1987 BMW 530I TOURING change wheel

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Page 13 of 57

BMW 530I TOURING 1987 E34 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

Page 37 of 57

BMW 530I TOURING 1987 E34 Level Control System Manual 37
Level Control Systems
In addition to the LED indicator, the following text messages can
be displayed in the instrument cluster:
T TR
RA
AI
IL
LE
ER
R 
 M
MO
OD
DE
E
A coupled trailer is identified

Page 50 of 57

BMW 530I TOURING 1987 E34 Level Control System Manual 50
Level Control Systems
Normal
The normal mode is the starting point for the vehicle’s normal operating state.  It is obtained
by way of the engine running signal.
Ride level compensation, changing

Page 51 of 57

BMW 530I TOURING 1987 E34 Level Control System Manual 51
Level Control Systems
Kerb (Curb) Mode
The Kerb mode prevents the inclination caused by the vehicle mounting an obstacle with
ine wheel from being compensated.  Compensation would cause a renewed i

Page 52 of 57

BMW 530I TOURING 1987 E34 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

Page 53 of 57

BMW 530I TOURING 1987 E34 Level Control System Manual 53
Level Control Systems
Operating Principle
Initialization/Reset Performance
When the control unit is powered up after a reset (such as an undervoltage < 4.5 V or by a
load cutoff), different tests a