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Discussion Starter · #1 · (Edited)
I was driving recently and saw this.
I gather that this is sailing mode.
No reference in the owners manual, so I started to look into it.
it’s a mode of the transmission where coasting is enabled.
Supposedly you have to be in C with the eco mode enabled and parkway driving.
For me, this is a rare situation because I take off the eco start stop before I get on the parkway.
This is supposed to save some gas, but with my foot, all I manage to do is 17.

26817
 

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You don’t have to have the ECO start/stop enabled for the sailing mode…

It’s kind of annoying IMO.. I wish I could easily code it out but that’s probably some master level stuff if it can be done.
 

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That is indeed sail mode. And if you live in an area of long downhills or gradual slow downs it can allow a significant increase in mpgs.

Pam's previous car was a hybrid. So we got used to the motor shutting off. So I don't stress over eco mode. So I never thought about if eco is required or not. But you make an interesting observation.
 

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I had a 2017 GLA and if you were in Eco mode and took your foot off the gas, the consumption/mpg page would say "Gliding Mode" and the D lit up in green. My 2021 GLA does the same thing, without any indication of gliding mode.
 

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yeah, my car is ALWAYS in gear, engine compression is in effect at all times always, minus pedal transitions between gas and brake. My glide mode is put it into 7th.
 

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Discussion Starter · #8 ·
I just tried it again, this time at neighborhood speeds, like 30 MPH. Turns on.
The minute i press the start-stop button, to turn off the green light (as the car drives), the sailing mode goes away.
You HAVE to leave the eco-start-stop on for this to work. And it will work at low speeds too.
 

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Discussion Starter · #9 ·
With this car, with the M133, that has the 8.6:1 compression ratio, the downshifts with bleeps are entertaining, but with little effect.
 

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Yes, this! Ha ha ha! Get that old iron rolling and it wants to keep rolling for sure. Or did they actually slide into a "coasting" mode?

I'm pretty sure I've had it work with the ECO mode disabled, but can't be certain. I just know I typically disable it on my way home so it doesn't shut off when I pull into the garage, just to have to start again to shut it off. And I had it "Sail" on the way home yesterday.

Standard on the 70's Coup DeVille, any Lincoln, most Buicks
 
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