Gulp! my E320CDi only returns 26mpg!!!
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by latent
OK I mainly do town driving. But my first tank of diesel has delivered an average of 26mpg and I am not an aggressive driver. Could do better me thinks 
You are a one!!!!! Been there, done that, seen the mileage. Just imagine if it was a 3.2litre petrol engine. My neighbour has a Cayenne and around town he is lucky to get 12 - 14mpg. We do a lot of town driving and I think that is why we only get an average of 34mpg. A diesel engine takes a long time to 'warm-up' and get to its efficient working temperature. A very good tip is to 'use' the torque of the engine. "Feel the Force"Obviously you must accelerate safely, but once moving around town you will hardly need the throttle. Do NOT use SBC STOP!!!! Before you ask page 242
When in town always think of those petrol guzzling cars next to you drinking all those £. s. d. If all that fails I will share some of my medication with you.
Happy motoring
John
Cool, but sunny Torquay
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by Brother Benz
13,200 miles on a 2004 E320 4Matic. Average milage = 23.1
Regards,
John
Cloudy with some sunny spells in Torquay
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Joined: May 2004
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From: Warren, NJ
'05 E320 CDI;'04 S2k;'94 Supra TT;'10 QX56;'38 Buick;98 Port City Offset Late Model
1. It will probably get better as the miles add on. Especially the first few thousand.
2. Mileage various will driving style. The diesels biggest advantage is in part throttle operation. At 100+ we could barely get above 28. In city driving and stop and go towns around 23. Running with the cruise at 70-75 it jumped to 30-34.
And a little cruise control regulated run at the space saver spare maximum speed, was, well, higher. More on that later.
2. Mileage various will driving style. The diesels biggest advantage is in part throttle operation. At 100+ we could barely get above 28. In city driving and stop and go towns around 23. Running with the cruise at 70-75 it jumped to 30-34.
And a little cruise control regulated run at the space saver spare maximum speed, was, well, higher. More on that later.
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Joined: May 2004
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From: Lone Star State.
W211 2005 CDI, X166 2013 350 BT, 997.1 2008 C4S
Fuel economy will go up with mileage. I was getting those numbers with my first hundred miles but increased over time. Presently have approx 4000 miles. Averaging about 28 mpg city (or stuck in traffic on freeway) and 36-38 mpg hwy. The AC and engine temp are big variables for mpg but just drive as you normally would and I think you will be pleased that your enjoying a fantastic car with amazing engineering. The fuel economy is an added bonus. Happy motoring!
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Joined: Sep 2003
Posts: 783
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From: Murrieta, Southern California
Late Built 2005 W-211 E-320 CDI
City Fuel Econmy?
Originally Posted by latent
OK I mainly do town driving, but my first tank of diesel has delivered an average of 26mpg and I'm not an aggressive driver. Could do better me thinks
Sure it could be better. You're talking 26 mpg on the Imperial gallon, aren't you?
Sometimes with my '99, we get only 20 mpg (U S gallon) driving strictly in town where we spend more time
stopped than moving.
Here are a few little tricks that you might try to use to see if your town mileage will improve.
Try using the second gear start feature that is available in your CDI. It is the "C" position, I think.
On mine, it is the "W" position.
As you roll away from your stopped location, try easing into the throttle, thus allowing the
engine to operate in the lower RPM ranges where it has its Maximum torque.
As you may already understand, these motors do not need to be wound up like the high RPM
low torque small gas buggies!
As the car is accelerating and you reach the point where it will upshift to the next higher gear
(that gears' minimum speed after that upshift,) try easing up on the throttle which will allow
the tranny to upshift at the earliest possible speed, thus coming into that next higher gear at the
low end of the engines maximum torque range, and repeat this until you get to your proper speed.
In other words, make it work by using the torque and not the revs.
This gets to be second nature after you've done it for awhile.
You've got to put that tremendous 369 ft/lb of torque to maximum use don't you know?
Keeping the motor wound up at high revs as David has discovered worsens the fuel economy.
And perhaps when the motor has a few more miles, the economy will improve slightly?
Mainly, fuel economy in the city is determined by the position of your right foot, and how you control the tranny.
See if this doesn't help just a little.
Last edited by Green E-300 DT; Sep 16, 2004 at 01:56 PM. Reason: Editing
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by Green E-300 DT
As you roll away from your stopped location, try easing into the throttle, thus allowing the
engine to operate in the lower RPM ranges where it has its Maximum torque.
