300E 4MATIC (124.230) L6-3.0L (103.985) (1990)
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Oxygen Sensor: Connector Locations
Fig. 6 Catalytic Converter And Oxygen Sensor Locations
The oxygen sensor is installed in the exhaust system upstream of the catalytic converter.
O2 Sensor Connector Location
The oxygen sensor connector is located on the passenger side underneath the carpet.
