BMW N62B44 engine

Let’s consider the technical characteristics of the N62B44. This engine N62B44 was produced at Plant Dingolfing. Development began in 2001, and ended in 2006. The cylinder block was completely made of aluminum, as a power supply system was installed the well-known injector. The power unit was made in the form of the letter V and had 8 cylinders. Each of them again had 4 valves, which clearly performed their work. The stroke of the piston here is equal to 82.7 millimeters, but the cylinder diameter was 92 millimeters, which is a very impressive size. The compression ratio in this version of the engine BMW N62B44 varies from 10 to 10.5. The volume of the device is equal to 4.4 liters. But its power at 6100 rpm can vary from 320 to 333 horsepower. The maximum torque at 3500 rpm will be 450 N*m, and at 3600 rpm it reaches only 440 N*m. Many drivers ask what kind of gasoline to put in the tank.

In the N62B44 engine it is recommended to use at least 95 grade gasoline. Environmental standards Euro 3 or no-rolling allow at least a little protection of the environment from pollution. Weighs a whole such engine about 213 kilograms. Gasoline consumption in it on a normal highway will be 8.3 liters per 100 kilometers. In mixed territory, this figure will increase to 10.9 liters, and in urban conditions it will reach 15.5 liters per 100 kilometers. The oil is spent in this case in the amount of less than 1000 grams per 1000 kilometers. N62B44 engine can be filled with 5W-40 or 5W-30 oil. At the same time there are about 8 liters of oil in the power unit. Oil pressure sensor N62B44 appeared for the first time. Its replacement is carried out somewhere once in 7-10 thousand kilometers. But the operating temperature of the engine is about 105 degrees Celsius. In practical conditions, the engine resource is equal to more than 400 thousand kilometers.

And with tuning, its power can be raised to 600 horsepower and even higher.

N62B44 engine specifications

Advantages

This series of V-shaped engines started appearing back in 2001, when the developers decided to replace the predecessors with it. It has received a huge number of innovations, Valvetronic N62B44 and dual Vanos are only part of these innovations. Environmental performance has also received good improvements, power and maximum torque have been improved.

The N62B44 firmware underwent some changes, but this one stood out among other types of BMW firmware. The cylinder block was now made of aluminum, the crankshaft was made of cast iron, and the pistons were lightweight because they were developed from an aluminum alloy. Forged connecting rods did not interfere in any way with the complete design. New gaskets were used for the cylinder head, the thickness of which was slightly changed. Piston N62B44 works at the highest level. There were modern heads in the cylinder block. The system that changed the height of the intake valves appeared for the first time. The HVAC on the N62B44 worked perfectly. Something similar happened with the system that changed the gas distribution phase setting of the exhaust and intake shafts. The N62B44 crankcase ventilation system works well and consistently. The camshafts were made of cast iron, the phase and lift were completely changed in order to improve the parameters. The diameter of the intake and exhaust valves have also become slightly edited to improve the ride quality. Oil pressure improved because of the better positioning of the unit itself.

The timing drive does not maintain the chain at all. The N62B44 timing marks do not wear out over time and stay on for years to come. The intake manifold used a variable length to fit the rest of the design more. At low rpm, the maximum length is used. The latest control system from renowned manufacturer Bosch turned out to be high quality. The N62B44 camshaft sensor was designed to stabilize the machine at high rpm. The apparatus is installed on cars with the index 45i. In addition, on the basis of this engine, another model was produced, which had 3.6 liters. But in 2006, the motor with 4.4 liters was completely replaced by a modern improved one, which was produced in previous years. Its 4.8 liters created a little more power, with which the predecessor was forced out of the market. Nevertheless, the above powertrain is rated as almost excellent by motorists.

Disadvantages

Let’s take a closer look at the problems of N62B44. First, this engine begins to consume a lot of oil. Usually such a problem can begin after 100 thousand kilometers of distance, and its cause can be oil caps that are removed. Also, the oil pump can be to blame. Replacement of oil caps on N62B44 is not uncommon. Removable oil rings go out of action in the next 100 thousand kilometers of mileage.

