E320 CDI Mileage
Super Member
Joined: Jan 2010
Posts: 563
Likes: 31
From: The Villages, Florida
2006 E320 CDI
My 2005 CDI at 185,000 miles typically gets 38 mpg in summer and 34 in winter by the onboard computer.
However, I've just started calculating it from gallons going in versus miles travelled and it is an mpg lower.
I don't smell any leaks.
Any idea of what causes this discrepancy?
Peter
However, I've just started calculating it from gallons going in versus miles travelled and it is an mpg lower.
I don't smell any leaks.
Any idea of what causes this discrepancy?
Peter
Mike T.
Senior Member
Joined: Aug 2014
Posts: 338
Likes: 20
From: Charlotte, NC
2005 E320 CDI, 2015 GLA 250
That was my guess too. Amazing as Mercedes is controlling the fuel flow and knows the distance so accurately.
But why lie to us? Maybe to trick us into thinking our cars are better than they are? Isn't that what got VW into hot water?
I bet they are more accurate after VW debacle.
regards,
Peter
But why lie to us? Maybe to trick us into thinking our cars are better than they are? Isn't that what got VW into hot water?
I bet they are more accurate after VW debacle.
regards,
Peter
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,225
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
The 6% misread was the highest I have seen on MB, while on 2008 E320BT it is less than 1%.
Each gauge has it tolerance and having 4 thermometers in my house, each will show different temperature.
I read somewhere that mpg gauge can be calibrated with SD.
Each gauge has it tolerance and having 4 thermometers in my house, each will show different temperature.
I read somewhere that mpg gauge can be calibrated with SD.
