C63/C63S AMG
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Old Jul 1, 2015 | 12:30 AM
  #51  
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2015 C63s E1 Irridium silver, 2008 C300 rwd, 2007 Audi Q7 3.6 S line premium, 2002 Renault LagunaII
Originally Posted by Bespoke88
that sucks! i was really hoping the claims were close if not ace lol... this is way off

i know buying a v8 we shouldnt care too much about the gas, but still it's nice to save where we can and just in general less trips to the gas station as it is a hassle.

im assuming you are still in break in period? perhaps it will get a little better after? and are you flooring it with those averages?
Ending run in period now. 1500km mileage. Never floored. Not supposed yo for now. Never Sport+, Never Race mode yet.
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Old Jul 5, 2015 | 03:10 AM
  #52  
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2015 C63s E1 Irridium silver, 2008 C300 rwd, 2007 Audi Q7 3.6 S line premium, 2002 Renault LagunaII
As of now 1650km mainly uptown driving with very little, perhaps 20% highway. So far average 13.5l/100km.
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Old Jul 5, 2015 | 09:19 AM
  #53  
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Originally Posted by profi
As of now 1650km mainly uptown driving with very little, perhaps 20% highway. So far average 13.5l/100km.
For mostly city driving I think that's pretty good. City driving hurts all cars fuel consumption. Also the lie of the land makes a big difference, it's pretty flat all around where I live for instance.

On a UK forum the first guy with a C63S to post has said he's got 32mpg on a motorway run. So in U.S. mpg that's 26.6 mpg and in litres per km it's 8.8km/litre. Based on where he said he'd gone from and to that's about an 80 mile journey and he said with light traffic.

So it seems it is achievable to get very close to Mercedes claimed figures. Could just be climate, lie of the land, traffic or just your still driving it a bit too hard that brings it down

As mentioned before we didn't buy a fast car expecting high mpg or really caring but I was curious if the new engine could be as fuel efficient as Mercedes claims.

Last edited by FastLaneJB; Jul 5, 2015 at 09:23 AM.
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Old Jul 5, 2015 | 11:19 AM
  #54  
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Originally Posted by FastLaneJB
Hi new C63 owners,

Just wondering while most of you are still in your run in phase and having to hold back the beast, what sort of mpg are you getting?

Mercedes has some impressive claimed figures which no doubt are unachievable in the real world but what are you getting? Let us know how much city / highway driving that is for that figure and if you was driving normally Oh and what country as mpg in U.S. and UK where I am for instance isn't the same. Happy with that km / litre deal as well as we can convert it.

Be good if any of you had the first C63 to compare like for like trips and what difference your seeing. Not saying mpg is much of a problem when you can afford a car like this but just curious if Mercedes have managed to produce not only an amazingly powerful engine but one of the more fuel efficient ones as well. They claim it's the most fuel efficient V8 around.

Thanks all.
About 20-25. why buy are car like this and monitor??
Sorry need to update the pic
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Old Jul 5, 2015 | 01:58 PM
  #55  
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Originally Posted by sack5000
About 20-25. why buy are car like this and monitor??
Sorry need to update the pic
Well Mercedes is claiming this is the most fuel efficient V8. So it's interesting to see if that's really the case. That's all.

The other reason I guess is the last gen C63 had a small tank with a big thirst. This one has the same sized tank so needs better mpg so you don't need to fill up as often. As it needs 98 RON fuel that means planning when I fill up as not all garages here sell it by a long shot. Life will be easier if the range is reasonably high.
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Old Jul 5, 2015 | 04:06 PM
  #56  
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Originally Posted by FastLaneJB
As it needs 98 RON fuel that means planning when I fill up as not all garages here sell it by a long shot.

Where's that requirement stated? I have a copy of the (C class) manual and it states 95 RON/91 AKI.
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Old Jul 5, 2015 | 07:23 PM
  #57  
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Originally Posted by Delurker
Where's that requirement stated? I have a copy of the (C class) manual and it states 95 RON/91 AKI.
Here it is from the UK manual. It's pretty specific about not using 95 RON or if you do to not drive the car hard. Are you definitely checking the AMG requirements as smaller engined C classes are fine on 95 RON? Or maybe US cars come with a different tune.


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Old Jul 5, 2015 | 07:40 PM
  #58  
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I'm looking at the C class manual - it doesn't specify trim or engine size.

