Sail Mode for C450
09-23-2018, 12:45 PM
#1
MBWorld Fanatic!
Thread Starter
Sail Mode for C450
Has anyone with a C450 used this? I rarely, if ever, use E mode on my 450. Well, I used it recently on the GLC43 when I anticipated a long run between available fuel stops and I thought the sail function was pretty cool. So later on I'm driving my C450 on the freeway and I engage E mode to see how the sail function works on the sedan...nothing, it never engages.
So my question:
Can some of you other C450 owners please confirm if the C450 does indeed have the sail function when operating in E mode? Please advise what region your from since there are software differences for different markets.
Please don't reply with answers for the C43. They have different transmissions and are not entirely apples-to-apples in this respect.
Thanks in advance.
J-
So my question:
Can some of you other C450 owners please confirm if the C450 does indeed have the sail function when operating in E mode? Please advise what region your from since there are software differences for different markets.
Please don't reply with answers for the C43. They have different transmissions and are not entirely apples-to-apples in this respect.
Thanks in advance.
J-
09-23-2018, 01:47 PM
#2
Senior Member
Has anyone with a C450 used this? I rarely, if ever, use E mode on my 450. Well, I used it recently on the GLC43 when I anticipated a long run between available fuel stops and I thought the sail function was pretty cool. So later on I'm driving my C450 on the freeway and I engage E mode to see how the sail function works on the sedan...nothing, it never engages.
So my question:
Can some of you other C450 owners please confirm if the C450 does indeed have the sail function when operating in E mode? Please advise what region your from since there are software differences for different markets.
Please don't reply with answers for the C43. They have different transmissions and are not entirely apples-to-apples in this respect.
Thanks in advance.
J-
So my question:
Can some of you other C450 owners please confirm if the C450 does indeed have the sail function when operating in E mode? Please advise what region your from since there are software differences for different markets.
Please don't reply with answers for the C43. They have different transmissions and are not entirely apples-to-apples in this respect.
Thanks in advance.
J-
Didn't sail mode launch with the 2017 E class? I don’t think the C450 has it.
09-23-2018, 04:19 PM
#4
MBWorld Fanatic!
Thread Starter
Interesting. MB mentions that the trans decouples from the engine during when decelerating (owners manual pp 160) but they don't specifically mention the "sail" mode.
"during deceleration, the engine is disconnected from the drive train. The vehicle uses kinetic energy and consumes less fuel (over-run mode)."
But for my vehicle this is not the case. I have HUD in both my cars so I'm always aware of current rpms when I'm driving. If the engine actually decoupled from the drivetrain, rpms should reduce to idle (about 500) but they do not ever do this in E mode or any mode.
When running my GLC43 in E mode the tach will temporarily go blank on the HUD when it's in sail mode and the little sailboat icon will appear on the dash display.
"during deceleration, the engine is disconnected from the drive train. The vehicle uses kinetic energy and consumes less fuel (over-run mode)."
But for my vehicle this is not the case. I have HUD in both my cars so I'm always aware of current rpms when I'm driving. If the engine actually decoupled from the drivetrain, rpms should reduce to idle (about 500) but they do not ever do this in E mode or any mode.
When running my GLC43 in E mode the tach will temporarily go blank on the HUD when it's in sail mode and the little sailboat icon will appear on the dash display.
09-23-2018, 04:25 PM
#5
Senior Member
Interesting. MB mentions that the trans decouples from the engine during when decelerating (owners manual pp 160) but they don't specifically mention the "sail" mode.
"during deceleration, the engine is disconnected from the drive train. The vehicle uses kinetic energy and consumes less fuel (over-run mode)."
But for my vehicle this is not the case. I have HUD in both my cars so I'm always aware of current rpms when I'm driving. If the engine actually decoupled from the drivetrain, rpms should reduce to idle (about 500) but they do not ever do this in E mode or any mode.
When running my GLC43 in E mode the tach will temporarily go blank on the HUD when it's in sail mode and the little sailboat icon will appear on the dash display.
"during deceleration, the engine is disconnected from the drive train. The vehicle uses kinetic energy and consumes less fuel (over-run mode)."
But for my vehicle this is not the case. I have HUD in both my cars so I'm always aware of current rpms when I'm driving. If the engine actually decoupled from the drivetrain, rpms should reduce to idle (about 500) but they do not ever do this in E mode or any mode.
When running my GLC43 in E mode the tach will temporarily go blank on the HUD when it's in sail mode and the little sailboat icon will appear on the dash display.
From MBUSA:
“The “Eco” program integrates an ECO start/stop function and a sailing function to reduce fuel consumption: when the driver releases the accelerator in a speed range between 37 – 99 mph, the clutch of the transmission is disengaged and the engine is decoupled from the powertrain. The electronics reduce the engine speed to idle level, and the driving resistance is reduced by the compression and frictional forces of the engine in overrun mode.”
https://media.mbusa.com/releases/the...lth_check=true
Last edited by HTXgearhead; 09-23-2018 at 04:29 PM.
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Mr. J (09-23-2018)
09-23-2018, 04:50 PM
#6
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Shanks’s Pony
On mine it only uses "coasting" / sail mode when the ECO symbol has been green for quite a while. I don't drive mine daily so the batteries tend to run down and it takes a while sometimes foe ECO mode to return.
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Mr. J (09-23-2018)
09-24-2018, 12:52 PM
#8
. MB mentions that the trans decouples from the engine during when decelerating (owners manual pp 160) but they don't specifically mention the "sail" mode.
"during deceleration, the engine is disconnected from the drive train. The vehicle uses kinetic energy and consumes less fuel (over-run mode).".
"during deceleration, the engine is disconnected from the drive train. The vehicle uses kinetic energy and consumes less fuel (over-run mode).".
My “I” setting is S+ but with engine in E - it’s less disconcerting when cruising on the highway for the steering and suspension to be the same (otherwise the steering is weird). So it might not be called sail-mode but I can see from my instantaneous fuel consumption when the decoupling commences.
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rorywquin (09-25-2018)
