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C300 Fuel efficiency

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Old Apr 22, 2022 | 02:56 PM
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2020 C300 4Matic
Originally Posted by justanick
Today I realised my C250 after full tank it shows 580km and before I even rolled the wheels it showed 20L/KM. WTH !!!
do you guys get the same / similar reading?
I think it calculates based on the MPG of your last trip. I have observed this too.
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Old Apr 23, 2022 | 11:46 AM
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I did something today and it brought the L/100km down. While I was driving I reset the start trip mileage clock. I drove on Eco and on average got 8-9L/100km.
I then drove on Comfort and did exactly the same thing on average I got 9-10 L/100km.
I noticed I always start 20L/100km if I reset everything.
is something wrong with my electronic fuel gauge or you guys get the same?
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Old Apr 23, 2022 | 12:55 PM
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2020 C300 4Matic
Originally Posted by justanick
I did something today and it brought the L/100km down. While I was driving I reset the start trip mileage clock. I drove on Eco and on average got 8-9L/100km.
I then drove on Comfort and did exactly the same thing on average I got 9-10 L/100km.
I noticed I always start 20L/100km if I reset everything.
is something wrong with my electronic fuel gauge or you guys get the same?
I never tried resetting. But can try this next time I go on a trip.
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Old Apr 23, 2022 | 02:22 PM
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How much efficiency do you get for city driving and high way? Are you on comfort setting?
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Old Apr 23, 2022 | 02:57 PM
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Originally Posted by justanick
How much efficiency do you get for city driving and high way? Are you on comfort setting?
I don’t drive much on highways. But I get 9.1 in the city. I drive on comfort all the time.
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Old Apr 23, 2022 | 06:02 PM
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2015 C400 4MATIC Palladium Silver Metallic
Originally Posted by dhaval
Hello All,

What fuel efficiency you get with your C300? I am getting 9.1 litre per 100km. I mostly drive in comfort mode. Not sure if it’s bad.

Anyone drive in sport or sports+ all the time? What’s the fuel efficiency you get?

Regards,
Dhaval
Not exactly an apples to apples comparison, but here is the trip meter after a longish highway trip in my wife's C400 (we call her Fraulein). This is through some pretty steep mountain passes in comfort mode 100% of the time, consumption on flatter terrain would have been better (2015 C400 with 93,000 Miles).

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Old Apr 23, 2022 | 10:43 PM
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That’s great for C400 7 L/100km.
I’ll be going on a trip tomorrow and will definitely check again by resetting the start trip.
My car’s ODO is 58,000 KM. I called my dealership they said it’s normal cause it’s C250 with higher power engine. You guys have more powerful engine C300 C400 and getting a better mileage. Not sure what’s wrong with my car.
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Old Apr 24, 2022 | 05:02 AM
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Mine is 2 ltr turbo.
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Old Apr 28, 2022 | 02:39 AM
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Hi all I did 530km 50km average speed and got 8.1 L/100km (aircon on plus in Comfort mode)huge improvement from 13 L/100KM city driving.
Is city driving this bad of a mileage for my car?
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Old Apr 28, 2022 | 06:17 AM
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Originally Posted by justanick
Hi all I did 530km 50km average speed and got 8.1 L/100km (aircon on plus in Comfort mode)huge improvement from 13 L/100KM city driving.
Is city driving this bad of a mileage for my car?
City mileage is always bad. It’s because we break a lot and stop a lot.
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Old Apr 28, 2022 | 10:16 AM
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Does that mean our start stop function is consuming more fuel and puts pressure on our car? We you turn it off?
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Old Apr 28, 2022 | 11:06 AM
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Originally Posted by justanick
Does that mean our start stop function is consuming more fuel and puts pressure on our car? We you turn it off?
No, I was talking about breaking the car more in city traffic than on highway has a huge impact on efficiency.
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