As you may already understand, these motors do not need to be wound up like the high RPM
low torque small gas buggies!
In other words, make it work by using the torque and not the revs.
This gets to be second nature after you've done it for awhile.
You've got to put that tremendous 369 ft/lb of torque to maximum use don't you know?
Keeping the motor wound up at high revs as David has discovered worsens the fuel economy.
And perhaps when the motor has a few more miles, the economy will improve slightly?
Mainly, fuel economy in the city is determined by the position of your right foot, and how you control the tranny.
It is nice to see someone else 'singing from the same hymn sheet'. or, 'Talking the torque'. How would you like to join the 'campaign'?Kind regards,
John
Dusk at Torquay
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Joined: Sep 2003
Posts: 351
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From: Christchurch, New Zealand
17 E220D, 11 E350 CDI(sold), 06 CLS320 CDI (sold), 05 Cadillac DeVille (gone), 04 E320 CDI (sold)
A little tip if you use the speed limiter function....
At 50km or 30mph the car will stay in third.
At 52km or 31 mph it will shift into fourth.
I use this around town all the time, just set the limit and keep your foot flat to the floor. It is actually more efficient than driving normally, because you end up accelerating faster, but not going so fast between lights etc. so where I used to go up to maybe 65 (kms) in a block, now I spend a bit longer in 'cruise' before I have to brake.
Also, obviously, it removes the possibility of a ticket.
I am currently getting 31mpg (26us) around town over 10,000 km and a lot more on trips e.g. 40+mpg recently.
Just for a laugh, my colleague, who bought a Ford Falcon (5.4litre V8) (like a new version of the Granada), is currently getting 14mpg (12us) around town.
In NZ, petrol is a lot dearer than diesel too, so I am saving both ways.
I did not fill the car up at all in August (!!!!)
At 50km or 30mph the car will stay in third.
At 52km or 31 mph it will shift into fourth.
I use this around town all the time, just set the limit and keep your foot flat to the floor. It is actually more efficient than driving normally, because you end up accelerating faster, but not going so fast between lights etc. so where I used to go up to maybe 65 (kms) in a block, now I spend a bit longer in 'cruise' before I have to brake.
Also, obviously, it removes the possibility of a ticket.
I am currently getting 31mpg (26us) around town over 10,000 km and a lot more on trips e.g. 40+mpg recently.
Just for a laugh, my colleague, who bought a Ford Falcon (5.4litre V8) (like a new version of the Granada), is currently getting 14mpg (12us) around town.
In NZ, petrol is a lot dearer than diesel too, so I am saving both ways.
I did not fill the car up at all in August (!!!!)
Last edited by johna1; Sep 16, 2004 at 04:43 PM.
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Joined: Jul 2004
Posts: 111
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From: DFW
'05 E320 CDI, ‘10 E63, ‘13 SL63, Sprinter 170
I have been getting 23-24mpg in mostly stop and go. Still on my first tankful. My diesel pickup that I own experienced 3 mpg gains between new and broken in for city mileage.
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Joined: Sep 2003
Posts: 783
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From: Murrieta, Southern California
Late Built 2005 W-211 E-320 CDI
Questions?
Originally Posted by johna1
A little tip if you use the speed limiter function....
At 50km or 30mph the car will stay in third.
At 52km or 31 mph it will shift into fourth.
I use this around town all the time, just set the limit and keep your foot flat to the floor. It is actually more efficient than driving normally, because you end up accelerating faster, but not going so fast between lights etc. so where I used to go up to maybe 65 (kms) in a block, now I spend a bit longer in 'cruise' before I have to brake.
At 50km or 30mph the car will stay in third.
At 52km or 31 mph it will shift into fourth.
I use this around town all the time, just set the limit and keep your foot flat to the floor. It is actually more efficient than driving normally, because you end up accelerating faster, but not going so fast between lights etc. so where I used to go up to maybe 65 (kms) in a block, now I spend a bit longer in 'cruise' before I have to brake.
What rpms are these speeds, and is the T/C engaged at those minimum speeds?
Speed limiter? What's that? Do you mean the cruise control?
With your pedal to the metal, doesn't that overide the CC?
Please explain?
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Joined: Sep 2003
Posts: 351
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From: Christchurch, New Zealand
17 E220D, 11 E350 CDI(sold), 06 CLS320 CDI (sold), 05 Cadillac DeVille (gone), 04 E320 CDI (sold)
At about 50km/h it will be doing 1300 rpm in third and about 1000 rpm in fourth. If T/C is turbo charger then I doubt it!
