Characteristics of the N57D30 engine
| Characteristics | Value |
|---|---|
| Manufacturing | Steyr Plant |
| Engine brand | N57 |
| Years of manufacture | 2008-present |
| Cylinder Block Material | aluminum |
| Engine type | diesel |
| Configuration | row |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 90 |
| Cylinder diameter, mm | 84 |
| Compression ratio | 16.5 |
| Engine displacement, cc | 2993 |
| Engine power, hp/rpm | 204/4000, 245/4000, 258/4000, 306/4400, 313/4400, 381/4000-4400 |
| Torque, Nm/rpm | 450/1750-2500, 540/1750-3000, 560/1500-3000, 600/1500-2500, 630/1500-2500, 740/2000-3000 |
| Environmental regulations | Euro 5, Euro 6 |
| Turbocharger | Garrett GTB2260VK, Garrett GTB2056VZK, BorgWarner K26 + BV40, 2x BorgWarner BV45 + B2 |
| Fuel consumption, l/100 km | (for 530d F10) |
| – city 6.4 | |
| – highway 4.9 | |
| – mixed. 5.4 | |
| Oil consumption, gr./1000 km | to 700 |
| Engine oil | 5W-30, 5W-40 |
| How much oil in the engine, liters | 6.5, 7.2 (N57S) |
| Oil change is carried out, km | 7000-8000 |
| Engine operating temperature | – |
| Engine life, thousand kilometers | in practice 300+ |
| Tuning, hp | potential 300+ |
| Motor installed | BMW 325d/330d/335d E90/F30, BMW 430d/435d F32, BMW 525d/530d/535d/M550d F10, BMW 640d F13, BMW 730d/740d/750d F01, BMW X3 F25, BMW X4 F26, BMW X5 E70/F15, BMW X6 E71/F16, Range Rover |
The Steyr factory has been producing N57 brand engines from the beginning of 2008 to the present day. These diesel units have an in-line configuration with six cylinders and four valves per cylinder. The cylinder block is made of aluminum.
The specifications of the N57 engine vary from model to model. For example, the engine displacement is 2993 cubic centimeters. Engine power can be from 204 to 381 horsepower, and torque can be from 450 to 740 Nm.
The environmental standards correspond to Euro 5 and Euro 6 levels. Turbochargers from brands such as Garrett and BorgWarner are used to increase performance.
Fuel consumption for the 530d F10 model is 6.4 liters per 100 km in the city, 4.9 liters per 100 km on the highway and 5.4 liters per 100 km in mixed mode. Oil consumption does not exceed 700 grams per 1000 km.
Recommended oil types for the N57 engine are 5W-30 and 5W-40. The volume of oil in the engine is 6.5 liters, and for the N57S model – 7.2 liters. It is recommended to change the oil every 7000-8000 km.
There is no information about engine weight and operating temperature. According to the factory the engine resource is not specified, but in practice it can reach more than 300 thousand kilometers.
Reliability, problems and repair of the BMW N57 engine
The year 2008 was the time of release of a new inline 6-cylinder turbodiesel N57, which was intended to replace the popular M57 in BMW models. The new engine had an aluminum cylinder block with cast iron liners and 91 mm cylinder spacing, as well as a forged crankshaft with a piston stroke of 90 mm, cylinder diameter of 84 mm and piston height of 47 mm, which provided a displacement of 3 liters.
The N57 cylinder head was made of aluminum and slightly lower than its predecessor, the M57. This engine features twin camshafts and 4 valves per cylinder, and the intake valves are 27.2 mm in diameter and the exhaust valves are 24.6 mm in diameter.
To improve pedestrian safety and increase the distance between the engine and the hood, the timing drive was moved to the rear of the engine.
N57 is equipped with a single-row timing chain, which lasts longer than its 4-cylinder counterpart N47 and has a service life of more than 200 thousand kilometers. This engine meets Euro-5 environmental standards.
Common Rail injection system of the third generation, CP 4.2 fuel injector and turbocharger with intercooler are all used on the N57. A Garrett GTB2260VK variable geometry turbine provides boost up to 1.65 bar.
The N57 uses an intake manifold with swirl flaps and an EGR system. The engine is controlled by a Bosch DDE7.3 ECU.
