Hydropneumatic Rear Leveling System
This module pertains to the hydropneumatic rear suspension system with the engine driven piston pump. The earlier system using the electro-hydraulic pump will not be discussed.
The self-leveling suspension system is designed to maintain vehicle ride height under loaded conditions.
The system is fully hydraulic, utilizing a tandem oil pump to supply pressure to both the suspension system and power steering system.
The system is installed on:
- E32 - 735 iL, 740iL and 750iL
- E34 - Touring 525i and 530i
- E38 - 740 iL and 750iL