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Temperature Controller
E46
BMW E46 User Manual
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TEMPERA
TURE
REGULA
TION -
COOLING
Air conditioning
control on
the E46 is
similar to
the E39 IHKA
system.
The system uses
the
variable displacement compr
essor
. The swash plate of
the compressor is hinged
so that is
can
vary
the
piston
travel
based
on
the
output
requir
ements
of
the
system.
A
MS42.0
MS42.0
A
UX.
F
AN
A
UX.
F
AN
COMPRESSOR
PRESSURE
SENSOR
EV
APORA
TOR
7
E46 Climate
Control
6
8
Table of Contents
Default Chapter
1
Table of Contents
1
Subject Page
2
E46 Ihka
4
Control Panel
4
Fresh Air Micro Filter
5
Temperature Regulation-Heating
6
Temperature Regulation - Cooling
7
Compressor Control
8
Stepper Motor M-Bus Control
9
Convertible Rear Window Defroster
10
IHKA Personalization
12
System Operation
13
Diagnosis and Troubleshooting
13
E46 Ihka I.p.o
14
Solar Sensor
15
Purpose of the System
16
Solar Radiation
17
Solar Sensor
17
Components
18
System Operation
20
Subject
21
Control Curves
21
Blower Intervention
21
Temperature Intervention
22
Ventilation Intervention
23
Diagnosis
24
Workshop Hints
25
E46 Ihkr
26
Purpose of the System
27
System Components
28
Ihkr I
28
IHKR Control Unit
30
IHKR Housing
30
Principle of Operation
31
Blower Adjustment
31
Air Distribution
31
Temperature Control
32
Engine Map Cooling
33
Service Station Feature
33
Air Conditioning Control
34
Air Intake
35
Ram Effect Air Compensation
35
Rear Window Defroster
36
Workshop Hints
37
Review Questions
39
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User Manual
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BMW E46 Specifications
General
Brand
BMW
Model
E46
Category
Temperature Controller
Language
English
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