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Mercedes C200K Sports AMG
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Discussion Starter #1
Hi guys, for those of you who do have a C180/C200 K, what are you getting in start-stop-start-stop traffic to the kilometer (not miles)? I'm getting between 10L-12L depending on how hard I drive. If I drive very conservative, its about 10.5-11L (freeway is about 8-8.5L).

Also, out of a full tank I'm getting just up to 500km... but I drive 80-90% start-stop short-trip routes at the moment.
 

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2010 C200 CGI /W203/SLK230/W202/230E/280SE
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Conservative suburban driving gives me down to 8.7litres/100km -the first 200 metres it shows up to 20L/100 and progressively goes down to about 10L until it warms up (3-4Km)

If I drive beyond 4-5 kms I can sometimes get down to 8.7L in suburbs -I try and avoid the city centre.

It took me a while to figure out that poor suburban economy is not only due to a cold motor, it's because you never get into top gear.

We have a 300 km straight freeway shot to Canberra and recently got an average (of 2 ways on the 100k to Berrima and back) of 5.75 L/100kms at a steady 112km/hr - I could hardly believe it.

I run on 95 octane with a dash of 98 occasionally -('03 C180 -- 70,000kms)

Oberoi
 

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Discussion Starter #3 (Edited)
We have a 300 km straight freeway shot to Canberra and recently got an average (of 2 ways on the 100k to Berrima and back) of 5.75 L/100kms at a steady 112km/hr - I could hardly believe it.
That is almost unbelievable! My best was about 7.X when driving down south at 110km/h for a few hours. I wonder why yours is getting such good economy.

Here are the official stats:
Used Car Research - Used Car Prices - Compare Cars - RedBook.com.au

I wonder why min's not doing that good.

How many KM's do you get to a tank (provided you fill up when the trip meter shows about 10-20kms of fuel left).
 

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It might have something to do with being a bit uphill one way (to the southern highlands) and slightly downhill the other. (but nothing like your run up Greenmount- not a noticeable climb) - EDIT - just checked - it's only 600 - 900 metres above sea level - not a big deal!

I reset the computer at the start and got 6.7 to Berrima and reset it on the return to Sydney -4.8 L/100 - average 5.75 - cool weather 14-20C

I would think that forgetting the Berrima bit, I would expect about 7 on a run to Canberra - I've done it but didn't calibrate my readout.

I noted the official figures in the handbook also - Technical data Fuels - C180 saloon -auto - urban 12.4 - extra urban 6.1 (you are talking litres/100 kms?)

The car has Michelin Energy tyres (which I don't particularly like) but it may have something to do with it

I'm using Nulon synthetic 5W-40 with their 80,000km additive(ptfe?) - new platinum plugs also at 68,000

Can't help on the tankful issue as we have to top up on certain days to get advantageous prices (varies by 15c litre on the right/wrong day)

What year is your car? - later models had different valves I'm told

Oberoi
 

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Discussion Starter #6
(you are talking litres/100 kms?)
Yes, or whatever the readout is on the trip computer on dash.

Where are the official handbook stats? In the cars manual or do is there a link online? I know redbook can be wrong because the 0-100km/h stats are wrong on redbook for my car.
 

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The fat Owners Manual near the back under 'technical data'

Mine quotes UK figures also which are not relevant to us and has something to do with pulling away in 2nd gear!!!

There are 'saloon' and 'estate' figures

Litre/100kms - I had to ask as I have a friend who quotes me 'kms per litre' all the time - very sensible but not when the rest of the country uses l/100km

Oberoi
 

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Had to go the 115 kms to Berrima yesterday and re-checked the consumption figures. almost as good as before.

229 kms - 115 each (way no significant wind -mostly at 112km/hr) - 5.91litres/100

There's about 10km suburban running in there to bring the average speed to 100km/hr

BTW it took about 15 kms from a cold start to settle down into good consumption figures which explains why we get fairly ordinary consumption around town

Oberoi
 

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Discussion Starter #9
Nice fuel figures... I put the Benz into manual mode and find I can get around 10L in very very peak hour traffic in the middle of the CBD on the way home.
 

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Discussion Starter #10 (Edited)
I drove her on the freeway yesterday, I drove very economically minded and reset the sats when I came off the on-ramp. I drove about 5-6 kms only (it was a short trip) at 100km/h and I got it down to 6.7. Not bad. I would like to take a longer trip someday to see if I can get 5.8 like you.

I'm also putting the car into manual mode more switching to a higher gear sooner... I think its also made a difference.

PS
Can you tell my favorite Top Gear episodes are the ones where they do their fuel economy challenge (maybe I shouldn't have gotten the model with the AMG sports kit) :-D
http://www.topgear.com/uk/video-search?Phrase=fuel&Urn=the-one-tank-challenge-1
 

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That sounds about right - seems like your only problem is driving in the CBD!

Oberoi
 

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How many KM's do you get to a tank (provided you fill up when the trip meter shows about 10-20kms of fuel left).
Tank down to 20kms left before filling - 485 kms suburban driving only

PM sent with more details

Oberoi
 
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