Source google image: https://diagramchartwiki.com/wp-content/uploads/2018/03/bmw-e34-engine-diagram-bmw-wiring-diagramse30-e28-e34-e24-e23-e32-e31-z3.gif
Schema electrique bmw e34 525i
Source google image: https://diagramchartwiki.com/wp-content/uploads/2018/03/bmw-e34-engine-diagram-bmw-wiring-diagramse30-e28-e34-e24-e23-e32-e31-z3.gif