Mercedes With Most MPG
Mercedes With Most MPG
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gt350

Original Poster:

27 posts

163 months

Thursday 9th May 2013
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Hey everyone,

Recently been to-ing and fro-ing between BMW 1 Series and any Mercedes comparable on the fuel economy. Personally I'd like to go for a change to Mercedes but I want something that looks good and has good fuel economy.

The car I looked at getting was a second hand C class from 2004 but it did 37MPG from new, which most likely decreased over time. I'd therefore like to find out which Mercedes model has the best fuel economy but also looks nice?

Any help would be appreciated smile

FalconWood

1,373 posts

226 months

Thursday 9th May 2013
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This is nowt to do with your question but interesting and frustrating!!

I was running an experiment on my S65 yesterday and for the first hour and at 60 miles distance from the middle of Birmingham to J18 on the M6 I achieved 24.6 miles per gallon!! That is a 20% improvement over the book claim. Great but admittedly boring driving. THEN it took me 2 hours to do 11 miles between the J18 and the top of Thelwall Viaduct and it dropped to 18.3 mpg!!!!!!!!!!!! Proves you use a lot of juice just sttttanding still and that stop start technology must work to improve mpg!!

Moral of my story is - it is possible to drive in an enviromentally friendly fashion in a 6 litre but actually it is not worth it!!

FalconWood

1,373 posts

226 months

Thursday 9th May 2013
quotequote all

This is nowt to do with your question but interesting and frustrating!!

I was running an experiment on my S65 yesterday and for the first hour and at 60 miles distance from the middle of Birmingham to J18 on the M6 I achieved 24.6 miles per gallon!! That is a 20% improvement over the book claim. Great but admittedly boring driving. THEN it took me 2 hours to do 11 miles between the J18 and the top of Thelwall Viaduct and it dropped to 18.3 mpg!!!!!!!!!!!! Proves you use a lot of juice just sttttanding still and that stop start technology must work to improve mpg!!

Moral of my story is - it is possible to drive in an enviromentally friendly fashion in a 6 litre but actually it is not worth it!!

gizlaroc

17,251 posts

253 months

Thursday 9th May 2013
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I had an E320 V6 petrol estate and it returned 28mpg average, 34 on a run.
I then had a 2007 E320cdi estate, and then averaged 36mpg and would do 44 on a run.
I then had an E350cdi estate, 2010 so pre facelift and 7 g tronic plus gear box, that returned 33 average and 38 on a run.

I have got a 2001 c220 cdi auto estate at the moment and that is averaging 47mpg, and can easily do 55mpg on a run, have even seen 70 over 200 miles sat at 70mph.


However, others with the same car say they only average 35mpg, so depends on the driving.

But the c220cdi is the most economical car I have ever owned. I had a 55 plate 120d auto and that was terrible!! 32 average and really, struggled to hit 38 on a run. Round town was 26,
I then swapped that for a 57 plate 320d touring and that was always 40+ and could see 70 on a run.



You need to take them out, depends how you drive, and by that I mean someone who sits at 70mph may like a 1.6d, where as if you sit at 85mph you may find a 3.0d with better gearing gets you more mpg.


Deva Link

26,934 posts

274 months

Thursday 9th May 2013
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gt350 said:
The car I looked at getting was a second hand C class from 2004 but it did 37MPG from new, which most likely decreased over time. I'd therefore like to find out which Mercedes model has the best fuel economy but also looks nice?

Any help would be appreciated smile
That's a hard question to answer. If you're looking at C Class (W203) it was facelifted in mid 2004 and the facelift ones are considered to be much better all round.

The 4 cyl diesel engines are capable of 50 MPG - on a long, steady speed, run.

If your typical use is driving 5 miles in busy traffic to work then you'll be doing well to get 30MPG, especially in an auto.

st4

1,359 posts

162 months

Thursday 9th May 2013
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The newer C classes with 7g plus and the OM651 2.1 engines move the game on. Mine, a OM611 2009 Pre blue efficiency struggles to reach 50mpg (estate) but on a run will do hgih 40's. The MPG isn't great.

