3 Series E91 330xi (N52) TOUR
Differences between the heating/air-conditioning systems (E70):
IHKA Basic
IHKA High with
left/right
separation
IHKA High with
rear automatic air
conditioning (FKA)
Solar sensor
---
1
1
Condensation sensor
---
1
1
AUC sensor
---
1
1
Ventilation temperature sensor, front
1
2
2
Ventilation temperature sensor, rear
---
---
2*
Footwell temperature sensor, rear
---
---
2*
Sensor for heating system heat exchanger
1
2
2
Footwell flap motor, front
1
2
2
Footwell flap motor, rear
---
---
2
Ventilation flap motor, front
1
2
2
Ventilation flap motor, rear
---
1
2
Front stratification flap motor
1
2
2
Rear stratification control
---
1
2*
Heating element (PTC principle) in rear left footwell
ventilation duct
---
---
1*
Heating element (PTC principle) in rear right footwell
ventilation duct
---
---
1*
* actuated by FKA control unit
Brief description of components
Control unit:
-
IHR, IHKR and IHKA control panel/control unit
The control panel and control unit together form a single component. There are different versions of the IHR,
IHKR and IHKA.
> E81, E82, E87, E90, E91, E92, E93: control panel/control unit [more ...]
> E70: control panel/control unit [more ...]
-
Control panel/control unit for automatic rear air conditioning, E70 only
The automatic rear air conditioning (FKA) is available on the E70 as additional equipment with the IHKA. The
FKA is used for climate control in the rear.
[more ...]
Sensors:
-
Interior temperature sensor (IHKA only)
The force-ventilated interior temperature sensor with interior temperature sensor fan is fitted in the IHKA
controls.
The interior temperature sensor measures the temperature of the air drawn in from the vehicle interior by the
integrated interior temperature sensor blower.
SBT Integrated heating control and air-conditioning system E70, E81, E82, E87, E90,
BMW AG - TIS
22.02.2013 02:05
Issue status (12/2007) Valid only until next DVD is issued
Copyright
Page - 4 -
