Sorry no pictures but it is located just behind the engine shock on the pass. side. It lookes like some kind of sensor.It is pushed into the engine and is held in with a " C " clip. It has a bullet type conn. and is beige in color.

Sounds like the connector for the oil level sensor. Is it leaking oil? There is an o-ring that can be replaced.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

M.B DOC: Yes it is leaking oil. I just ordered O ring from Phil but my question is, do i have to drain the oil to remove this sensor?

Yes, you will also need to remover the lower oil pan. A gasket will be needed for that as well.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

M.B DOC:Why does the oil pan have to be removed?

the pan has to come off cuz the sensor is mounted
on the inside.

Please excuse my ignorance but is this sensor pushed thru the engine block from the inside then held on with the C clip?

Yes the sensor is installed from the inside.

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Mercedes Benz Master Tech - Retired

Thanks guys for all your help, i will call phil and order a pan gasket.