Not cool if this thing is not going to give max performance at 91 octane. Kind of adds to the argument for getting tuned if I'm going to be getting all my gas at Union 76 stations & mixing anyway (76 stations around here have 100 octane unleaded, only 87/89/91 octane everywhere else).
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Old Jul 5, 2015 | 08:22 PM
  #59  
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Originally Posted by Delurker
I'm looking at the C class manual - it doesn't specify trim or engine size.

Not cool if this thing is not going to give max performance at 91 octane. Kind of adds to the argument for getting tuned if I'm going to be getting all my gas at Union 76 stations & mixing anyway (76 stations around here have 100 octane unleaded, only 87/89/91 octane everywhere else).
It's quite hidden away in the manual here. It's the standard C class manual I'm looking at, there isn't a special AMG only manual. If your on the app (I'm using iOS) then it's in Owners Manual, Technical Data, Service products and capacities, Fuel

You cannot actually get 98 RON fuel in the UK. Standard is 95 RON (93 AKI I believe), BP does an Ultimate fuel which is 97 RON, Shell and Tesco do a 99 RON fuel. So I'll be putting in 99 RON but means I can only fill up at Shell or Tesco.

So I think the fuel efficiency for me isn't so much about the cost, it's about not finding myself in a situation where possible that I need to put 95 RON in. I want to keep it to 99 RON only. Not a big country though, the UK. I could probably get to most places and drive back home in my diesel 335d without having to fill up. Not so with the C63S but hopefully will be able to find the right stations if needs be without too much fuss.
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Old Jul 5, 2015 | 09:08 PM
  #60  
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I believe 95 RON is closer to 91 AKI usually, with 98 RON equating to 93 AKI. In California, you can normally only get 91 AKI, although some Union 76 stations have 100 octane for a premium price.
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Old Jul 5, 2015 | 09:15 PM
  #61  
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Originally Posted by Delurker
I believe 95 RON is closer to 91 AKI usually, with 98 RON equating to 93 AKI. In California, you can normally only get 91 AKI, although some Union 76 stations have 100 octane for a premium price.
Yeah I think that's right. You'd think though if they are selling the car in the US and you cannot easily get 98 RON / 93 AKI then that's a problem. Maybe the car has a lesser tune on it? Do they still claim 510hp for the C63S in the US?

That or maybe it does need 98 RON / 93 AKI and people aren't aware? The first dealer I went to in the UK told me the car took 95 RON so some of them no doubt don't know either.

Be good to see a dyno of the car on 95 and 98 RON to see just what difference it does. Though according to the manual you shouldn't WOT with 95 RON.
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Old Jul 5, 2015 | 09:31 PM
  #62  
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Originally Posted by FastLaneJB
Yeah I think that's right. You'd think though if they are selling the car in the US and you cannot easily get 98 RON / 93 AKI then that's a problem. Maybe the car has a lesser tune on it? Do they still claim 510hp for the C63S in the US?

That or maybe it does need 98 RON / 93 AKI and people aren't aware? The first dealer I went to in the UK told me the car took 95 RON so some of them no doubt don't know either.

Be good to see a dyno of the car on 95 and 98 RON to see just what difference it does. Though according to the manual you shouldn't WOT with 95 RON.
US octane numbers are described as, e.g., 93 AKI or 93 CLC. The equivalent RON number in other countries would be 98. No problem obtaining this level in NC.
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Old Jul 5, 2015 | 10:14 PM
  #63  
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Originally Posted by HBerman
US octane numbers are described as, e.g., 93 AKI or 93 CLC. The equivalent RON number in other countries would be 98. No problem obtaining this level in NC.
Seems that's not the case across the country though based on what other people are saying as other side in California that's a problem. I guess people just need to take this into account before they buy this car that they can get the right fuel for it.
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Old Aug 28, 2015 | 05:02 PM
  #64  
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what's the verdict? is the 18/25 advertised accurate? sounds like it is. Not sure why google says 13/19
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Old Aug 28, 2015 | 06:06 PM
  #65  
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Picking my car up on Tuesday at last so I'll chime in soon on this but from what I've seen the official figures are pretty much achievable at least on the highway side. Obviously that means taking it really easy but still if you need to do a long highway trip where your not able to enjoy the car you can stick it on cruise, fire up some tunes and avoid stoping for fuel as much as possible.

