Service oil level sensor, multiple faults


New member
Sep 15, 2021
Golf VI 2.0
My Golf VI 2.0 recently gave me a service Oil Level sensor warning on my dash. I checked the oil level and it is fine, and the oil temperature readings are in the normal range. I took the car to a mechanic, he replaced the sensor and the warning message continues on my dash. The shop tells me that there are multiple fault codes, and that sometimes their ODB reader is able to connect to the car and sometimes it is not.
Fault codes include:
engine management
central electronic
combined instrument
and two door errors

this is happening in Portugal, so my translations of the errors may not quite make sense in english
The car is fully stock, with any recommended recall services made, and there have been no recent changes or work done on the car.