Petrol gauge

[jim57]

Hi
How accurate are the computers on a E 240. I ran the tank very low it told me I had 13 miles range. I then went to the garage and put in 56 litres and the computer tells me I have 51 litres in the tank, I gave it a while to settle. I have no plans to run it this low again.
Also the outside tempurature readout seems uncalobrated it is showing to high a temperature, could it be the sensor is dirty, if so where do I find it.
Thanks
Jim

 

[clegsr]

How old is the car? - this is a known fault with the petrol tank senders which will need to be replaced - this was done under warranty on my W210 few months ago- you may be able to take it into your local dealer and try for a "goodwill" repair if not under warranty.

-As for the temp sensor I'm not sure but on my old C-class it was under the front left hand bumper sticking through a hole in the bumper trim

 

[jim57]

The car was bought from Mercedes direct 1 month ago it is 4 years old in October.
Jim

 

[jaymanek]

Maybe its not counting the reserve fuel?

Ive never found the temp to be that accurate. But if completely wrong, then get it looked at through the warranty.