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It's there because a lot of people have never driven a manual transmission and are really caught off-guard when they lift their foot off the brake and the car starts to roll back. Again, I have the SUV, which free-rolls very easily. It's a feature that on some streets in SF, I had wished my manual transmission ICE had available. Fact is, though, it I have Hold Assist on my shortcuts screen because: 1) it should be disengaged if going through an automatic car wash, or similar situation; 2) having it activated makes parallel parking much more of a jerky pain. For the SUV, at least, I think parallel parking the etron on a hill is about the most difficult maneuver you have to deal with. Much trickier than in an ICE, either automatic or manual transmission.
OK. That makes sense … if you are on a hill. It still doesn’t explain why someone needs this on at a stop sign or traffic light.

On my Teslas, I just kept “creep mode” on which accomplished what you are describing without having to lock the brake system. It programmed the car to behave like an ICE car that was using engine torque to move forward if you let off the brake. I was always surprised when folks said they turned that off.

That being said, your earlier post said that the GT had the always on … that its transmission always had some type of “pull” in place.

So the question remains, if the GT doesn’t keep a completely neutral stance, and always behaves like an ICE manual transmission … then why does someone need this feature activated. You certainly don’t need it for stop signs/traffic lights and if the transmission on the GT always has some ”pull” then even when parallel parkin on a hill, you should be fine.

BTW: for some reason, I keep thinking about Bill Colby’s old schtik about driving in San Francisco in his Volkswagon Bug and having someone put a fake stop sign at the top of the hill, then watching with binoculars and saying “look Martha we got another one”. And his whole punchline of dying while drifting backwards into the Bay in his VW Bug because he couldn’t shift fast enough to get started from the stop sign.

Oh well. Yeah, I’m old.
 

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OK. That makes sense … if you are on a hill. It still doesn’t explain why someone needs this on at a stop sign or traffic light.

On my Teslas, I just kept “creep mode” on which accomplished what you are describing without having to lock the brake system. It programmed the car to behave like an ICE car that was using engine torque to move forward if you let off the brake. I was always surprised when folks said they turned that off.

That being said, your earlier post said that the GT had the always on … that its transmission always had some type of “pull” in place.

So the question remains, if the GT doesn’t keep a completely neutral stance, and always behaves like an ICE manual transmission … then why does someone need this feature activated. You certainly don’t need it for stop signs/traffic lights and if the transmission on the GT always has some ”pull” then even when parallel parkin on a hill, you should be fine.

BTW: for some reason, I keep thinking about Bill Colby’s old schtik about driving in San Francisco in his Volkswagon Bug and having someone put a fake stop sign at the top of the hill, then watching with binoculars and saying “look Martha we got another one”. And his whole punchline of dying while drifting backwards into the Bay in his VW Bug because he couldn’t shift fast enough to get started from the stop sign.

Oh well. Yeah, I’m old.
Of course, you are correct that the Hold Assist is not necessary when on fairly level terrain. But, the default position for many is to just leave it on all the time, because you never know when you might be stopped for a period of time on a hill.
I don't know if the GT is the same, but the SUV has a second type of hold assist, called "Hill Hold Assist" that cannot be turned on and off like the "Hold Assist". "Hill Hold Assist" always engages when you fully engage the brake pedal. When you lift off the brake pedal the car holds itself in position for a few seconds, giving you time to transfer your foot to the accelerator and depress, before it releases automatically. The unsolved issue for drivers is that, as many of us might do, as you approach the top of a hill, you might decelerate enough so that gravity brings you to a stop. In that case, neither HA or HHA will engage, and--surprise!--you start to roll back. Again, no problem for someone accustomed to a manual transmission. The e-tron is a curious mix of ICE-like automatic and manual behavior. It is its own beast.
 

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Of course, you are correct that the Hold Assist is not necessary when on fairly level terrain. But, the default position for many is to just leave it on all the time, because you never know then you might be stopped for a period of time on a hill.
I don't know if the GT is the same, but the SUV has a second type of hold assist, called "Hill Hold Assist" that cannot be turned on and off like the "Hold Assist". "Hill Hold Assist" always engages when you fully engage the brake pedal. When you lift off the brake pedal the car holds itself in position for a few seconds, giving you time to transfer your foot to the accelerator and depress, before it releases automatically. The unsolved issue for drivers is that, as many of us might do, as you approach the top of a hill, you might decelerate enough so that gravity brings you to a stop. In that case, neither HA or HHA will engage, and--surprise!--you start to roll back. Again, no problem for someone accustomed to a manual transmission. The e-tron is a curious mix of ICE-like automatic and manual behavior. It is its own beast.
Sounds like it. As always, I am grateful for your thoughtful response. I always enjoy reading your posts and seem to take away some new knowledge each time. Hope the rest of your week is awesome!
 

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The first car I had the brake hold feature on was my 2014 Mercedes E350 wagon (W212). You just pump the brake a little harder after a stop and you can let go of it until you're ready to roll off the stop. I absolutely love this feature and used it daily all the time. The way it was implemented is beautifully intuitive and gives your foot a rest at the stop light.

My next car, a 6-speed Golf R has auto hold which engages all the time when the car stops. I like it but it makes it hard (see. impossible) to start without applying throttle. When I was trying to teach my son on it I couldn't understand why he kept stalling the car. He never gave enough gas to disengage the auto hold. Fortunately it can be turned off for training purposes, otherwise the system works as advertised and it is a must with manuals without mechanical e-brake.

My wife's 2020 A6 Allroad does not have auto hold, not in any shape or form and I miss it immensely. The only way you can make the car stop and hold at a stop light is via the adaptive cruise if it brings the car to a complete stop it will hold it until you hit the accelerator. Nowhere near as useful as the Mercedes implementation which I found the best one, bar none.

Then the e-tron GT came along it has the exact same implementation as my trusty ewagon. I love it! I love that we don't have recuperation on the accelerator unless I want it on downhill slopes or while modulating in town and I love that we have creep from stop along with brake hold. So I've been using the exact same brake hold that is on the e-tron for almost a decade over 200k miles (my dad's S-class has the exact same setup from 2012) and I'm so glad this car has it.

The only thing my 8+ year old Mercedes still does better is it does not need me to put it in park assist mode to search for parking spots, it just does it automatically. I don't know how Mercedes figured that out a decade ago and Audi still makes me push a button.
 

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Sounds like it. As always, I am grateful for your thoughtful response. I always enjoy reading your posts and seem to take away some new knowledge each time. Hope the rest of your week is awesome!
Thanks! I find trying to answer these questions is a great way to sort things out in my own mind. As I said, the e tron is its own beast.
 
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