 318 d Saloon 03.2005-08.2007\u003cbr\u003eBMW 3 (E90) 320 d Saloon 12.2004-09.2007\u003cbr\u003eBMW 3 Compact (E46) 318 td Hatchback 03.2003-02.2005\u003cbr\u003eBMW 3 (E46) 320 Cd Convertible 02.2005-12.2007\u003cbr\u003eBMW 3 (E46) 320 Cd Coupe 11.2003-07.2006\u003cbr\u003eBMW 3 Touring (E46) 318 d Estate 03.2003-02.2005\u003cbr\u003eBMW 3 Touring (E46) 320 d Estate 09.2001-02.2005\u003cbr\u003eBMW 3 Touring (E91) 318 d Estate 09.2005-08.2007\u003cbr\u003eBMW 3 Touring (E91) 320 d Estate 12.2004-08.2007\u003cbr\u003eBMW 5 (E60) 520 d Saloon 09.2005-02.2007\u003cbr\u003eBMW 5 Touring (E61) 520 d Estate 04.2005-05.2010\u003cbr\u003eBMW X3 (E83) 2.0 d SUV 09.2004-08.2007 \u003cbr\u003e\u003cbr\u003eAll our Glow Plug Control Unit Relay For BMW 12217801200 are OEM quality and reliable after market car parts. This Glow Plug Control Unit Relay For BMW 12217801200 \u003cspan\u003eis specifically compatible with Alpina D3, BMW 1, 3, 5 \u0026amp; X3.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePlease use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eIf you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing \u0026amp; shipping guide here.\u003c\/p\u003e\n\u003ch2 data-end=\"1025\" data-start=\"1010\"\u003eKey Benefits\u003c\/h2\u003e\n\u003cp data-end=\"1235\" data-start=\"1027\"\u003e\u003cstrong data-end=\"1071\" data-start=\"1027\"\u003eRestores Reliable Cold Start Performance\u003c\/strong\u003e\u003cbr data-end=\"1074\" data-start=\"1071\"\u003eThis relay helps ensure the glow plugs receive appropriate power and timing, reducing hard starts and long crank times commonly experienced in colder conditions.\u003c\/p\u003e\n\u003cp data-end=\"1482\" data-start=\"1237\"\u003e\u003cstrong data-end=\"1262\" data-start=\"1237\"\u003eOEM Reference Fitment\u003c\/strong\u003e\u003cbr data-end=\"1265\" data-start=\"1262\"\u003eDesigned to directly replace the original BMW part with reference \u003cstrong data-end=\"1383\" data-start=\"1331\"\u003e12217801200 (also referenced as 12 21 7 801 200)\u003c\/strong\u003e, enabling straightforward installation without modification. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.autodoc.co.uk\/car-parts\/oem\/12217801200?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.autodoc.co.uk\/car-parts\/oem\/12217801200?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"1726\" data-start=\"1484\"\u003e\u003cstrong data-end=\"1519\" data-start=\"1484\"\u003ePrecise Glow Plug Power Control\u003c\/strong\u003e\u003cbr data-end=\"1522\" data-start=\"1519\"\u003eAccurate regulation of current to the glow plugs promotes consistent combustion chamber pre-heating, which supports smoother engine starts and reduces starter strain. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.bimmerforums.co.uk\/threads\/x5-glow-control-unit.132416\/?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.bimmerforums.co.uk\/threads\/x5-glow-control-unit.132416\/?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"1986\" data-start=\"1728\"\u003e\u003cstrong data-end=\"1779\" data-start=\"1728\"\u003eImproves Diesel Engine Efficiency and Emissions\u003c\/strong\u003e\u003cbr data-end=\"1782\" data-start=\"1779\"\u003eCorrect operation of the glow plug system assists early combustion efficiency, which can help reduce white smoke and support better fuel economy in the warm-up phase. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.championautoparts.com\/en-gb\/news\/glow-plug-control-module.html?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.championautoparts.com\/en-gb\/news\/glow-plug-control-module.html?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"2241\" data-start=\"1988\"\u003e\u003cstrong data-end=\"2019\" data-start=\"1988\"\u003eBroad Vehicle Compatibility\u003c\/strong\u003e\u003cbr data-end=\"2022\" data-start=\"2019\"\u003eCommonly fitted on diesel BMW models such as 1 Series, 3 Series, 5 Series, X3 and other vehicles equipped with 4-cylinder M47\/M47N engines that use the \u003cstrong data-end=\"2189\" data-start=\"2174\"\u003e12217801200\u003c\/strong\u003e control unit. