N62B48
BMW N62B48/N62TUB48 Engine
N62B48 Specs
| Manufacturer | BMW Plant Dingolfing |
| Also called | BMW N62 |
| Production | 2003-2010 |
| Cylinder block alloy | Aluminum |
| Configuration | V8 |
| Valvetrain | DOHC 4 valves per cylinder |
| Piston stroke, mm (inch) | 88.3 (3.48) |
| Cylinder bore, mm (inch) | 93 (3.66) |
| Compression ratio | 11 10.5 |
| Displacement | 4799 cc (292.9 cu in) |
| Power output | 265 kW (360 HP) at 6,200 rpm 270 kW (367 HP) at 6,300 rpm |
| Torque output | 500 Nm (369 lb·ft) at 3,500 rpm 490 Nm (361 lb·ft) at 3,400 rpm |
| Redline | 6,500 rpm |
| HP per liter | 75 76.5 |
| Fuel type | Gasoline |
| ECU | Bosch DME ME9.2.2 |
| Weight, kg (lbs) | – |
| Fuel consumption, L/100 km (mpg) -City -Highway -Combined |
for E65 750i 16.9 (13.9) 8.3 (28.3) 11.4 (20.6) |
| 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.) | 8.0 (8.45) |
| Oil change interval, km (miles) | 7,000-10,000 (4,500-6,000) |
| Normal engine operating temperature, °C (F) | ~105 (220) |
| Engine lifespan, km (miles) -Official information -Real |
– 400+ (250) |
| Tuning, HP -Max HP -No life span loss |
500+ – |
| The engine is installed in | BMW 550i E60/E61 BMW 650i E63/E64 BMW 750i/750Li E65/E66 BMW X5 E53 BMW X5 E70 Morgan Aero 8 |
BMW N62B48 engine reliability, problems and repair
In 2005 the largest N62 V8 was produced to replace the engine N62B44. Along with this, the engine N62B48 (N62TU) is the successor of the M62B46 (Alpina). To update the engine the diameter of pistons in the cylinder was extended to 1 mm. Also the steel crankshaft with 88.3 mm piston stroke was installed. The width of the new connecting rods was diminished to 18 mm.
The cylinder heads N62TU were made of another material – silumin. Cylinder heads were somewhat changed: the combustion chambers were updated, and the exhaust ports were adjusted to the new exhaust manifold with bigger diameter. The specs of the N62B48 camshafts are the following: duration 282/254 deg, lift 0.3-9.85/9.7 mm. The diameter of the valves is similar to the N62B44. The new variable-length intake manifold with two-stage DISA was applied.
The engine control unit is Bosch DME ME 9.2.2.
The engine N62B48 was used on the models BMW 50i.
Since 2005 on base of the N62B48 the junior variation N62B40 was produced also. However, in 2008 it was replaced by the new turbocharged engine BMW N63B44. While the engine N62TU has become the last naturally aspirated V8 of BMW.
BMW N62B48 engine problems and issues
Possible malfunctions, problems and disorders of the N62TU are similar to the ones of the N62B44, you can read about them HERE.
BMW N62 B48 engine tuning
The N62B48 Supercharger
The means to increase the power of the N62B48 are absolutely similar to the ones for the N62B44. You can learn about the possible mods HERE.
