8-cylinder spark-ignition engine N62TU: Introduction
The N62TU is an advanced development of the N62.
- N62TU
The 8-cylinder spark-ignition engine N62TU has been modified. Compared to the N62, the engine develops more output and torque.
The N62TU is available in 2 displacement versions: 4.0 liter and 4.8 liter. The current version of the digital engine electronics is the DME 9.2.2.
The N62TU is currently installed in the E65, E66 (BMW 7-Series).
Further installation schedule:
- E60, E61 (BMW 5-Series) and E63, E64 (BMW 6-Series): from 09/2005
- E63, E64 (BMW 6-Series): from 09/2005
New features on the N62TU:
- 2-stage differentiated intake manifold with 2 DISA servomotors (each DISA servomotor has one output stage)
- EURO 4 emissions standard without secondary air system
- Hot-film air-mass sensor with digital signal
- Electronic oil level control
- N62TU upgraded
Introduction schedule:
- E60, E61: from 03/2007
- E63, E64: from 09/2007
- E65, E66: from 09/2007
- E70 (BMW X5): from 09/2006
New features on the N62TU:
- New digital engine electronics (DME 9.2.3)
- New D-CAN diagnosis interface
D-CAN is a new diagnosis interface with a new communication protocol (supersedes the previous OBD interface). DCAN transfers data between the vehicle and the BMW diagnosis system (D-CAN = "Diagnosis-on CAN"). D-CAN is first being introduced on the E70.
- E65, E66 (US version only)
- CO2
measures (Europe version only):
- Increased idling speed (for limited time) after a cold start to heat up the catalysts more quickly. In addition, modifications to the engine settings produce improved residual gas combustion.
- Active air flap control
Active air flap control will be introduced on the E60, E61 in 03/2007 (introduction on E70 in 09/2007).
- Intelligent alternator regulation (sales designation: "Brake Energy Regeneration"). Intelligent alternator regulation is first being introduced on the E60, E61 (introduction on the E70 in 09/2007).
Engine-specific data:
The 8-cylinder spark-ignition engine is characterized by the following technical features:
- 90° V8 engine
- Valvetronic with separate Valvetronic control unit
- 2-stage differentiated air intake system (DISA)
- Variable camshaft control (double VANOS)
- Integrated supply module for power supply to DME and other components (not E70)
History
| Model series / Model | Engine | kW/HP at RPM | Nm at RPM | Emissions standard | DME | ||
|---|---|---|---|---|---|---|---|
| E65/735i | N62B36 | 200/272 | 360 | EURO 4 | DME 9.2(1) | ||
| 6200 | 3700 | LEV II | |||||
| E65/745i | N62B44 | 245/333 | 450 | EURO 4 | DME 9.2(1) | ||
| 6100 | 3600 | LEV II | |||||
| E60/545i | N62B44 | 245/333 | 450 | EURO 4 | DME 9.2.1(1) | ||
| E61/545i E63/645Ci E64/645Ci |
6100 | 3600 | LEV II | ||||
| E53/X5 4.4i | N62B44 | 235/320 | 440 | EURO 4 | DME 9.2.1(1) | ||
| 6100 | 3700 | LEV II | |||||
| E60/540i | N62B40TU | 225/306 | 390 | EURO 4 | DME 9.2.2(1) | ||
| E65MU/740i | 6300 | 3500 | ULEV II | ||||
| E53/X5 4.8i | N62B48TU | 265/360 | 490 | EURO 3 | DME 9.2.1(1) | ||
| 6200 | 3900 | LEV | |||||
| E60/550i | N62B48TU | 270/367 | 490 | EURO 4 | DME 9.2.2(1) | ||
| E61/550i E63/650Ci E64/650Ci E65/750i |
6100 | 3400 | LEV II | ||||
| E70/X5 4.8i | N62B48TU | 261/355 | 475 | EURO 4 | DME 9.2.3(1) | ||
| from 09/2006 | 6200 | 3400 | LEV II | ||||
| E60/540i | N62B40TU | 225/306 | 390 | EURO 4 | DME 9.2.3(1) | ||
| E61/540i from 03/2007 |
6300 | 3500 | LEV II | ||||
| E60/550i | N62B48TU | 270/367 | 490 | EURO 4 | DME 9.2.3 | ||
| E61/550i from 03/2007 |
6200 | 3400 | LEV II | ||||
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Info for model series with introduction 09/2007 in next update.