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.ebay.co.uk\/itm\/177575184200?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.ebay.co.uk\/itm\/177575184200?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2284\" data-start=\"2248\"\u003eFrequently Asked Questions (FAQs)\u003c\/h2\u003e\n\u003cp data-end=\"2587\" data-start=\"2286\"\u003e\u003cstrong data-end=\"2339\" data-start=\"2286\"\u003e\u003cbr\u003eQ: What does the glow plug control unit relay do?\u003c\/strong\u003e\u003cbr data-end=\"2342\" data-start=\"2339\"\u003eA: The relay manages the current delivered to the glow plugs based on inputs from the engine management system, ensuring the combustion chambers are pre-heated appropriately for combustion in diesel engines. \u003c\/p\u003e\n\u003cp data-end=\"2873\" data-start=\"2589\"\u003e\u003cstrong data-end=\"2650\" data-start=\"2589\"\u003eQ: What are common symptoms of a failing glow plug relay?\u003c\/strong\u003e\u003cbr data-end=\"2653\" data-start=\"2650\"\u003eA: Symptoms include hard starting, longer crank times in cold weather, rough idle after start-up, visible white exhaust smoke, and dash warning lights for glow plug or engine faults. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.championautoparts.com\/en-gb\/news\/glow-plug-control-module.html?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.championautoparts.com\/en-gb\/news\/glow-plug-control-module.html?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"3189\" data-start=\"2875\"\u003e\u003cstrong data-end=\"2925\" data-start=\"2875\"\u003eQ: Which BMW engines and models use this part?\u003c\/strong\u003e\u003cbr data-end=\"2928\" data-start=\"2925\"\u003eA: This control unit relay is usually installed on older 4-cylinder diesel BMW engines such as M47\/M47N found in 1 Series (E87), 3 Series (E46\/E90), 5 Series (E60) and X3 (E83) when matched to OEM reference \u003cstrong data-end=\"3150\" data-start=\"3135\"\u003e12217801200\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"3474\" data-start=\"3191\"\u003e\u003cstrong data-end=\"3227\" data-start=\"3191\"\u003eQ: Is this a direct replacement?\u003c\/strong\u003e\u003cbr data-end=\"3230\" data-start=\"3227\"\u003eA: Yes. This glow plug control unit relay is designed to directly replace the original component, meeting the OEM specification for \u003cstrong data-end=\"3377\" data-start=\"3362\"\u003e12217801200\u003c\/strong\u003e and suitable for compatible vehicles without modification. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.autodoc.co.uk\/car-parts\/oem\/12217801200?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.autodoc.co.uk\/car-parts\/oem\/12217801200?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"3770\" data-start=\"3476\"\u003e\u003cstrong data-end=\"3535\" data-start=\"3476\"\u003eQ: Should I test glow plugs before replacing the relay?\u003c\/strong\u003e\u003cbr data-end=\"3538\" data-start=\"3535\"\u003eA: It’s recommended to test both the glow plugs and the relay when diagnosing cold start issues. A failed glow plug can mimic relay problems, so confirming both components ensures proper repair. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.championautoparts.com\/en-gb\/news\/glow-plug-control-module.html?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.championautoparts.com\/en-gb\/news\/glow-plug-control-module.html?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"D2P Autoparts","offers":[{"title":"Default Title","offer_id":57121261126019,"sku":"TB12217801200_313","price":94.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0436\/2086\/0059\/files\/TB12217801200_7.jpg?v=1767686030","url":"https:\/\/d2pautoparts.com\/en-ie\/products\/glow-plug-control-unit-relay-for-bmw-12217801200","provider":"D2P Autoparts","version":"1.0","type":"link"}