3 Series E36 320i (M50) CONVER
Electrical test:
Measuring resistance between terminals (1) and (3).
Nominal value 40
±
5
Ω
Measuring resistance between terminals (2) and (1) or (2) and (3).
Nominal values in each case: 20
±
5
Ω
Siemens MS 40:
Single-coil rotary actuator, 2-pin plug connection
Electrical test:
Measuring resistance between terminals (1) and (2).
Specification: 20
±
5
Ω
Mechanical test:
Sudden turning of the idling speed control valve must enable the
rotary piston (1) in the idling speed control valve to move.
Dynamic test:
Switch off ignition.
Remove idling-speed control valve (connector remains
connected).
Open or close rotary piston (1) completely.
Switch on ignition.
Rotary piston must adopt and retain a cross section aperture
setting of approx. 50
%
.
RA Replacing idle speed control valve (M50, S50US)
BMW AG - TIS
06.02.2013 22:40
Issue status (12/2007) Valid only until next DVD is issued
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