Complete service and repair manual in PDF format for the E34 5 series between 1989-1995.
Models covered are: 520i, 525i, 524TD, 530i, 535i.
The manual has 1597 pages divided into 27 chapters. This is not a cheap scan, this is the real deal service manual professionally illustrated, full of step by step procedures, diagrams, pictures...

Some chapters of the manual are:

Engine
Engine Electrical System
Fuel System
Fuel Supply System
Cooling
Exhaust System
Clutch
Manual Transmission
Automatic Transmission
Gear Shift Mechanism
Propeller Shaft
Transfer Box
Front Axle
Steering and Wheel Alignment
Rear Axle
Brakes
Pedals
Wheels and Tires
Integrated Suspension System
Body
Body Equipment
...