Cables BMW X5 2003 E53 Workshop Manual

16
Climate Control System (IHKR)
The manual system is controlled through the use of bowden cables for air distribution and
electronic control for temperature regulation and blower speed. One stepper motor is used
for the fresh/recirculated air intake.
The IHKR incorporates the following features:
• Fresh air intake grilles integrated into the hood - the fresh air passes through the single
micro filter installed in the center of front bulkhead.
The air then passes through the air duct, which is bolted to the bulkhead, and enters the
heater - A/C unit through the non-return flaps.
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64530002
Intake
Fresh Air

18
IHKR Operation
IHKR system operation is as follows:
• Temperature Control - The desired interior temperature is set with the rotary knob on the
control panel. Control of the interior temperature is carried out electronically by the con-
trol module’s cycling of the water valve to regulate coolant flow through the heat
exchanger.
• Air Distribution - Air distribution is set mechanically through the use of gear linkages and
bowden cables. The air can be set for:
- Footwell or blended between footwell/face vent or footwell and defrost
- Defrost or blended between footwell/defrost or defrost/face vent
- Face vent or blended between face vent/footwell or face vent/defrost
• Blower Control - Blower fan speed is controlled through a final stage with infinitely vari-
able speed control.
The push buttons on the control panel are used to:
• Switch between fresh air and recirculating air inlet modes
• Request for A/C activation
• Activation of the rear window defogger
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TEMP
0
64530008

23
Cargo Area
The sliding load floor is available as an option on the
X5. It is mounted through two sliding bushing on two
steel rails
The load floor is held in position by the
locking bowden cable mechanism that
latches when closed to prevent the
floor for sliding while the vehicle is
moving. The load floor incorporates a
shear point that will cause the floor to
collapse upward in a rear collision.
51530000
Bowden
Cables
51520002

26
Tailgate
The lower tailgate section also uses an electric actuator for its operation. The actuator is
positioned in the center of the tailgate and operates two latches though bowden cables.
The latches are positioned on the left and right sides of the tailgate. Two springs are used
to dampen the operation of the lower tailgate section.
Adjustments of the rear tailgate are car-
ried out at the tailgate body latch on the
left and right sides.
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