Miles Per Gallon

[SimonsMerc]

E320 CDI, 2000/W reg, 18mpg round town, 30 odd on the motorway, 25 mixed run. Still trying to work out why the hell it drinks like a petrol - it should be closer to 25/36/44 :-(

One theory - would non-synthetic oil drastically increase the amount of diesel used? Not sure what the cowboys that sold me the car put in...

-simon

 

[KLP 92]

S500
550 miles to a full tank on the motorway, 270 miles on a tank in town, 29mpg average on motorway and about 18mpg town runs.

C280
31mpg on motorways and 22mpg town runs

SL500
22mpg on motorway
14mpg in town

S600
25mpg on motorway
13-14 mpg in town

 

[fuzzer]

Just interested to see how my mpg stacks up with other MB's

Out of my C200K manual I am managing 33.5mpg on my journey to work have hit 34.4 once :bannana: My 318Ci only managed around 32 mpg.

To me seems quite good for the engine/size of car any one prepared to declare there mpg?

My C180k auto will do 42mpg at 80 on the motorway and about 25-27 in the town.

Which isnt bad

 

[guydewdney]

S500
550 miles to a full tank on the motorway, 270 miles on a tank in town, 29mpg average on motorway and about 18mpg town runs.

140 series?

hmm - i get 21 / 22 average with m/way getting to 23 at ..um.. 85 ish occifer..

summat wrong there then.

 

[KLP 92]

140 series?

hmm - i get 21 / 22 average with m/way getting to 23 at ..um.. 85 ish occifer..

summat wrong there then.

W140, but i drive at 60-70mph constant when i do the Oxford runs in the morning. Yeah if i do 80-85mph it comes down to 24-25 mph. Bearing in mind at 65mph i am doing under 1500 revs and the economy needle is near the 35mpg. i get a full week of 5 return trips to oxford on a tank of petrol and when i fill the tank out i work out the economy as i do on all my cars and it equates to 29mpg. I know i thought its too good to be true but i've checked it twice on different occasions and its right! The car has been superchipped by the previous owner, so maybe their claims of better fuel economy are true!

 

[peterchurch]

on a flat piece of road it is probably better to use cruise because you will be maintaining the same speed/revs throughout, but when you come to hills I think a different strategy is required, just not sure what .

The trick is to gain speed on the flat and then make sure that you do not accelerate on the way up the hill, But use the extra speed to climb the hill. Not as easy as it sounds I have a very steep hill by me and I can rinse almost a 6th of a tank climbing it if I drive like a pr@t

 

[kusanku]

My E320cdi computer suggests I get an average of 43 mpg on the motorway, and 26-28 urban, depending on traffic, which I'm well pleased with. Previously had a C220cdi, without trip computer, but fuel bills seemed fairly similar.

 

[glojo]

My own personal thouhts are:

1. It is more economical to drive without the cruise control unless it is a nice clear, flat fairly straight road. If you listen to the cruise control it can be 'quite forceful' during acceleration. If it comes to an incline its response is far more aggressive than someone who is driving in a more economical fashion.

2. It is not a good idea to continually see how far you can drive on a tank of fuel. 'Muck' will eventually accumulate at the bottom of any fuel tank, and over the long term it builds up. It is interesting to see how many miles we can go on a tank of fuel, and I am certainly NOT saying that it is wrong to do it.

Just my personal thoughts and I am enjoying reading every one elses views.

Does anyone believe it is indeed more economical to drive long distances using cruise control and if so why?

Thanks everyone,
John

 

[Vlad]

My scores are as follows;

W202 C280 lots of motorway work...I used to get an average of 32mpg

W124 E280. Lots of motorway...average 27mpg

W124 300D. Lots of motorway...average 36mpg

W210 E220 Cdi. Lots of motorway....average 44mpg with a best ever tank of 50mpg...amazing for a big car and 24,000 miles between services...one of the cheapest cars I have ever run!

 

[DITTRICH]

...one thing relating to fuel consumption...

1 Estimating how fast a car eats petrol whilst idling at the lights. I tried to calculate this for my W202 C230K and got a figure of 2.5 litres per hour (3.5p per minute). I won't bore you with the calculation. Any thoughts?

I do alot of London driving and jams are a fact of life. Sometimes, you can switch off, but at others traffic moment is so stop-start-haphazard that its not worth it. I know the shortest time the journey can take and use the "excess" time (actual - shortest) to calculate wasted fuel. I can then calculate a more realistic MPG figure.

Rgds

Les

 

[Subyland]

Having read the post about another potential trip to Germany, may some of the "veterans" can share with us the sort of mpg achieved during such trip ??? :bannana:

 

[Maff]

Having read the post about another potential trip to Germany, may some of the "veterans" can share with us the sort of mpg achieved during such trip ??? :bannana:

I lost count of MPG

From memory I was getting about 21-22mpg on the autobahn which wasn't too bad.