In 2009, BMW 740d cars with N57 TOP version of the engine were released. They had an improved exhaust, piezo injectors and a two-stage turbocharging system.
In 2011, the production of refined versions of N57TU diesels began, which became more economical and complied with Euro-6 environmental standards.
In 2012, the top version N57TU Super or N57S with a reinforced cylinder block, new pistons, modified cooling system and three-stage supercharger, providing power up to 381 hp and torque up to 740 Nm.
A related 4-cylinder diesel engine N47 was also produced in parallel with the N57.
From 2015, the N57 began to be replaced by the newer B57 diesel engines.
BMW BMW N57D30 engine options
- N57D30O0 (2008 – 2014) is the first version of the N57 diesel engine. The power output is 245 hp at 4000 rpm and 540 Nm of torque at 1750-3000 rpm. This motor was installed in BMW 530d F10 and F07, 730d F01, as well as X5 E70 and X6 E71. For the BMW 325d E90, torque has been reduced to 520 Nm.
- N57D30U0 (2010 – 2013) is the weakest version of the N57 with a Garrett GTB2260VK turbo. The power output of this engine is 204 hp at 4000 rpm and 450 Nm of torque at 1750-2500 rpm. It was installed in the BMW 325d E90 and 525d F10, before being replaced by the 4-cylinder N47.
- N57D30T0 (2009 – 2014) is the most powerful version of the N57 engine, replacing the M57TU2 TOP. It develops 306 hp at 4400 rpm, 600 Nm of torque at 1500-2500 rpm. This motor was put on the BMW X6 E71, X5 E70 and 740d F01. For the 535d F10 and 535d GT F07, power is reduced to 299 hp
- N57D30O1 (2011 – present) – engine from the N57TU series, replacing the N57D30O0. Power is 258 hp at 4000 rpm, torque of 560 Nm at 1500-3000 rpm. This modification is installed in BMW 530d F10/F07, 730d F01, 330d GT F34, 330d F30, 430d F32, X3 F25, X4 F26, X5 F15 and X6 F16.
- N57D30T1 / N57TU (2011 – present) is the replacement for the N57D30T0 model. Power of this version reached 313 hp at 4400 rpm, and torque of 630 Nm at 1500-2500 rpm. This engine is fitted to the 335d F30, 335d GT F34, 435d F32, 535d F10, 535d GT F07, 640d F13, 740d F01, X3 F25, X4 F26, X5 F15 and X6 F16.
- N57D30S1 (2012 – present) – N57 engine with three turbines that provide 381 hp at 4000-4400 rpm and 740 Nm of torque at 2000-3000 rpm. Such engine is installed in BMW M550d F10, 750d F01, as well as X5 F15/E70, X6 F16/E71 cars with the designation M50d.
Problems and disadvantages of BMW N57 engines
Vortex damper system
Unlike the M-series engines, here the swirl flaps cannot enter the engine, but can get stuck due to coke buildup, leading to erratic operation and errors. Problems can be caused by the EGR valve, which requires periodic cleaning or programmed removal, as the manifold can become completely clogged with dirt at around 100k miles.
Noises and extraneous sounds
Like the N47 engine, the crankshaft damper also fails early (after about 100 thousand km) and needs replacement. After 200 thousand kilometers, the appearance of extraneous sounds from the rear of the motor indicates the need for attention to the timing chain, it may be necessary to replace it.
The turbine resource is normal and is about 200 thousand kilometers or more. In order for the engine to work long and without problems, you should change the oil regularly, use quality oil and fuel, as well as regular maintenance. If these conditions are met, the life of the N57 engine can exceed 300 thousand kilometers.
Tuning of BMW N57 engine
Chip tuning
Simple versions of the N57 series motor with a single turbo (204 hp and 245 hp) can be chipped to 300 hp with a single control unit firmware or to 320 hp with the installation of a downpipe. N57TU modifications give 10-15 hp more. These are the most suitable engines for tuning.
Power of N57 diesel with two turbines can be increased to 360+ hp after flashing and installation of downpipe. N57TU variants can reach around 380hp with a similar kit.
The most powerful and advanced N57S diesel engine can achieve 440 hp and 840 Nm with firmware and downpipe.