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

Tiny
VIVEKHB
  • MEMBER
  • 2003 MERCEDES BENZ C230
  • 1.8L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 2,230,000 MILES
Sir, your advice will be highly appreciated.
I checked the oil level by emptying the engine and the oil quantity is not low.
I did an OBD2 scan which shows as follows:
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Saturday, January 11th, 2020 AT 11:29 AM

11 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
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.

________________________________________

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.

________________________________________

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

Joe
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Saturday, January 11th, 2020 AT 5:35 PM
Tiny
VIVEKHB
  • MEMBER
  • 88 POSTS
Sir, thanks. I will replace the oil sensor and let you know.
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Sunday, January 12th, 2020 AT 12:26 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
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
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Sunday, January 12th, 2020 AT 4:57 PM
Tiny
VIVEKHB
  • MEMBER
  • 88 POSTS
Thanks a lot Joe.I will be in touch with you, just for you to know.
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Monday, January 13th, 2020 AT 2:59 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
You are very welcome and I look forward to hearing from you.

Take care
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Monday, January 13th, 2020 AT 6:36 PM
Tiny
VIVEKHB
  • MEMBER
  • 88 POSTS
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.
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Saturday, January 18th, 2020 AT 10:29 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
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
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Saturday, January 18th, 2020 AT 5:50 PM
Tiny
VIVEKHB
  • MEMBER
  • 88 POSTS
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
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Wednesday, February 12th, 2020 AT 3:42 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
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
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Wednesday, February 12th, 2020 AT 4:49 PM
Tiny
VIVEKHB
  • MEMBER
  • 88 POSTS
Thanks Joe, have a blessed weekend.
Vivek
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Thursday, February 13th, 2020 AT 5:47 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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You are welcome and you too.

Joe
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Thursday, February 13th, 2020 AT 7:43 PM

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