BMW N62B44 engine
Content
The power unit of the N62B44 model appeared in 2001. It became a replacement for the engine under the number M62B44. The manufacturer is BMW Plant Dingolfing.
Compared to its predecessor, this unit has several advantages, namely:
- Valvetronic - control system for the phases of gas distribution and valve lift;
- Dual-VANOS - second replenishment mechanism allows you to control the intake and exhaust valves.
Also in the process, environmental standards were updated, power and torque increased.
This unit used an aluminum cylinder block with a cast-iron crankshaft. As for the pistons, they are lightweight, but also made of aluminum alloy.
The cylinder heads were developed in a new way. The power units used a mechanism for changing the height of the intake valves, namely Valvetronic.
The timing drive uses a maintenance-free chain.
Technical specifications
For the convenience of familiarization with the technical characteristics of the N62B44 power unit of a BMW car, they are transferred to the table:
| Name | Value |
|---|---|
| Year of construction | 2001 – 2006 |
| Cylinder block material | Aluminum |
| A type | V-shaped |
| Number of cylinders, pcs. | 8 |
| Valves, pcs. | 16 |
| Piston backlash, mm | 82.7 |
| Cylinder diameter, mm | 92 |
| Volume, cm 3 /l | 4.4 |
| Power, hp / rpm | 320/6100 333/6100 |
| Torque, Nm / rpm | 440/3600 450/3500 |
| Fuel | Gasoline, Ai-95 |
| Environmental standards | Euro-3 |
| Fuel consumption, l/100 km (for 745i E65) | |
| - town | 15.5 |
| - track | 8.3 |
| - funny. | 10.9 |
| Timing type | Chain |
| Oil consumption, gr. / 1000 km | to 1000 |
| Oil type | Top Tec 4100 |
| Max oil volume, l | 8 |
| Filling volume of oil, l | 7.5 |
| Viscosity grade | 5W-30 5W-40 |
| Structure | Synthetics |
| Average resource, thousand km | 400 |
| Engine operating temperature, deg. | 105 |
As for the engine number N62B44, it is stamped in the engine compartment on the right suspension strut. A special plate with additional information is located behind the left headlight. The number of the power unit is stamped on the cylinder block on the left side at the junction with the oil pan.
Analysis of innovations
Valvetronic system. Manufacturers were able to abandon the throttle, while not losing the power of the power unit. This possibility was achieved by changing the height of the intake valves. The use of the system made it possible to significantly reduce fuel consumption at idle. It also turned out to solve the problem with environmental friendliness, exhaust gases comply with Euro-4.
Important: in fact, the damper has been preserved, but it always remains open.
The Dual-VANOS system is designed to change the phases of gas distribution. It changes the timing of the gases by changing the position of the camshafts. Regulation is done by pistons that move under the influence of oil pressure, influencing the gears. By means of a toothed shaft
Malfunctions
Despite the long service life of this unit, it still has weaknesses. If you neglect the rules of operation, the unit will not function correctly. The main faults include the following.
- Increased engine oil consumption. Such a nuisance occurs at the moment when the car approaches the mark of 100 thousand kilometers. And after 50 km, the oil scraper rings need to be updated.
- floating turns. The intermittent operation of the motor in many cases is directly related to worn ignition coils. It is recommended to check the air flow, as well as the flow meter and valvetronic.
- Oil leakage. Also a weak point is the leakage of oil seals or sealing gaskets.
Also, during operation, catalysts wear out, and honeycombs penetrate into the cylinder. The result is bullying. Many mechanics recommend getting rid of these elements and suggest installing flame arresters.
Important: to extend the life of the N62B44 device, it is recommended to use high-quality engine oil and 95th gasoline.
Car options
The BMW N62B44 engine can be mounted on the following makes and models of vehicles:
| Mark | Model |
|---|---|
| BMW | 545i E60 645i E63 754 E65 X5 E53 |
| Morgan | Aero 8 |
Unit tuning
If the owner needs to increase the power of the BMW N62B44 power unit, then there is one reasonable way - this is mounting a whale compressor. It is recommended to purchase the most popular and stable one from ESS. The process is just a few steps.
Step 1. Mount on a standard piston.
Step 2. Change the exhaust to a sporty one.
At a maximum pressure of 0.5 bar, the power unit produces about 430-450 hp. However, with regard to finances, it is not profitable to carry out such a procedure. It is recommended to purchase immediately V10.
Compressor Advantages:
- ICE does not require modification;
- the resource of the BMW power unit is maintained with moderate inflation;
- speed of work;
- increase in power by 100 hp;
- easy to dismantle.
Compressor Disadvantages:
- there are not so many mechanics in the regions who can correctly install the element;
- Difficulties in acquiring a used part;
- difficult search for consumables in the future.
Please note: if you do not know how to mount the kit, it is recommended to contact a specialized service center. Employees of the service station will carry out this operation quickly and efficiently.
Also, the owner can carry out Chip tuning. It is used to improve the factory settings of the electronic control unit (ECU).
Chip tuning allows you to change the following indicators:
- increasing the power of the internal combustion engine;
- improved acceleration dynamics;
- reduced fuel consumption;
- fix minor ECU bugs.
The chipping process takes place in several stages.
- The motor control program is being read.
- Specialists introduce changes to the program code.
- Then it is poured into the computer.
Please note: manufacturers do not practice this procedure because there are strict limits on exhaust gas ecology.
Replacement
As for replacing the N62B44 power unit with another one, there is such an opportunity. Can be used like its predecessors: M62B44, N62B36; and newer models: N62B48. However, before installation, you need to get advice from qualified specialists, and also seek help in installing them.
Availability
If you have a need to purchase a BMW N62B44 engine, then this will not be difficult. This ICE is sold in almost every major city. Moreover, you can visit popular automotive websites and find the right product there at affordable prices.
Price
The price policy for this device is different. It all depends on the region. On average, the cost of a used contract ICE BMW N62B44 varies between 70 - 100 thousand rubles.
As for the new unit, its cost is about 130-150 thousand rubles.
Owner feedback
BMW brand cars, which are mounted with similar engines, are popular in our country. Therefore, there are a lot of reviews and the unit. However, all owners suffer from fuel consumption per 100 km. Despite the fact that manufacturers indicate a figure of 15.5 liters, in practice, transport with this engine consumes about 20 liters. And this cannot but alert, given the rise in gasoline prices.
Also, many owners are not satisfied with the resource of the unit, or rather the service life of its component parts. In most cases, the cylinders are affected.
But the internal combustion engine has N62B44 and pluses. Almost all owners are completely satisfied with the power of the motor. And with proper maintenance, the device does not fail. Only oil and consumables have to be changed.
In general, the engine is not bad enough, but before you buy it, be prepared for the fact that you will have to spend a lot on gas and regular maintenance.