 

[colin.dillon]

There must be something wrong with my E300TD - I'm only getting 25 to the gallon driving mostly around town! I was happy until reading other peoples' post as I'm getting 16 out of my V6 Espace.

Col

 

[Dieselman]

There must be something wrong with my E300TD - I'm only getting 25 to the gallon driving mostly around town! I was happy until reading other peoples' post as I'm getting 16 out of my V6 Espace.

Col

If your journeys are mainly round town and short then 25 is quite possible, but low.

Just try being a bit more gentle on pull away and anticipate the next red light and you should increase this figure.

I have only once achieved a low of 25, but it was fun doing it.

Check all the usuals, tyre inflation, binding brakes, etc. Also if the MAF sensor is faulty or the EGR valve is sticking open then this will cause low MPG.

It's probably just the journeys you do though.

 

[peterchurch]

Hi,
I fitted my shiny pedals on thursday :bannana: and I have found that they seem to have increased my fuel economy by a almost a 1/4 although this does not seem possible the only thing that can think of it that the lighter feel to the throttle pedal has give me finer control over the acceleration and overall speed. I will need to do more tests to prove this is what has happened (swap the throttle pedals back and fouth a few times and record MPG)

:bannana: see there was a rational excuse to getting them after all


Peter

 

[colin.dillon]

If your journeys are mainly round town and short then 25 is quite possible, but low.

Just try being a bit more gentle on pull away and anticipate the next red light and you should increase this figure.

I have only once achieved a low of 25, but it was fun doing it.

Check all the usuals, tyre inflation, binding brakes, etc. Also if the MAF sensor is faulty or the EGR valve is sticking open then this will cause low MPG.

It's probably just the journeys you do though.

Already tried driving like I had a flat cap on!! - how do I check if the MAF is faulty or the EGR is sticking open

 

[Thejestersshoes]

I have a 2004 E320cdi & how ever I drive it will not return over 40mpg! I average about 27mpg. A couple of other points of interest about the car:
1/The icons around the top of the headlamp switch are not illuminated(very surprising as you cant see where the switch position is at night)
2/There appears to be only one rear fog lamp-has a bulb blown?-I cant belive MB only fit one!
3/Rain sensing wipers are useless - spend more time fiddling with the wiper switch
4/I'm really surprised at how much engine noise you get inside the car under moderate acceleration.
5/The heated seats are not warm enough! (compared to previous cars anyway)
6/The CD changer is really slow changing from one CD to another (standard MB 6cd in dash)
7/The air con is weak for a car of this size & quality
8/The folding mirrors should(in my view) automatically fold out when you drive away

A nice looking car (mine is Tealite with black leather) very comfortable - a little spoilt by some of the above points.
Thought i'd share my views with you - anyone have similar views?

 

[uumode]

1/The icons around the top of the headlamp switch are not illuminated(very surprising as you cant see where the switch position is at night)

I have an older W210 E240, and I'm sure the headlamp switch (without venturing out into the garage) are illuminated

2/There appears to be only one rear fog lamp-has a bulb blown?-I cant belive MB only fit one!

Yeah same here, though 'I think' that may be British Standards? Two might appear to be brake lights. (i.e. car looks like it's braking)

3/Rain sensing wipers are useless - spend more time fiddling with the wiper switch

Mine are very slow to react at times (too much droplet build up), though I had a C class courtesy car and that seemed to have improved sensitivity, and worked fine. Your E class is newer than the C.

4/I'm really surprised at how much engine noise you get inside the car under moderate acceleration.

I get a surprising amount of noise when the engine is cold, but goes away when warm.

5/The heated seats are not warm enough! (compared to previous cars anyway)

I don't have heated seats, so can't comment. A C class I tried seemed to be OK, though not hot, but then it wasn't a very cold morning.

6/The CD changer is really slow changing from one CD to another (standard MB 6cd in dash)

Yeah, it is a bit slow

7/The air con is weak for a car of this size & quality

I'm convinced the UK market (all makes of car) get a less powerful version than tropical climates, - unless aircon isn't as effective in the dry heat (radiated heat) of the UK, to more humid climates (which contain the heat in the moist air).

8/The folding mirrors should(in my view) automatically fold out when you drive away

That wouldn't work for me, as I fold the mirrors to get into my garage to limit the risk of scraping them on the sides. Though there perhaps should be a switch to engage or disengage the function, like the nearside dipping mirror on reverse gear.

 

[Aswall]

Average 24.5 and can get up to 29 on long motorway journeys and down to 19 when driving "spiritedly"

 

[anarchy-inc]

Average 24.5 and can get up to 29 on long motorway journeys and down to 19 when driving "spiritedly"

Ouch . . . guess thats the 240 for you. My CLK 200 gets 35-37 Hwy and 30 in town, unless I drive with a lead foot then it's more like 30 Hwy and 25 in town.