N62B44 reviews show that the engine revolutions float. Unstable engine operation is often associated with the fact that the ignition coils break. In the case of timely inspection and replacement, such problems do not occur. Other causes of such a phenomenon can be a flow meter, air suction, Valvetronic. Sometimes the tube at the back of the motor leaks. This happens because of the fact that there is viscosity at low speeds or when the car is started cold.

Oil may be leaking. The crankshaft oil seal or the gasket for the seal on the generator housing could be to blame. Once these parts are replaced, 99 percent of the time the problems will go away. The timing chain on the N62B44 is not replaced as often as on previous versions.

Reviews on N62B44 problems show that the N62B44 trots. Owners immediately have a question how to determine which cylinder is trotted on the BMW N62B44. This can be easily checked with a maintenance check. Catalysts can still break because of the ingress of their honeycomb into additional cylinders, this happens after 100 thousand kilometers of mileage. Because of this, scoring can occur. In the case of removal of catalytic converters and installation of flame dampers, such problems may not be. It should also be said that the N62B44 has floating revolutions + when accelerating, the car can often switch to another speed. Oil should be poured that is recommended by the developers, in this case, the resource can be increased, and the number of problems will be significantly reduced. With regular maintenance, the stability of the motor will please drivers and passengers.

Chip Tuning

Often motorists have questions about whether to chip or not and what kind of plugs to put in order to improve the performance of the engine. There is only one correct method to increase the power on such a motor. The use of a compressor kit can help very well, you just need to buy a working known kit from popular developers. It is best to use the existing piston, but the exhaust is better to install from sports models of BMW. The maximum pressure of half a bar will help the power unit to show from 430 to 450 horsepower. But the modern cost of these options will not benefit the owners of such systems. The best solution will be to buy another car.

Some drivers also use thin tube connections on the BMW N62B44. Of course, this option won’t help add too much horsepower to get record-breaking power, but will be a nice cheap alternative to more bulky options.

Modifications

This unit has almost no known modifications, which would be very different or help to change the parameters of the car. But there is a pretty good modified model, which was produced from 2004 to 2006. In it, the compression ratio was 10.5, which is quite a good figure. The power of this power unit is equal to 333 horsepower at 6100 rpm. But the maximum torque will be at the level of 450 N*m at 3500 rpm.

Bottom line

The main advantage of the compressor, which is used in the above-described engine drivers consider that the internal combustion engine does not need special modification. In addition, the resource of the engine itself with not the largest supercharger will be preserved and will not change. Work on it is carried out very quickly, and the replacement of parts can be done even by the owners. The standard power can increase by more than 100 horsepower, which will greatly please racers. Dismantling of these power units has a very simple structure and system.

But the main disadvantage of compressors is considered to be a small number of service centers and service stations, which can correctly carry out the replacement or installation of any elements. Previously used parts are quite problematic to buy on the modern market, they are not so popular or drivers simply do not want to part with quality elements. Consumables for the car is also difficult to find nowadays. If you do not know how to mount whales, you need to go to the right service center, which is not so many in the cities of the country. Nevertheless, the employees of these service stations carry out such work in a short time and very well.

Tuning and chipping will give you the opportunity to increase the power of the internal combustion engine by several points. The acceleration dynamics in this case will be improved, and the driving stability will also increase significantly. Very important will be the fact that gasoline consumption will decrease and the owner of the car will be able to save a little money. Some errors in ECU operation can be avoided or simply not noticed. Chipping starts with reading a special program of power unit control. The program code is modified by special professionals. Then the program will be ready for pouring into ECU and full start-up.

There is one more peculiarity. Tuning is not practiced in factories that develop these motors. This is because there are rules, according to which it is impossible to use some parts in view of the established environmental standards. Exhaust gases from such procedures will pollute the air very much.

This engine is installed on the following models:

BMW 5-Series (E61)

BMW 5-Series (E60)

BMW 6-Series (E64)

BMW 6-Series (E63)

BMW 7-Series (E65)

BMW X5 (E53)