N53B30
BMW N53B30 Engine
N53B30 Specs
| Manufacturer | Munich Plant |
| Also called | BMW N53 |
| Production | 2007-2013 |
| Cylinder block alloy | Aluminium-magnesium |
| Configuration | Straight-6 |
| Valvetrain | DOHC 4 valves per cylinder |
| Piston stroke, mm (inch) | 88 (3.46) |
| Cylinder bore, mm (inch) | 85 (3.35) |
| Compression ratio | 12 |
| Displacement | 2996 cc (182.8 cu in) |
| Power output | 150 kW (204 HP) at 6,100 rpm 160 kW (218 HP) at 6,100 rpm 190 kW (258 HP) at 6,600 rpm 200 kW (272 HP) at 6,700 rpm |
| Torque output | 270 Nm (200 lb·ft) at 1,500-4,250 rpm 270 Nm (200 lb·ft) at 2,400-4,200 rpm 310 Nm (230 lb·ft) at 1,600-4,250 rpm 320 Nm (240 lb·ft) at 2,750-3,000 rpm |
| Redline | 7,000 rpm |
| HP per liter | 68.1 72.8 86.1 90.8 |
| Fuel type | Gasoline |
| ECU | Siemens MSD80 |
| Weight, kg (lbs) | ~115 (254) |
| Fuel consumption, L/100 km (mpg) -City -Highway -Combined |
for E90 330i 9.9 (23.8) 5.6 (42) 7.2 (32.7) |
| Turbocharger | Naturally aspirated |
| Oil consumption , L/1000 km (qt. per miles) |
up to 1.0 (1 qt. per 750 miles) |
| Recommended engine oil | 5W-30 5W-40 |
| Engine oil capacity, L (qt.) | 6.5 (6.9) |
| Oil change interval, km (miles) | 7,000-10,000 (4,500-6,000) |
| Normal engine operating temperature, °C (F) | ~95 (203) |
| Engine lifespan, km (miles) -Official information -Real |
– ~250-300 (155-185) |
| Tuning, HP -Max HP -No life span loss |
350+ – |
| The engine is installed in | BMW 325i E90 BMW 330i E90 BMW 525i E60 BMW 530i E60 BMW 523i F10 BMW 528i F10 BMW 530i F10 BMW 630i E63 |
BMW N53B30 engine reliability, problems and repair
This 3-liter engine represents N53 series which also includes N53B25. This motor was firstly introduced in 2007 and replaced 3-liter N52B30 engine. New unit has turned out to be modified version of N52 with improved cylinder block head equipped by direct injection. At the same time engineers excluded Valvetronic system which caused a lot of questions. Previous engine control unit was replaced by Siemens MSD81.
N53B30 engine was used in BMW 23i, 25i and 30i models according to their modification.
The epoch of inline 6-cylinder naturally aspirated BMW engines was over in 2013. N53B30 was replaced by straight 6-cylinder turbocharged N55B30 engine.
Base versions of N53B30 were also replaced by 2-liter 4-cylinder turbocharged N20B20 motors.
BMW N53B30 engine modifications and differences
1. N53B30-U0 (2007 – 2011) engine has the following specs: Power – 218 HP at 6,100 rpm, 270 Nm of torque at 2,400-4,200 rpm. It was used for BMW models with 25i index. Power was reduced using ECU and new intake manifold.
2. N53B30 (2010 – 2013) is a new version with the following specs: Power – 204 HP at 6,700 rpm, 270 Nm of torque at 1,500-4,250 rpm. It was used for BMW F10 523i models.
3. N53B30-O0 (2007 – 2013) is a base version with: Power – 272 HP at 6 700 rpm, 320 Nm of torque at 2 750-3 000 rpm. It was used for BMW models with 30i index.
4. N53B30 (2010 – 2009) is a version of engine designed for BMW F10 528i. The specs are as follows: Power – 258 HP at 6,100 rpm, 310 Nm of torque at 1,600-4,250 rpm.
BMW N53B30 engine problems and drawbacks
N53B30 engine has the same problems as in younger version of 2.5-liter N53B25 motor. HERE you can learn detail information about all common problems.
BMW N53B30 engine tuning
N53B30 Chiptuning. Intake manifold
If you are looking for maximum power in this series, you will certainly benefit from N53B30 upgrade. You only need to buy BMW Performance intake manifold for your engine of 218 HP. At the same time you need to install performance exhaust system in order to obtain up to 290 HP which is not so bad.
It is less profitable to upgrade 272 HP modifications. At the same time you will hardly feel improvement in form of extra 10-20 HP. If you are still aimed on upgrading, you need to install performance exhaust system as well as tune ECU. You will certainly enjoy an unforgettable sound of your engine.
