The electronic oil level sensor is giving a faulty indication, by using E 20 engine flush chemical, can I clean the sensor and clear the fault?

  • Welcome to Motor Vehicle Maintenance & Repair! Can you please specify what exactly is your question here? Feb 12, 2018 at 18:19
  • Looks like dude just asked if you can use E20 flush to clean an oil level sensor in a 525i. That's what I got, anyway.
    – Sam Basso
    Feb 12, 2018 at 18:38
  • Clean the sensor and check the connections - if the fault is still there then cleaning did not work... Replace...
    – Solar Mike
    Feb 13, 2018 at 4:53

1 Answer 1


You will need to replace the oil level sensor, the sensors go bad internally and cleaning will not fix it, do a google search and you will see that it's a common problem.

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