Electric Oil Pressure Gauge
Testing Electric Oil Pressure GaugeTest Values:
Note:
The oil pressure gauge is electrically controlled.
A pressure transmitter located in oil filter activates the indicator in instrument cluster.
With the ignition switched on, the indicator in instrument cluster is continuously connected to positive current. Negative is connected to indicator via pressure transmitter. With increasing pressure, the ohmic resistance of pressure transmitter increases and the readout is thereby changed.
If no oil pressure is indicated, the following check can be made for diagnosis "transmitter, line or indicator detective"
Testing
103 Engine:
110 Engine:
116/117 Engines:
1. Switch on ignition pull electric connection from transmitter (1-pole coupler, arrow).
Indicated normal value 3 bar.
2. If readout is 0 bar test, Line from transmitter to indicator for ground connection If line is in order, renew indicator
3. If with the ignition switched on and the engine s1ono~, the indicator shows continuously 3 bar, pull line from transmitter and connect with negative
If readout is 0 bar renew transmitter.
If readout remains at 3 bar the line is interrupted