BMW M53D30TUTOP engine

The M53D30TUTOP is a three-liter powertrain capable of developing a maximum output of up to 272 horsepower, thanks to the installation of twin turbos. The engine can be found under the hood of the fifth-generation BMW 5-series E60 and E61.

Engine specifications M57D30TUTOP

Advantages

The year 2003 was marked by the appearance of the M53D30TUTOP power unit, which began to be installed under the hood of legendary cars from the Bavarian manufacturers. The working volume of these engines is a little short of 3 liters. Such indicators engineers achieved thanks to the use of a crankshaft, which provides increased stroke of the piston in 90 millimeters.

This modification of the engine is the most powerful in its M57 range. Thanks to the use of a pair of turbines it was possible to achieve such indicators of maximum power. The turbines differed in impeller size, and BorgWarner KP39 and K26 were used as superchargers, which provided an operating pressure of 1.85 bar. Combined with a compression ratio of 16.5, this results in maximum performance.

All engines included in this range are equipped with a standard system that provides electronic adjustment of the impeller geometry on the supercharger. The standard power supply system is the well-known Common Rail diesel direct injection system. Also, the designers have achieved the maximum amount of blown air, thanks to the installation of a standard intercooler.

The operating temperature of the power unit is monitored through the use of electronic sensors. The fuel supply system is equipped with a piezoelectric injector, which allows the necessary amount of fuel to be delivered to the combustion chamber depending on the specific situation. This allows to obtain positive qualities in the form of minimum fuel consumption, as well as the minimum amount of harmful substances emitted into the atmosphere.

The engines began to meet more stringent requirements with regard to the emission of harmful substances into the atmosphere. Therefore, the Bavarian designers had to use the well-known vortex flaps located in the intake manifold. The system works in such a way that when the crankshaft rotates at low speeds, the flaps close one of the intake channels. As a result, greater combustion efficiency is achieved as the mixture is better formed.

Disadvantages

Swirl flaps are characterized not only by positive qualities, but also bring to the owners of cars with such power units under the hood certain difficulties. It’s all about the fact that the design is not ideal, and during operation, the flaps can fall off and get into the engine. This leads to the fact that the motor completely fails, and it is necessary to make major repairs. To avoid such malfunctions, it is best to remove the flaps, and plug their mounting points. To ensure normal operation, the software will have to be adjusted for correct response.

Strong knocking and extraneous noises during engine operation is also a characteristic problem for owners of cars with such engines. The crankshaft damper is the main cause of such a problem. It is necessary to check the condition of the unit, and if necessary, replace it with a new one.

The engine may abruptly lose maximum power, and the cabin begins to smell exhaust fumes. This is a characteristic problem complained of by almost all owners of cars with such motors. The reason is the formation of a crack in the intake manifold. You will have to replace it with a new one. It is recommended to choose a node from the standard modification of the power unit M57D30, since it is cast from a high-quality cast iron alloy.

There are no special problems with fuel injectors on such motors, but this unit will not pass more than 100 thousand kilometers. Turbines do not cause problems to owners either. If you use only high-quality and original lubricants, the resource of the turbine can exceed 400 thousand kilometers. Pouring bad oil into the car is not recommended, as the resource can be greatly reduced.

These engines are considered to be of high quality and one of the most reliable. In case of competent operation, timely maintenance and use of high quality oil and fuel, there are no serious problems. It is necessary to choose the diesel very carefully, otherwise the components of the power system can quickly fail. In good hands, the resource of M53D30TUTOP can exceed the figure of 500 thousand kilometers without the need for major repairs.

Technical specifications

The exact displacement of the inline six-cylinder diesel engine is 2993 cubic centimeters. The diameter of the cylinders used is 84 millimeters. Four valves are installed on each cylinder. The piston strokes 90 millimeters, which allows a compression ratio of up to 16.5 to 1.

During operation of the power unit, up to 178 grams of harmful substances are emitted into the environment for every kilometer traveled. The M53D30TUTOP consumes about 8 liters of diesel for every 100 kilometers.

Thanks to the twin-turbocharger setup, a maximum output of 272 horsepower at 4.4 thousand rpm can be captured. Peak torque is reached at 2,250 rpm and amounts to 560 Nm.

This engine is installed on the following models:

BMW 5-Series (E61)

BMW 5-Series (E60)