5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
for a starter I checked the Bentley manual on E 34. I thought this might help
The E34 (non-climate control) heater system consists of these parts:
a) Solenoid valves and auxiliary water pump at the left-rear of the engine bay.
Referenced respectively on EWD-131 at the upper-right, and EWD-133 at the lower-right. See my "Brake Fluid" procedure for a photo.
B) Heater cores (little radiators) with temperature sensors (installed behind the dashboard) one each for the left and right sides of the cabin. Referenced on EWD-131 at the lower-right.
c) The HVAC blower and speed control sub-system, referenced on EWD-132 at the top.
d) Control Panel, see the bottom of EWD-131 and 132.
e) Two stepper motors controlling fresh air and recirculation flaps, see the bottom of EWD-131 and 132. There may be more if the Bentley diagram is in error.
f) Integrated Climate Regulation Control Module, referenced on EWD-131 and 133.
thanks for the info but i fixed my problem already. what happend was the plastic impeller on the water pump and it got into the motor and i wanted to see where to pour water to get the pieces out, but i think i got all of the out without the diagram.
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