Speaking to an owner of a blue efficiency car which I followed on a lake district tour with an MB Forum, he got 40mpg, I was on 32mpg so the newer boxes and engines do help. And we weren't driving on economical routes

Dunit

645 posts

234 months

Thursday 9th May 2013
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My W204 C200 cdi auto is showing on the B trip 22000 miles at 42.6 mpg and 42 ave mph which is good for a pre Blue Iffy considering it gets driven hard . Also only ever use cheap Morrisons diesel.

ecain63

10,651 posts

204 months

Thursday 9th May 2013
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My 2010 PP+ C63 is showing 24mpg on the morning commute. Starts off at around 16mpg whilst it warms but after a couple of miles its up to low 20's and then sits happy at 24mpg.

gizlaroc

17,251 posts

253 months

Thursday 9th May 2013
quotequote all
st4 said:
The newer C classes with 7g plus and the OM651 2.1 engines move the game on. Mine, a OM611 2009 Pre blue efficiency struggles to reach 50mpg (estate) but on a run will do hgih 40's. The MPG isn't great.

Speaking to an owner of a blue efficiency car which I followed on a lake district tour with an MB Forum, he got 40mpg, I was on 32mpg so the newer boxes and engines do help. And we weren't driving on economical routes
Or the older ones.

It seems that for some reason the later models seem worse for mpg.

Maybe pre and post DPF??

dudleybloke

20,553 posts

215 months

Thursday 9th May 2013
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Alex L

2,592 posts

283 months

Thursday 9th May 2013
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ecain63 said:
My 2010 PP+ C63 is showing 24mpg on the morning commute. Starts off at around 16mpg whilst it warms but after a couple of miles its up to low 20's and then sits happy at 24mpg.
You're doing well can't get our non PP much higher than this, did manage 21 today


ecain63

10,651 posts

204 months

Friday 10th May 2013
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Alex L said:
ecain63 said:
My 2010 PP+ C63 is showing 24mpg on the morning commute. Starts off at around 16mpg whilst it warms but after a couple of miles its up to low 20's and then sits happy at 24mpg.
You're doing well can't get our non PP much higher than this, did manage 21 today

I'll take a pic this morning and put it up later.

ecain63

10,651 posts

204 months

Friday 10th May 2013
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Sorry, camera on the phone. Averaging 22mpg over the 1000 miles ive owned it.


Alex L

2,592 posts

283 months

Friday 10th May 2013
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I must try harder, we've done almost 1000 miles this week in it and not hit 20 yet

HarryW

16,013 posts

298 months

Friday 10th May 2013
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I've got a 13 plate E220 auto (W212?) and its still running in with less than 500 miles on it. I'm averaging 43mpg on a 14 mile commute mainly in traffic.
On the motorway I played at various speeds and can see 80mpg crusing at around 60 on the flat and 45mpg at 80. Hoping for a 50+ average once its lossened up.
Not bad for a large car that parks itself!

merc_man

1,926 posts

231 months

Friday 10th May 2013
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My earliest Merc was an E220 Cdi (Y Reg model) that regularly returned 50 mpg on motorway runs but I don't have a heavy foot. I assume today's are comparable.

My current 2006 CLK (220 Cdi sports), which I've only had a week or so, is currently averaging 37 mpg but I'm not doing many motorway miles.

gizlaroc

17,251 posts

253 months

Friday 10th May 2013
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Just finished speaking with a guy outside my shop, he has a new shape e220cdi se auto, with just 3k miles on the clock it is showing 48mpg, which he is very pleased about.

dalenorth

930 posts

196 months

Friday 10th May 2013
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I've had many petrol and diesel mercs in my time of all ages, but my clk270cdi amazes me, I'm averaging 47mpg on a daily 4 mile commute.

st4

1,359 posts

162 months

Saturday 11th May 2013
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gizlaroc said:
Or the older ones.

It seems that for some reason the later models seem worse for mpg.

Maybe pre and post DPF??
DPF don't help but its the newer 7g + boxes that do offset it.

Still, I'd rather drive with a 5g and pay more at the pumps :P

va1o

16,111 posts

236 months

Saturday 11th May 2013
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gt350 said:
I'd therefore like to find out which Mercedes model has the best fuel economy but also looks nice?
Probably the new W176 A180 CDI paired up to a manual gearbox! It's their only model to date with less than 100g/ km co2 emissions and highest fuel economy. Trade off is it uses a Renault sourced 1.5 diesel.