Two questions about relay's

[BMW325iLRDiscoI]

Do you know which ones is the relay for the High Beams and which one for the wipers?

PROBLEMS:
1.- Wipers won't stay on after "swithcing on" the wiper's switch but if a hold the lever on the "instant" position, the wiper will work until I let go the lever

2.- If I pull, "click" and hold on the High Beams lever, the high beams will lit but if I let go the lights won't stay on. I have to pull and click again so at least the low beams stay on.

Any help will be more than welcome... thanks!

[turbine_2]

IIRC there is no relay for high beam, so that sounds like your switch stalk. With that in mind there may be a simalar problem with the wiper lever.

[imspanners]

I would suspect the Multi-Function Unit that is the main controller for the timed components on the car. Ir's plugged into the rear of the fusebox.

A rundown of the components and tests for the MFU:

MULTI–FUNCTION UNIT (MFU)

CIRCUIT OPERATION
Multi–Function Unit (MFU)
The multi–function unit (MFU) is mounted on the
rear of the passenger compartment fusebox and
has an input to operation of the following:

Heated rear screen

Courtesy lights

Side and headlights

Rear fog guard lamps

Headlamp power wash

Front wipers

Rear wash/wipe
Diagnostic Procedure
1. Close all doors and the tailgate.
NOTE: If the oil pressure switch goes open
circuit (engine is started) during the following
procedure, the MFU will exit the diagnostic mode
immediately.
2. Press and hold the heated rear screen switch
and switch on the ignition.
3. Release the heated rear screen switch within 2
seconds and the MFU will beep to indicate that it’s
in diagnostic mode 1.
4. Press the heated rear screen switch; the MFU
will beep twice. In turn, operate each of the
following switches, rear fog guard lamps, side
lights, headlights, front wiper, and rear wiper. The
MFU will beep twice each time a switch is
operated.
5. Pressing the heated rear screen again will
cause the MFU to enter diagnostic mode 2.
6. The MFU will provide outputs to the following in
order given below:

Heated rear screen relay energised for 2
seconds

Courtesy lights energised for 2 seconds

Dim dip relay energised for 2 seconds

Rear fog guard lamp energised for 2 seconds

Headlamp power wash energised for half a
second

Front wiper energised for half a second

Rear wipe/wash energised for half a second
7. The MFU will then exit the diagnostic mode.

[BMW325iLRDiscoI]

I would suspect the Multi-Function Unit that is the main controller for the timed components on the car. Ir's plugged into the rear of the fusebox.

A rundown of the components and tests for the MFU:

MULTI–FUNCTION UNIT (MFU)

CIRCUIT OPERATION
Multi–Function Unit (MFU)
The multi–function unit (MFU) is mounted on the
rear of the passenger compartment fusebox and
has an input to operation of the following: ...


Wow... thank you... I got to try that!! Hope to have time tomorrow. I will let you know.

One question though, all this is true for a 1995 Disco I?

Thanks

[imspanners]

Yep, exactly the same as my own.. ;)