1990 BMW 530I TOURING steering

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Page 3 of 57

BMW 530I TOURING 1990 E34 Level Control System Manual 3
Level Control Systems
Level Control Systems
Purpose of the System
The primary function of Level Control Systems is to maintain the height of the vehicle as
closely as possible to a predetermined lev

Page 4 of 57

BMW 530I TOURING 1990 E34 Level Control System Manual 4
Level Control Systems
Hydropneumatic Rear Leveling System
This module pertains to the hydropneumatic rear suspension system with the engine dri-
ven piston pump.  The earlier system using the electr

Page 6 of 57

BMW 530I TOURING 1990 E34 Level Control System Manual 6
Level Control Systems
Tandem Pump
The tandem pump consists of a vane pump for power steering and a radial pump for self-
leveling suspension. Both pumps are driven by the same shaft and have separat

Page 7 of 57

BMW 530I TOURING 1990 E34 Level Control System Manual 7
Level Control Systems
Oil Reservoir
The single reservoir stores fluid for both the self-leveling and power steering systems.
Incorporated in the reservoir, is a reed type level warning switch. If th