Low engine oil level comes on but the oil level is good

Hi,

Since the light is coming on and the oil is full, I suspect the oil level sensor is bad, has a weak connection, or the wiring is damaged.

The oil level sensor on this vehicle is located on the bottom of the oil pan. Inspect wiring to it first as well as the connector. Once you confirm they are good, replace the sensor. That should take care of the issue.

The actual directions for replacement are in the attached pictures.

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2003 Mercedes Benz C 230 (203.040) L4-1.8L SC (271.948)
AR18.40-P-5112QK Remove/Install Oil Sensor
Vehicle Sensors and Switches Sensors and Switches - Engine Oil Level Sensor Service and Repair Removal and Replacement AR18.40-P-5112QK Remove/Install Oil Sensor
AR18.40-P-5112QK REMOVE/INSTALL OIL SENSOR
Remove/install oil sensor

See attached pictures.

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Let me know if this helps or if you have other questions.

Joe

Sir,thanks. I will replace the oil sensor and let you know.

Sounds like a plan. Before you replace it, just make sure nothing is disconnected and there is no wiring damage. I would hate for you to replace the sensor just to find out the old one wasn't connected properly or corroded.

Take care a and let me know what you find.

Take care,
Joe

Thanks a lot Joe.I will be in touch with you ,just for you to know.

You are very welcome and I look forward to hearing from you.

Take care

Sir , I checked the connections and it is perfect.I have ordered the oil sensor online and as soon as i fix it I will let you know.Have a blessed weekend,bye.

Sounds like a plan. I'm not sure where you ordered the part, but make sure it is a quality part. Some of the really low price parts are not too good. LOL

You have a good weekend as well. I will watch for the results.

Joe

Sir ,good morning .As I replaced the engine oil sensor the check engine light went off.So I am very happy with that.Thank you so much for your valuable advice.Have a blessed day,bye.
Vivek

You are very welcome. I'm glad it took care of the problem. You have an interesting name. I had a good friend years ago with the same.

Take care,
Joe

Thanks Joe,have a blessed weekend.
Vivek

You are welcome and you too.

Joe