The W211 has a speed limiter as well as a cruise control. The cruise control is conventional, and the speed limiter works off the same stalk, but sets a maximum speed. So if you set the speed limiter to 55km/h then you can drive normally, but at 55km/h it stops accelerating and just sticks at that speed. If you push the accelerator beyond the kick-down point then that disables the function. This is a lot more useful round town than cruise control, because that keeps cutting out as you slow down and speed up.
In some ways they are inverses, because the CC will let you go faster then will revert to your set speed, so it is a kind of minimum speed. The limiter will let you go slower but retains its set maximum.
The W211 has a speed limiter as well as a cruise control. The cruise control is conventional, and the speed limiter works off the same stalk, but sets a maximum speed. So if you set the speed limiter to 55km/h then you can drive normally, but at 55km/h it stops accelerating and just sticks at that speed. If you push the accelerator beyond the kick-down point then that disables the function. This is a lot more useful round town than cruise control, because that keeps cutting out as you slow down and speed up.
In some ways they are inverses, because the CC will let you go faster then will revert to your set speed, so it is a kind of minimum speed. The limiter will let you go slower but retains its set maximum.
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by Daisy
I've done 20,000 miles and have an average of 35mpg. On a long motorway journey the average is usually 40-42mpg.
Have you had your first service yet, and if not when is it due please?
Nice car
Regards,
John
A very wet Torquay
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Joined: Sep 2003
Posts: 783
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From: Murrieta, Southern California
Late Built 2005 W-211 E-320 CDI
Clarification!
Originally Posted by johna1
If T/C is turbo charger then I doubt it!
Sorry, I should have explained better.
By T/C, I meant the torque convertor, referring to it being engaged, or locked up.
This means that when the tranny is in a held gear ratio, the transmission will act
like a standard transmission, and there will be practically no slippage.
You loose fuel economy when there is torque convertor action because fuel is being needlessly wasted heating tranny fluid. When the T/C is locked up or engaged, this energy is not being wasted, and it directed to the drive wheels without this needless loss.
You'll notice that the engineers finally got this right when they included this feature in all ratios of the new 7 G-tronic.
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Originally Posted by glojo
Hi 'Daisy'
Have you had your first service yet, and if not when is it due please?
Have you had your first service yet, and if not when is it due please?
Super Member
Joined: Sep 2004
Posts: 551
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From: Virginia
2005 Carlsson CD32 E320 CDI Inline-6
Same fuel economy here....
I have been getting 23-25 MPG average, with a lead foot.
Best was 32 MPG on a trip w/ 3 passengers, A/C on, and 65 MPH plus some stops.
I thought it would be better, too, but I'm not concerned, how many 4000 lb cars get 23 MPG with leadfoot drivers? I get about 16 in my Honda Accord.
KB
Best was 32 MPG on a trip w/ 3 passengers, A/C on, and 65 MPH plus some stops.
I thought it would be better, too, but I'm not concerned, how many 4000 lb cars get 23 MPG with leadfoot drivers? I get about 16 in my Honda Accord.
KB
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Joined: Mar 2003
Posts: 37
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From: UK
w211
Noticed that on my 270CDI (2000mile only)the mpg is really bad on cold start up (here in the 9C UK).
Tried for the last couple of mornings to allow the car to warm up on the drive for 5 minutes before setting out.
Got my first 60mile round trip at 40mpg average.
Before I've been looking at 35ish mpgs for similar trips....
Tried for the last couple of mornings to allow the car to warm up on the drive for 5 minutes before setting out.
Got my first 60mile round trip at 40mpg average.
Before I've been looking at 35ish mpgs for similar trips....
Senior Member
Joined: Dec 2002
Posts: 452
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From: Germany
on my E320 CDI i am able to drive around 750KM and the consumption is around 7.2-8.2l/100
I have been trying the SHELL V-Power Diesel and was able to drive 800KM with average of 6.9l/100
I guess you guys will have to convert the number yourself :p
mike
I have been trying the SHELL V-Power Diesel and was able to drive 800KM with average of 6.9l/100
I guess you guys will have to convert the number yourself :p
mike
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From: Torquay, England
E-class E300e Estate, Sprinter (stretched limo)
Originally Posted by mike82y
BTW what engine oil do you guys use???
I DO like these CDI engines!!
Regards
John
Bed-time in Torquay (Goodnight)
