{"title":"BMW Glow Plug Replacement Guide BMW Diesel – Tips 2026","description":"\u003ch2 style=\"color: #cc0000;\"\u003eChanging BMW Diesel Glow Plugs – Complete Guide \u0026amp; Tips\u003c\/h2\u003e\n\u003cp\u003eRegardless of your BMW's age, the glow plugs will eventually fail. Like any diesel vehicle, your BMW has four glow plugs (six in six-cylinder models) that preheat the combustion chamber and make starting easier on cold mornings. BMW also uses a post-glow function that keeps the glow plugs running for a few minutes after starting – to reduce emissions.\u003c\/p\u003e\n\u003ch2 style=\"color: #cc0000;\"\u003eWhy replace faulty BMW glow plugs immediately?\u003c\/h2\u003e\n\u003cp\u003eMany BMW owners don't know this: In vehicles with a diesel particulate filter (DPF), a faulty glow plug prevents the regeneration of the DPF system. This can lead to expensive repairs to the particulate filter.\u003c\/p\u003e\n\u003cp\u003eIf you are not sure if a glow plug is faulty – read the error codes with our BMW diagnostic software and clear them after replacement.\u003c\/p\u003e\n\u003ch2 style=\"color: #cc0000;\"\u003eAlways change all glow plugs at once\u003c\/h2\u003e\n\u003cp\u003eA common mistake: only changing the faulty glow plug. This is not advisable – and here's why:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eAccessing the glow plugs requires removing several plastic covers – which takes a lot of time\u003c\/li\u003e\n\n\u003cli\u003eAll glow plugs have been in operation for the same duration – the remaining ones will also fail soon\u003c\/li\u003e\n\n\u003cli\u003eAnother replacement means a lot of effort again\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003eRecommendation: Always replace the entire set when changing glow plugs. For BMW Diesel, we recommend glow plugs from the \u003cstrong\u003eBERU\u003c\/strong\u003e brand – high quality and durable.\u003c\/p\u003e\n\u003ch2 style=\"color: #cc0000;\"\u003eStuck BMW Glow Plugs – How to Avoid Problems\u003c\/h2\u003e\n\u003cp\u003eOne of the biggest challenges when changing glow plugs on a BMW Diesel is the risk of them seizing in the cylinder head. If they break off, either the cylinder head must be dismantled or a specialist must remove the plug on-site – both expensive and time-consuming.\u003c\/p\u003e\n\u003ch3\u003eCauses of stuck glow plugs:\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eCarbon deposits between the glow plug body and the cylinder head\u003c\/li\u003e\n\n\u003cli\u003eCorrosion on the thread\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eBest Method – Soaking Glow Plugs Overnight:\u003c\/h3\u003e\n\u003cp\u003eAlways assume that the glow plugs are stuck. The best method is to soak them overnight with a good penetrating oil:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eKano Kroil\u003c\/strong\u003e – penetrates deep into the thread, dissolves carbon and corrosion (first recommendation)\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003e50\/50 mixture of ATF oil and acetone\u003c\/strong\u003e – very effective alternative\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003e50\/50 mixture of cola and vinegar\u003c\/strong\u003e – simple home remedy alternative\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eStep-by-step removal:\u003c\/h3\u003e\n\u003col\u003e\n\n\u003cli\u003eSoak glow plugs overnight in penetrating oil\u003c\/li\u003e\n\n\u003cli\u003eLightly tighten the plug first to loosen corrosion deposits on the thread\u003c\/li\u003e\n\n\u003cli\u003eThen slowly loosen with even pressure\u003c\/li\u003e\n\n\u003cli\u003eGently rock the plug back and forth – never use force\u003c\/li\u003e\n\n\u003cli\u003eIf resistance is met: stop the process and soak again\u003c\/li\u003e\n\n\u003cli\u003eWhile unscrewing, spray \u003cstrong\u003eBrunox Turbo Spray\u003c\/strong\u003e into the thread – with every turn\u003c\/li\u003e\n\n\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Do not use WD-40 – it is not suitable for loosening stuck glow plugs!\u003c\/p\u003e\n\u003ch2 style=\"color: #cc0000;\"\u003eRecommended Penetrating Fluids for BMW Glow Plugs\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e✓ Kano Kroil – best choice\u003c\/li\u003e\n\n\u003cli\u003e✓ Brunox Turbo Spray\u003c\/li\u003e\n\n\u003cli\u003e✓ PlusGas Spray\u003c\/li\u003e\n\n\u003cli\u003e✓ Liquid Wrench Penetrating Spray\u003c\/li\u003e\n\n\u003cli\u003e✓ BG In-Force Penetrating Spray\u003c\/li\u003e\n\n\u003cli\u003e✓ 50\/50 ATF oil and acetone\u003c\/li\u003e\n\n\u003cli\u003e✓ 50\/50 cola and vinegar\u003c\/li\u003e\n\n\u003cli\u003e✗ WD-40 – not suitable!\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #cc0000;\"\u003eInstalling New Glow Plugs – How to Prevent Future Problems\u003c\/h2\u003e\n\u003cp\u003eWhen installing new glow plugs, it is essential to lubricate the thread with \u003cstrong\u003ehigh-temperature ceramic grease\u003c\/strong\u003e. This prevents them from seizing in the cylinder head later on. Conventional copper grease is not suitable for this purpose.\u003c\/p\u003e\n\u003ch2 style=\"color: #cc0000;\"\u003eAfter Glow Plug Replacement – Clearing Error Codes\u003c\/h2\u003e\n\u003cp\u003eAfter replacing the BMW glow plugs, the error codes must be cleared with BMW diagnostic software to ensure proper operation. Use our BMW ISTA or INPA software for this – available for download immediately after purchase.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1032\/4259\/6677\/collections\/bmw_gluehkerzen.webp?v=1786224878","url":"https:\/\/bimerpro.de\/en\/collections\/bmw-gluhkerzen-wechseln-anleitung-bmw-diesel-tipps-2026.oembed","provider":"Bimerpro","version":"1.0","type":"link"}