Miles to empty
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Newbie
Joined: Dec 2018
Posts: 9
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2019 C43
Miles to empty
Just had to fill up for the 2nd time with gas since getting my car. I noticed the miles to empty disappeared once it got under 30 miles and I couldn’t find it again. It just said fuel level low. Am I missing something??
Super Member
Joined: Nov 2018
Posts: 510
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From: Dallas Texas USA
2023 AMG EQE 53
He's right, at that point you have probably about a gallon or two of gas in the tank and as you drive the fuel pump sucks air which is not good. Besides all the crap settles to the bottom of the tank also and you really don't need the pump to work on that. Remember, it calculates the miles to empty based on the your recent consumption so the same number of gallons might read different whether you're idling or driving in stop and go or one the highway. It's a long walk with a fuel gas if anyone even has one anymore.
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Former Vendor of MBWorld
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Just a warning.. the red gas tank symbol right? The range (even when it said you have 30 miles) is an estimate based off recent mileage and driving habits... once you see the low fuel pop up, you should go sooner than later.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 1,283
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From: Michigan
2017 C43 AMG
if you get the engine ecu or fuel pump update (not sure which one), it will go down to 20 miles per gallon. it might be insturment cluster update too. that was always my complaint before was it went to the car symbol too early.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 1,283
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From: Michigan
2017 C43 AMG
Idk, I’ve done it for many years, many different c class. Never had a fuel pump fail or any issues. As long as there is gas in the tank, it will get sucked up. Unless you are on a track or doing hard corners where it could suck up air, even then, your pump won’t over heat instantly. I call this a myth.
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TBD
Senior Member
Joined: Sep 2014
Posts: 367
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From: Mississauga Canada
2025 CLE 53 Cabriolet
He's right . After the initial warning at 50 km or 30 mi ,if you hit the OK button the mileage will continue to show - I've never let it get below 30 km but I assume it shows all the way to 0..I really like this feature .
Super Member
Joined: Aug 2003
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From: Bayarea, California
2003 C320 coupe/c450 in Feb 2016
after the initial warning, after you press ok, it will continue to show miles. but when it reached the last gallon, like at 25 miles, it will stop showing miles left even after pressing ok.
MBWorld Fanatic!
Joined: Sep 2018
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From: New Orleans Area
2015 E400 Sedan
All I know is fill up before it hits "W"
W= WALK!.
I would not trust accuracy as it is guessing at fuel in tank since sloshing around and actual amount...
then it car has no idea how you will drive in couple of miles.
And we do not want to get air in fuel lines cause then a PIA to start since you hve to get fuel baco u pto injector fuel rail under pressure which is hard to do with air in line
W= WALK!.
I would not trust accuracy as it is guessing at fuel in tank since sloshing around and actual amount...
then it car has no idea how you will drive in couple of miles.
And we do not want to get air in fuel lines cause then a PIA to start since you hve to get fuel baco u pto injector fuel rail under pressure which is hard to do with air in line
Super Member
Joined: Jun 2018
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AMG C43 3LV6
Im like you, or rather have learnt on here that yes running low can and will damage the fuel pump.
Super Member
Joined: Aug 2003
Posts: 772
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From: Bayarea, California
2003 C320 coupe/c450 in Feb 2016
I just got a brand new 2019 c300 loaner with 18 miles on it.
on the gas cap, it said use 91 gas.
will it harm the engine if i put 87 gas?
i kinda feel guilty about it, so i filled it with 91.
on the gas cap, it said use 91 gas.
will it harm the engine if i put 87 gas?
i kinda feel guilty about it, so i filled it with 91.
Super Member
Joined: Nov 2017
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2018 Mercedes C43 AMG Coupe
Reason being, turbo engines use premium.
MBWorld Fanatic!
Joined: Feb 2016
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From: Portland, OR
C450, GLC43
Running empty is bad for the fuel pump. Running empty causes misfires which is bad for the engine and the cats. Misfires are even worse for a forced induction engine than they are for a NA engine.
Running your vehicles low on fuel is dumb for other reasons besides mechanical. Think about natural and man made disasters, or other events that may disrupt the fuel supply chain.
Running your vehicles low on fuel is dumb for other reasons besides mechanical. Think about natural and man made disasters, or other events that may disrupt the fuel supply chain.
