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New Generation N62 Engine
Chapter 3 P.33
Course Contents/Background Material
© BMW A
G
,
Service T
raining
Fig
. 27: C
ylinder head, cylinder bank 1
-4
, seen from belo
w
C
ylinder head gaskets
Fig
. 28: C
ylinder head gaskets
KT
-77
1
2
KT
-7694
44
46
Table of Contents
Main Page
Default Chapter
2
Table of Contents
2
N62 Engine
5
Introduction
5
General Information
5
Technical Data
6
Full Load Graphs
7
Views of the N62 Engine
9
N62B36
9
N62 Supplement to Existing Documents
12
Crankcase Venting System
12
Alternator
12
Characteristic Mapping Thermostat
12
Engine Management
12
Vanos
12
Valvetronic System
12
N62 Engine Mechanics
13
Fresh Air System
13
Air Routing
13
Intake Manifold
16
Crankcase Venting System
25
Exhaust System
27
Structure
27
Exhaust Manifold with Catalytic Converter
28
Silencer
28
Secondary Air System
29
Ancillary Components and Belt Drive
32
Belt Drive
32
Alternator
34
Coolant Compressor
38
Starter Motor
39
Power Steering Pump
39
Cylinder Heads
40
Engine Cover
41
Cylinder Head Covers
42
Valve Gear
44
Valvetronic
48
Bi-VANOS (Variable Camshaft Adjustment)
56
Vacuum Pump
61
Chain Drive
62
Cooling System
70
Coolant Circuit
70
Water Pump
75
Map-Controlled Thermostat
79
Cooling Module
80
Cooling Radiator
81
Coolant Expansion Tank
81
Transmission Oil/Water Heat Exchanger (ÖWT)
82
Electrically-Operated Fans
82
Viscous Coupling Fan
82
Engine Block
83
Oil Sump
83
Crankcase
85
Crankshaft
86
Connecting Rod and Piston
88
Flywheel
90
Vibration Damper
90
Engine Suspension
90
Lubrication System
91
Oil Circuit
91
Oil Check Valve
92
Oil Pressure Switch
93
Oil Pump
94
Oil Filter
95
Pressure Control
96
Oil Cooling
97
Technical Data
98
N62 Engine Management System ME 9.2
99
Introduction
99
General Information
99
ME 9.2 Overview
100
Components
107
Functional Description
110
General Information
110
Oxygen Sensor Regulation
111
Oil Condition Sensor (OEZS)
112
Variable Intake Manifold
115
Idle Speed Control
115
Valvetronic
117
General Information
117
Function
119
Valvetronic Control Unit
121
DME Control Unit
122
DME Main Relay
122
Valvetronic Additional Relay
122
Valvetronic Motors
122
Valvetronic Sensors
123
N62 Fuel System
125
General Information
125
Injection Valves
125
Fuel Pressure Regulator
126
Electric Fuel Pump (EKP)
126
EKP Regulation
126
E65 Fuel Systems
129
General Information
129
Filling the Tank
131
Tank Ventilation
133
Fuel Supply System
136
Fuel Tank Leak Diagnostic Module
138
General Information
138
Function
138
Diagnostic Procedure
139
Glossary
145
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