BMW X5: Introduction
Fig. 1: Identifying 8-Cylinder Spark-Ignition Engine N62TU E60, E61, E63,
E64, E65, E66, E70
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 09/2005New 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 09/2006New 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). D-CAN transfers data between the vehicle and the BMW diagnosis system (DCAN = "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:
- 90º 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)
VEHICLE HISTORY
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Brief Description Of Components
The engine control system of the V8 engine is described for the E65.
With the digital engine electronics (DME) on the N62TU, the following sensors
supply signals to the DME
control unit:
2 eccentr
System Functions
The following system functions are described:
Power management
Electronic immobilizer
Comfort start
Air supply: 2-stage differentiated air intake system "DISA"
Charge monitoring
"Valvetronic" v
Convenient-Start System - System Functions
The convenient-start system allows the engine to be started in a
user-friendly manner as the starter motor
automatically remains engaged until the engine is running.
When the START-STOP button is pr
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Smooth Running Measurement
The DISplus/GT-1 are helpful in pinpointing the cause of an engine misfire.
Once the short test is completed,
the fault memory of the ECM can be read out to determine which cylinder or
cylinders have set misfire faults.
There may or may not be any faults present. The engine could be running rough
Head-up Display
Principle
The Head-up display projects important information
in the driver's field of view, for instance the
speed.
The driver can get information without averting
his or her eyes from the road.
General information
Follow the information on cleaning the Head-up
Display.
Overview
Turning on/off
1.
