300E 4MATIC (124.230) L6-3.0L (103.985) (1990)
Oxygen Sensor: Electrical Specifications
Oxygen Sensor Heater Resistance................................................................................................................................................3 ohms (cold) 13 ohms (hot)
Oxygen Sensor Operating Voltage (engine running)...........................................................................................................................................0.4 - 1.0 volts
Oxygen Sensor Heating Element current draw.........................................................................................................................................................0.5 - 1.3 A
Tune-up Specifications
Firing Order............................................................................................................................................................................................................1-5-3-6-2-4
Idle Speed
^
M/T...................................................................................................................................................................................................650-750 RPM
^
A/T..............................................................................................................................................................................................550-650 RPM [1]
Timing.............................................................................................................................................................................................................0 ±2° BTDC [2]
Air/fuel Mixture....................................................................................................................................................................................Readout oscillating [3]
[1] Automatic Transmission in Drive
[2] Reference figure at cranking speed only, not adjustable
[3] At Diagnostic socket, with on/off ratio tester, and O2 sensor connected