sport mode BMW 740IL 2001 E38 Level Control System Manual

BMW 740IL 2001 E38 Level Control System Manual 740IL 2001 E38 BMW BMW https://www.carmanualsonline.info/img/1/5434/w960_5434-0.png BMW 740IL 2001 E38 Level Control System Manual

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BMW 740IL 2001 E38 Level Control System Manual 13
Level Control Systems
Air Suspension Systems (EHC)
Purpose of the System
Air Suspension systems were first introduced on the 1999 E39 Sportwagon.  Since then
the E53 (X5) and E65/E66 (7Series) mode

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BMW 740IL 2001 E38 Level Control System Manual 17
Level Control Systems
Air Springs
The air spring is made from a flexible rubber material.  It
forms an air tight cavity which provides the calculated
spring rate required for the sport wagon.
As th

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BMW 740IL 2001 E38 Level Control System Manual 21
Level Control Systems
EHC System Operation
A fully functional EHC system is controlled by one of three different modes of operation.
The operation mode is selected by the control module based on cu

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BMW 740IL 2001 E38 Level Control System Manual 23
Level Control Systems
Special Operating Modes
Assembly Line Mode (New control module)
The assembly line mode refers to control module manufacturing.  New control modules
are stored in a deactivate

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BMW 740IL 2001 E38 Level Control System Manual 25
Level Control Systems
DISplus/GT-1 Service Functions Program
The Service Functions program of the DIS/MoDiC provides the Transport Mode activa-
tion/deactivation and Ride Height Offset functions (s

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BMW 740IL 2001 E38 Level Control System Manual 39
Level Control Systems
Workshop Hints
If a threshold level is exceeded on all 4 wheels when the vehicle is stationary, the control
unit assumes that the vehicle has been raised on a workshop platfor

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BMW 740IL 2001 E38 Level Control System Manual 46
Level Control Systems
Ride Height Sensor
There are two ride height sensors, one for each rear wheel.  The ride height sensor is actu-
ated by a coupling rod and sends a signal to the EHC control un

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BMW 740IL 2001 E38 Level Control System Manual 52
Level Control Systems
Lift
The Lift mode is used to prevent control operations when a wheel is changed or during
work on the vehicle while it is on a lifting platform.  
This mode is recognized whe

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BMW 740IL 2001 E38 Level Control System Manual 55
Level Control Systems
Workshop Hints
Ride Height Measurement
When checking vehicle ride height with EHC, measure from the lower edge of the wheel
opening to the center of the wheel hub.  
Diagnosis