What's your E320 gas mileage?
Thanks for any information.
Last edited by silver00E320; Dec 25, 2004 at 09:20 AM. Reason: clarification
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New tires...
Oil change within the last 7K...
Fair amount of highway/99 driving...
Don't even really break 70....
And I'm not trying to beat anyone off the line everytime I'm at a light.
What am I missing?

80,000 miles
The max I get on the highway is 24 mpg with 65-70 mph. Are wagons known to give lower mpg than sedans? Does the 4-matic transmission reduce mileage?
Lately, when I start the car with a cold engine, the instrument cluster shows a very low mpg to start with -- something in the range of 5-7 mpg. after about 10 miles of mixed city and freeway driving, it gets to about 11-13 mpg. With an hour of highway driving, it reaches 22-24 mpg. What could cause such a low mpg on a cold start?
The only significant repair on the car was the replacement of both catalytic converters at 65,000 miles (both cat's were shot and were causing severe misfiring of the engine).
Clean your maf ,diy on
http://www.benzworld.org/forums/w210...1-06-08-a.html
Just doing that and a air filter change from www.autohausaz.com can add a few mpg.
atul,yes the wagons get less and cold start the system is running much like an old carb car with a choke it is running rich until warmed up and that is reflected in the read out.
To the 1998 owner---no computer avg on that year model--
Last edited by ohlord; Jan 15, 2008 at 07:15 PM.

Thanks for the info. I got the air filter replaced yesterday along with the Flex B service. I hope I get some improvement in mpg. Also, the tires are completely shot. I will replace them soon. Next, I will try the MAF cleaning procedure.
Has anyone had the fuel injector cleaning service performed? Most dealers around NYC advertize this service for $150-200.
I wanted to test your hypothesis about cold starts and running like an old carb car with a choke. While displaying miles and mpg since reset, I hit the reset button a minute into a drive after a cold start. After reset, it started out with 19 mpg while mpg since start was still displaying 7 mpg. I don't know about the accuracy of the mpg reading on a short term basis. But I've found the average mpg between gas refills to be quite accurate.
Could others please report what mpg reading their instrument cluster shows right after you start a cold engine first thing in the morning? The C-class loaner cars show about 14-16 mpg on cold start. I understand Ohlord's logic, but I haven't seen other cars that start out with 6 mpg reading on cold starts.
Thanks!

No use in spending the 20plus bucks on the stuff the dealer might point you towards,seafoam does the job at a fraction of the price.
ohlordand a heck of a lot less then 150 bucks
from SanFrancisco to Los Angeles, 250 mile section of straight as an arrow, Flat as a pancake so I backed my w210 down to 60mph and......
38.6 MPG.
Un believable but true, I even checked it with a calculator.
Do I win???






