The N53B30 engine is an inline six-cylinder engine developed by BMW. It is characterized by high power, economy and compliance with modern environmental standards. It was produced from 2007 to 2013 and installed in BMW business and premium models.
Characteristics of the N53B30 engine
| Characteristics | Value |
|---|---|
| Manufacturing | Munich Plant |
| Engine make | N53 |
| Years of production | 2007-2013 |
| Cylinder block material | Magnesium-aluminum |
| Power system | Injector |
| Engine type | Ready |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 88 |
| Cylinder diameter, mm | 85 |
| Compression ratio | 12 |
| Engine displacement, cc | 2996 |
| Engine power, hp/rpm | 204/6100 218/6100 258/6600 272/6700 |
| Torque, Nm/rpm | 270/1500-4250 270/2400-4200 310/1600-4250 320/2750-3000 |
| Environmental standards | Euro 5 |
| Oil consumption, gr./1000 km | To 1000 |
| Oil volume in the engine, l | 6.5 |
Engine Application
The N53B30 engine was installed in the following BMW models:
- BMW 325i (E90)
- BMW 330i (E90)
- BMW 525i (E60)
- BMW 530i (E60)
- BMW 523i (F10)
- BMW 530i (F10)
- BMW 630i (E63)
Engine Features
- Direct fuel injection: ensures precise fuel delivery, increasing performance and reducing consumption.
- High compression ratio (12): contributes to increased efficiency and power.
- Magnesium-aluminum cylinder block: reduces engine weight while maintaining strength and durability.
- Euro 5 compliance: guarantees low emissions, making the engine environmentally friendly.
- Power modifications: range from 204 to 272 hp, allowing the engine to be used in various vehicle classes.
Design and repair of the BMW N53B30 engine
A three-liter representative of the N53 family (which included N53B25) appeared in 2007 and replaced the N52B30 of similar volume. The new engine is a reworked N52, in which the piston, cylinder head, direct fuel injection system appeared, the ambiguous Valvetronic valve lift height change system disappeared, and the engine management system was changed to Siemens MSD81.
The N53B30 engine was used in BMW cars with the index 23i, 25i and 30i, depending on the modification.
In 2013, the era of BMW’s atmospheric inline sixes was ended and the N53B30 gave way to the N55B30 inline turbo six, with the younger modifications replaced by the N20B20 twin-leaf turbo four.
Modifications of the BMW N53B30 engine
- N53B30-U0 (2007 – 2011) – the base engine is rated at 218 hp at 6100 rpm, 270 Nm of torque at 2400-4200 rpm. For versions with the index 25i.
- N53B30 (2010 – 2013 model years) – version with 204 hp at 6,700 rpm, 270 Nm of torque at 1,500-4,250 rpm. For BMW F10 523i.
- N53B30-O0 (2007 – 2013) – analog of the base engine with a different, full-fledged intake manifold, power of 272 hp at 6700 rpm, torque 320 Nm at 2750-3000 rpm. For versions with the index 30i.
- N53B30 (2010 – 2009) – version for BMW F10 528i, 258 hp at 6100 rpm, 310 Nm of torque at 1600-4250 rpm.
Problems and disadvantages of BMW N53B30 engines
- The majority of problems with this unit are related to the direct fuel injection system
- Bad gasoline causes the piezoelectric injectors and their fuel injectors to fail quickly
- After prolonged parking, faulty injectors can cause hydrostroke in the engine
- Owners of cars with this engine often change spark plugs and coils
- With mileage over 100,000 km, the Vanos phase control system often requires repair.
Chip tuning. Intake
The most appreciable increase in power can be organized on the younger modifications of the N53B30. For 218-horsepower version it is enough to buy an intake manifold BMW Performance, put a sports exhaust and make chip tuning. As a result, the motor will give out about 290 hp, which is quite a lot.
It is less profitable to refine the modification with 272 forces, and addition in 10-20 hp will not be easy to feel. However, if you really want, you can buy a sports exhaust, flash and enjoy the beautiful sound of the exhaust system.
MOTOR RATING: 4+