uumode
MB Enthusiast
- Joined
- Sep 1, 2003
- Messages
- 1,587
- Car
- C300 AMG Line Premium Plus
I will note that my car over-reads by 10% vs. my own fuel in, miles out calculation. It used to be just 1-2% out, but I made the mistake of mentioning getting slightly lower MPG to my servicing dealer and their solution was to tweak something on the computer lol.
That's unethical if so, the technicians making the trip computer give 10% more optimistic readings to give the impression the car is doing more miles per gallon after the workshop visit