380SL (107.045) V8-3.8L (116.960) (1982)
1 Switch on ignition, pull electric connection from transmitter (1-pole coupler, arrow).
Indicated nominal value 3 bar.
2 If readout is still 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 stopped, 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.