BMW E39 540i M62B44 4.4L V8 petrol engine

BMW E39 540i M62B44 4.4L V8 petrol engine

Specifications and Compatibility

 BMW E39 540i M62B44 4.4L V8 petrol engine is one of BMW’s most iconic naturally aspirated V8 powerplants, known for its smooth performance, refined sound, and impressive long-term durability. Built as part of BMW’s legendary M62 engine family the M62B44 delivers strong mid-range torque, excellent highway performance, and an exceptionally smooth driving experience making it a favorite among enthusiasts and collectors. 

Engineered with an aluminium block and aluminium-silicon alloy cylinder liners, this 4.4-liter V8 is designed for a perfect balance of power and efficiency. For customers searching for a reliable, high-quality replacement engine for restoration or performance builds, the M62B44 remains one of the most desirable engines from the BMW E39 era.

The M62B44 V8 engine is primarily compatible with the BMW E39 540i (1996–2003), available in both sedan and Touring variants. It is also found in other BMW models of the same era, including the E38 740i/740iL, the E53 X5 4.4i, and the E31 840Ci, depending on the production year and engine management system. This wide compatibility makes the engine suitable for OEM replacements, restoration projects, and V8 swaps. With its strong aftermarket support and availability of parts, the M62B44 remains a popular choice in the used engine market.

Common weaknesses and Maintenance.

In terms of specifications, the M62B44 displaces 4,398 cc, producing approximately 282–290 horsepower and 420 Nm of torque depending on the model year and whether the engine uses the earlier M62 or the updated M62TU (Technical Update) configuration. It features double-VANOS variable valve timing on TU versions, a Bosch ME7.2 engine management system, sequential fuel injection, and a high-flow intake system for improved throttle response. The engine’s lightweight aluminium construction enhances handling characteristics while maintaining the durability expected from a BMW V8.

Although the M62B44 is well-known for its reliability, it does have several common weaknesses. The most frequent issue is timing chain guide wear, which can cause rattling and, if ignored, lead to severe internal damage. Valve cover gasket leaks and oil filter housing leaks are also common as the engine ages. The cooling system, including the water pump, radiator, and thermostat, tends to degrade over time, making proactive maintenance essential. Additionally, the PCV plate (breather plate) can fail, causing vacuum leaks and increased oil consumption.

To ensure long-lasting performance, regular maintenance is key. Frequent oil changes using high-quality synthetic oil, timely cooling system overhauls, and proactive replacement of timing chain guides are highly recommended. With proper care, the BMW M62B44 4.4L V8 engine delivers exceptional reliability, smooth power delivery, and the timeless driving character that defines the BMW E39 540i.