Engine Systems & Internals

BMW B58 Engine — Complete Technical Guide Overview The B58 is BMW's modular 3.0-liter single-turbocharged inline-six, introduced in 2015 as the successor to the N55. It…

BMW N55 Engine — Complete Technical Guide Overview The N55 is BMW's 3.0-liter single-turbocharged inline-six that replaced the twin-turbo N54 starting in 2009. It introduced…

BMW S85 V10 — The F1-Inspired M5 Engine Overview The S85 is a 5.0-liter naturally aspirated V10 that powered the E60 M5 and E63/E64 M6 from 2005-2010. It was directly inspired by…

BMW N20 Engine — Technical Guide & Timing Chain Issue Overview The N20 is BMW's 2.0-liter turbocharged four-cylinder, produced 2011-2017. It replaced the naturally aspirated N52…

BMW S58 Engine — The G80 M3/M4 Twin-Turbo Powerhouse Overview The S58 is BMW M's latest 3.0-liter twin-turbocharged inline-six, debuting in the X3M/X4M (2019) and then the G80…

BMW B48 Engine — The Modern Four-Cylinder Turbo Overview The B48 is BMW's modular 2.0-liter turbocharged four-cylinder, replacing the N20 from 2015 onwards. Part of the same…

BMW Oil Specifications — LL-01, LL-04, and What to Use BMW Longlife Specifications BMW has specific oil approval standards. Using the wrong oil can damage your engine or DPF…

BMW Spark Plug Replacement Guide Spark plugs are one of the most overlooked maintenance items on BMWs. Here's everything you need to know. Replacement Intervals | Engine |…

BMW N52 Engine — The Last Naturally Aspirated Inline-Six Overview The N52 is BMW's naturally aspirated 3.0-liter inline-six, produced from 2004 to 2015. It was the first BMW…

BMW S55 Engine — The M3/M4 Powerplant Explained Overview The S55 is BMW M's 3.0-liter twin-turbocharged inline-six, powering the F80 M3 and F82/F83 M4 from 2014 to 2018. It's…

How to Read BMW Engine Codes BMW engine codes look like random letters and numbers, but they follow a logical system. Once you understand it, you can decode any BMW engine at a…

Valvetronic: Why BMW Ditched the Throttle Body Most engines use a throttle body to control airflow. BMW said "we can do better" and invented Valvetronic — a system that controls…

BMW M62 V8 — The Classic V8 Overview The M62 is BMW's 3.5/4.4-liter V8, produced 1996-2003. It powered the E39 540i, E38 740i, and E53 X5 4.4i. Known for smooth power delivery…

How Much Does BMW Maintenance Really Cost? The internet loves to scare people about BMW ownership costs. Let's look at the real numbers. Average Annual Cost According to industry…

BMW Oil Consumption — Normal vs Problem Your BMW uses oil between changes. But how much is too much? What BMW Says BMW officially considers oil consumption of up to 1 liter per…

BMW N57 Diesel — The 3.0L Six-Cylinder Turbodiesel Overview The N57 is BMW's 3.0-liter inline-six turbodiesel, produced 2008-2020. It's the diesel counterpart to the N55 petrol…

BMW B38 Three-Cylinder — The Tiny Turbo Overview The B38 is BMW's 1.5-liter turbocharged three-cylinder, part of the modular engine family. It shares the 500cc-per-cylinder…

BMW N63 V8 — The Hot-Vee Twin-Turbo and Its Problems Overview The N63 is BMW's 4.4-liter twin-turbocharged V8, introduced in 2008. It pioneered the "hot-vee" layout…

BMW M54 Engine — The Bulletproof Inline-Six Overview The M54 is BMW's naturally aspirated inline-six produced from 2000-2006. It's the successor to the legendary M52 and is known…

BMW N46 Engine — Budget Four-Cylinder with Valvetronic Overview The N46 is BMW's 2.0-liter naturally aspirated four-cylinder with Valvetronic, produced 2004-2011. It powered…

BMW M52 Engine — The Smooth Operator Overview The M52 (1994-2000) and M52TU (1998-2000) are BMW's aluminum-block inline-sixes that powered the E36 and E39 generations. Known for…

BMW S63 V8 — The M5/M8 Twin-Turbo V8 Overview The S63 is BMW M's 4.4-liter twin-turbocharged V8, used in M5, M6, M8, X5 M, and X6 M from 2009 onwards. It's the hot-vee successor…

How to Change Your BMW Oil at Home An oil change is the single most important maintenance item on your BMW. Here's how to do it yourself and save €100-200 every time. What You…

What Oil Should I Use in My BMW? This is one of the most asked questions in the BMW community, and there's a lot of bad advice out there. Let's settle it. The Short Answer Petrol…