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

2003 MERCEDES BENZ C230
2,230,000 MILES • 1.8L • 4 CYL • TURBO • 2WD • AUTOMATIC
Avatar
VIVEKHB
  • MEMBER
  • 93 POSTS
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:
Jan 11, 2020 at 11:29 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Jan 11, 2020 at 5:35 PM
Avatar
VIVEKHB
  • MEMBER
  • 93 POSTS
Sir,thanks. I will replace the oil sensor and let you know.
Jan 12, 2020 at 12:26 PM
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Jan 12, 2020 at 4:57 PM
Avatar
VIVEKHB
  • MEMBER
  • 93 POSTS
Thanks a lot Joe.I will be in touch with you ,just for you to know.
Jan 13, 2020 at 2:59 AM
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
You are very welcome and I look forward to hearing from you.

Take care
Jan 13, 2020 at 6:36 PM
Avatar
VIVEKHB
  • MEMBER
  • 93 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.
Jan 18, 2020 at 10:29 AM
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Jan 18, 2020 at 5:50 PM
Avatar
VIVEKHB
  • MEMBER
  • 93 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
Feb 12, 2020 at 3:42 AM
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Feb 12, 2020 at 4:49 PM
Avatar
VIVEKHB
  • MEMBER
  • 93 POSTS
Thanks Joe,have a blessed weekend.
Vivek
Feb 13, 2020 at 5:47 PM
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
You are welcome and you too.

Joe
Feb 13, 2020 at 7:43 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.