City driving figures will probably be much harder to hit as your less likely to be taking it easy enough in such situations
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Old Aug 28, 2015 | 06:47 PM
  #66  
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anyone drive it mostly in stop and go traffic for commute, how's the mpg. that's what i'll be doing 90% of the time.
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Old Aug 28, 2015 | 11:48 PM
  #67  
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16~17l/100km start stop
8.5l/100km highway smooth cruising
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Old Sep 2, 2015 | 09:21 PM
  #68  
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My only concern with the low mpg is the unfortunate circumstance of pumping gas. Do you feel you're always at the petrol station?
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Old Sep 2, 2015 | 10:40 PM
  #69  
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Got my car yesterday and I've done a couple of trips both days with an average mpg on each day of 30mpg UK. That's I think 25mpg US. Both of these trips were mostly highway though on one of them I got stuck in stop / start traffic for around an hour. Around 2 - 3 hour trips in total.

To me that's extremely good. Obviously I'm running the car in but at the same time there's not so much scope to lower it when your cruising at highway speeds for ages. City driving of course will be a whole different ball game.

I believe when I filled up for the first time the car said it had a 360 miles of range. That's from a 66 litre tank that according to the manual has a huge 10 litre reserve which won't have been factored in on that range. So that's 360 miles from 56 litres of fuel. I guess if you do mostly city driving your going to want to almost half that distance.

If you was prepared to go into the reserve and doing highway with the higher mpg you'd probably be able to break 400 miles from a tank. For reference my diesel BMW 335d I traded in would get around 500 miles from a 57 litre tank though not sure how much of that was reserve. Once you factor in that diesels do much better mpg I think this is a great result for a car with around 200bhp more power and using a fuel with less efficiency.

Very pleased with my C63S so far and the fact it uses low amounts of fuel for what the engine is and capable of is a bonus.

Oh for reference I have a neighbour with a 320i (2 litre 4 pot) and she mostly just does city driving and I doubt pushes the car much at all. Her average is 28mpg UK. So 18 - 20mpg in the city if you pull that off to me again would seem rather damn good.
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Old Sep 3, 2015 | 04:54 AM
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I've done about 600 miles in mine and across a range of driving. On a motorway run of about 150 miles @ 80mph average with a section of around 30 miles of that at 70mph for average speed cameras I got exactly 30mpg as I rolled into Aberdeen.


Another run was about 60 mile round trip across some lovely Scottish glens. Some overtaking and relatively brisk running saw an average of 49 mph over the journey and an average consumption of 17.8mpg. I didn't think that was too bad really.


Finally my commute to work at the moment is exactly 7 miles (normally it's 3 but staying in rental house while ours is renovated ahead of baby arriving). The average speed is 12mph and consumption is 18.4mpg. The stop start is kicking in all the time which must help consumption. I may turn it off one day to see the actual difference.
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Old Sep 9, 2015 | 12:05 AM
  #71  
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Picked my car on Friday with 13 miles and over the weekend I put on about another 135 miles. So far with about 150 miles, I'm getting about 15 mpg with about 60 miles HW and the rest city driving. I'll see how it picks up after a couple of months.
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Old Sep 9, 2015 | 08:00 AM
  #72  
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I've had my car for two weeks. First couple of days mileage was pretty poor but I'm sure that's break-in related 13mpg avg. Since then the avg has steadily climbed up to 17mpg. This is all mainly city driving probably 75% city 25% hwy. Visited a friend the other day which was mainly hwy about 60 miles roundtrip and I avg 23mpg. The way up I drove in sport plus and the way back in comfort to see the difference which was 2 mpg.
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Old Sep 9, 2015 | 10:16 AM
  #73  
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Originally Posted by texasmade
Picked my car on Friday with 13 miles and over the weekend I put on about another 135 miles. So far with about 150 miles, I'm getting about 15 mpg with about 60 miles HW and the rest city driving. I'll see how it picks up after a couple of months.
Congats
I picked up to Sat. also and have close to 150 miles on it most in heavy traffic at 19.9mpg so far.
What I hope is getting to 1000mi so I can get the mileage to GO DOWN.


then I know the fun is starting.


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Old Feb 25, 2021 | 03:50 PM
  #74  
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Figured I would update this thread as I was curious when picking the kids up from school today. My average consumption over 26,529 miles (2 years) is 12.7 mpg. Curious what everyone else is seeing over the life of their car?
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Old Feb 25, 2021 | 04:34 PM
  #75  
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Originally Posted by W213e63s
Figured I would update this thread as I was curious when picking the kids up from school today. My average consumption over 26,529 miles (2 years) is 12.7 mpg. Curious what everyone else is seeing over the life of their car?
I am seeing 14mpg average being relatively nice with the car. I have no idea where all the really good numbers are coming from.
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