BMW 650i Engine

BMW 650i Engine – Complete Information

The BMW 650i is a petrol engine with two turbochargers that has been in production since 2008. The turbochargers are position inside the engine, making it the world’s first production vehicle engine to use a turbocharged engine. The 650i engine is power up by a 445-horsepower twin-turbocharged 4.4-liter V8 engine. The 650i engine can go from 0 to 60 mph in under 4.5 seconds with its V8. An eight-speed automatic gearbox is standard on the 650i. It works nicely with the engine, offering smooth shifts and gladly downshifting when more power is require.

BMW’s Driving Dynamics Control allows the 6-Series to experiment with its driving mode. From Sport plus to Comfort modes, each with its own shift, throttle, steering, and suspension pre-sets, it’s their take on driver-adjustable controls. We will be discussing the BMW 650i engine.

Table of Content

  • Specifications of BMW 650i Engine
  • Problems of BMW 650i Engine
    • Coolant System for the Engine
    • Leaky Oil Filter Gasket
    • 650i Valve Stem Seal
    • Conclusion

Specifications Of BMW 650i Engine

  • Engine Type:- Intercooled Turbo Premium Engine
  • Required Fuel:- Unleaded I-6
  • Displacement:- 4.4 Liter V8
  • Fuel System:- Gasoline Direct Injection
  • Maximum Horsepower @ RPM :- 445 @ 5800
  • Maximum Torque @ RPM :- 650 @ 1750
  • Number of Transmission Speed:- 8 Speed Automatic

Problems Of BMW 650i Engine

The BMW 650i needs a regular checkup because of the problems it facing for such a long time. There is some issue which can be resolved just by looking out for the Engine properly and maintaining the Engine properly. Here are some of the most common issues of BMW 650i Engine:-

Coolant System for the Engine

The coolant system is one of the most crucial components of any vehicle since it keeps the engine cool and prevents it from overheating. However, 650i’s coolant systems have a tendency to malfunction which can lead the car to stop while driving.

The BMW’s coolant system is made up of numerous components, each of which is prone to failure after 80,000 to 120,000 miles of driving. Because it is such an unusual problem, the coolant transfer pipe leak is nearly difficult to believe. The front seal on the coolant transfer pipe, which is a position under the intake valley pan, is usually the source of this leak. Because of its placement in the engine, the timing cover, timing chain, intake manifold, and cylinder heads must all be remove.

Leaky Oil Filter Gasket

Another weak area is the gasket that links the oil filter to the BMW 650i engine. This gasket, which connects the oil filter to the moving components that require oil, frequently leaks. Less oil in the engine causes more wear and tear, as well as other technical issues. The gasket that links the oil filter to the engine of a BMW can become brittle over time, but if the problem is detect early enough, it can be resolve. If it is neglected so it can cause a major problem with the Gasket.

Oil Leaks

BMW 650i’s one of the major problems is of Oil leakage and it is a major problem in most of the engines. Leaking oil is one of the most prevalent problems, and it appears to impact the BMW 650i Engine more than any other model of that series. These leaks can be cause by problems with the camshaft seals, valve cover gaskets, and front and rear crankshaft seals, among other elements of the engine.

650i Valve Stem Seal

These seals are in charge of keeping oil from leaking into the combustion chamber from the cylinder head. Valve stem seals also regulate the lubrication of the intake and exhaust valves. 650i’s valve stem seals are composed of a substandard material that deteriorates and becomes brittle with time. The valve stem seals eventually develop cracks, allowing oil into the combustion chamber. The leftover oil that remains on the heads causes smoke on a cold start. When the engine starts, the standing oil is drawn into the cylinder, creating smoke as the oil is burned off.

The oil leaks through the defective seals when the throttle is pushed, causing the exhaust to smoke as the oil burns away. Excessive quantities of blueish-white smoke are generally produced by faulty valve stem seals, which can get worse over time as the seals wear out. Of course, when the engine burns away the oil entering the combustion chambers, the 650i’s oil consumption will grow.


We’ve gone over all of the BMW 650i Engine’s specs and features. With a 4.4 Liter turbocharged engine, it is a strong powerplant. 650i was the first engine installed by BMW. It also has a few issues, such as coolant and oil leaks. Apart from that, it is a highly strong engine that was well-known when it was first introduced due to its performance.

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