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Conversion from IHKR (integrated heater and air conditioner control)

to IHKA (automatic heating and air conditioning)

 

BMW 3 Series (E46)

BMW Parts and AccessoriesInstallation Instructions

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Contents

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Important notes

 

Safety instructions

 

"

 

Assembly instructions

 

Target Group

 

Required tools and auxiliary materials

!

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1. Preliminary work

 

TIS AW no.

 

The following components should be disassembled first:

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2. Connection overview IHKA and AUC wiring harness

 

Item Designation SignalCable colour/ 

cross-sectionAnschlussort im Fahrzeug

Code desig.

plug-in place

A

B

B1

B2B3B4B5

A5

A4A12

A6

A9A8

A10

A1

A2

A3

A7A11

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"

2

1

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"

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4. Install and connect IHKA wiring harness

 

"

 

Item Code designation Connection point

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A6

 

A11

 

A6

 

X711

 

A11

 

X18346

 

A6

 

A11

 

"

 

X816

 

"

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5. Install and connect AUC sensor

 

Only vehicles with 4 or 6-cylinder petrol engine

 

X3211

 

Only vehicles with 4 or 6-cylinder diesel engine

 

X3211

 

All vehicles

 

B2

 

B5

 

X610

2

31   X3211

2

1

X3211

3

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6. Finalising operations

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7. Circuit diagram IHKA wiring harness

     X     1     8     3     4     1

     X    7    7   1

     X    7    7    2

     X    6    7   1

     X

     8     1     6

     A     1     1

     B     1     4

     B     1     1

     N     2

     M     3     8

     M     3     0

     3

     4

     1

     V     E     D     F

     F     U     E   -

     2

      0 .      5      G      R

      0 .      5      G      N

     3

     4

     2

     2

       W     T     L

     F     U     E   -

     1

     2

     1

      0 .      5      G      N

      0 .      5      G      N      G      R

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Key

 

Cable colours

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8. Circuit diagram AUC wiring harness

B414

A11

X3211

X610

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Key

 

Cable colours