GLS Class (X167) Produced 2020 to present

Emergency braking - IMPRESSIVE

Old Feb 27, 2025 | 10:34 PM
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Emergency braking - IMPRESSIVE

I’m really impressed and love this car. We were driving at around 45 MPH in town when the car in front of us suddenly stopped, thinking another car would enter its lane. I missed that while being distracted by the CarPlay screen vchanging music for about a second. Fortunately, the emergency braking system activated and slammed the brakes, even though it was a heavy SUV - the GLS stopped quickly and safely, on time. This is probably the first time in a decade that I ever experienced the emergency braking taking over or doing something in any of my cars. Am just impressed by how quickly the car reacted, but also how quickly it stopped yet with all-season tires in 40 degF weather….

Last edited by S_W222; Feb 27, 2025 at 11:28 PM.
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Old Feb 27, 2025 | 10:51 PM
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GLE 580
That's great. I've had the feature activate a couple times while in reverse from impatient drivers zooming around while I'm backing out.
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Old Feb 28, 2025 | 08:55 AM
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Originally Posted by S_W222
I’m really impressed and love this car. We were driving at around 45 MPH in town when the car in front of us suddenly stopped, thinking another car would enter its lane. I missed that while being distracted by the CarPlay screen vchanging music for about a second. Fortunately, the emergency braking system activated and slammed the brakes, even though it was a heavy SUV - the GLS stopped quickly and safely, on time. This is probably the first time in a decade that I ever experienced the emergency braking taking over or doing something in any of my cars. Am just impressed by how quickly the car reacted, but also how quickly it stopped yet with all-season tires in 40 degF weather….
Glad you came out unscathed. Although there are usually some false positives from personal experience, it is great that when you need it, it is there. At least you can change the sensitivity to lower the amount of false positives.
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Old Feb 28, 2025 | 09:45 AM
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Originally Posted by W205C43PFL
Glad you came out unscathed. Although there are usually some false positives from personal experience, it is great that when you need it, it is there. At least you can change the sensitivity to lower the amount of false positives.
False positives from my experience are only when the drive assist cruise control is on... In this case, in fact, the adaptive cruise control wasn't even turned on, which is even more impressive.

I actually set the sensitivity to high/early. I really like it this way even if it causes false positives. For false positives, all I have to do if it happens is to just poke the accelerator paddle a tiny bit to keep it moving forward without over-braking.

During that event in my original post, I was actually more concerned and scared about any vehicle behind my as in a fraction of a second I was 100% confident that the car behind me won't be able to stop or react that fast no matter what (unless it's another german car lol). Luckily the car behind me was at least 5-6 cars distance behind us. When the car was braking, first thing I reacted to was looking at the rear mirrors waiting for a car behind me to crash into us..... Huge relief when I saw no cars right behind me.
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Old Feb 28, 2025 | 09:51 AM
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Originally Posted by S_W222
False positives from my experience are only when the drive assist cruise control is on... In this case, in fact, the adaptive cruise control wasn't even turned on, which is even more impressive.

I actually set the sensitivity to high/early. I really like it this way even if it causes false positives. For false positives, all I have to do if it happens is to just poke the accelerator paddle a tiny bit to keep it moving forward without over-braking.

During that event in my original post, I was actually more concerned and scared about any vehicle behind my as in a fraction of a second I was 100% confident that the car behind me won't be able to stop or react that fast no matter what (unless it's another german car lol). Luckily the car behind me was at least 5-6 cars distance behind us. When the car was braking, first thing I reacted to was looking at the rear mirrors waiting for a car behind me to crash into us..... Huge relief when I saw no cars right behind me.
Thanks! That should help.
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Old Feb 28, 2025 | 09:52 AM
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What was the distance between the GLS and vehicle in front before the braking occurred?
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Old Feb 28, 2025 | 10:26 AM
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Originally Posted by W205C43PFL
What was the distance between the GLS and vehicle in front before the braking occurred?
I don't know what the distance was exactly when it first occurred caused I was looking at the screen, but I was definitely very close already (like maybe closer than the legal distance I should normally leave). If I have to guess, I think I had only 1-car distance between me and the car, looking for a fraction of a second to change music album, and that car in front of me slammed the brake cause the lady was afraid by another car next to her (assuming it was going to merge into her car which was NOT the case). If I have to guess, I think my car responded immediately. I think the car was nervous already cause I was driving too close, and as soon as the car in front of me stopped (I think the car in front of my slammed the brakes too), my GLS also slammed within no time cause it literally happened the second I looked away. It happened so quickly. If there was no emergency car in my vehicle, within 1-2 seconds I think my car would have crashed into that car that slammed the brakes. Driving at ~45 MPH, with 1-car distance gap, I think that's just one second.

Frankly I never expected the car in front to slam the brake. There was no reason to even do so. She was just scared that someone from the middle lane was going to merge in but he was just waiting and slowly moving forward within the middle yellow marked lane until we pass him. I wish DMV offices would take it seriously before they issue driving licenses. A well trained driver would never stop that way for nothing. She could have just continued, or if worried, maybe turned slightly away just to make sure. Well, I am also to be blamed for leaving one 1-car distance and then look away on carplay without even adaptive cruise control.

Last edited by S_W222; Feb 28, 2025 at 10:28 AM.
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Old Feb 28, 2025 | 11:08 AM
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I have been impressed by this as well.
The rear ones are there in a lot of cars already, but MB ones are more precise for sure and less false positives.
I have had a couple of warnings on the front collision with crazy drivers swerving lanes.
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Old Feb 28, 2025 | 12:24 PM
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Originally Posted by S_W222
I don't know what the distance was exactly when it first occurred caused I was looking at the screen, but I was definitely very close already (like maybe closer than the legal distance I should normally leave). If I have to guess, I think I had only 1-car distance between me and the car, looking for a fraction of a second to change music album, and that car in front of me slammed the brake cause the lady was afraid by another car next to her (assuming it was going to merge into her car which was NOT the case). If I have to guess, I think my car responded immediately. I think the car was nervous already cause I was driving too close, and as soon as the car in front of me stopped (I think the car in front of my slammed the brakes too), my GLS also slammed within no time cause it literally happened the second I looked away. It happened so quickly. If there was no emergency car in my vehicle, within 1-2 seconds I think my car would have crashed into that car that slammed the brakes. Driving at ~45 MPH, with 1-car distance gap, I think that's just one second.

Frankly I never expected the car in front to slam the brake. There was no reason to even do so. She was just scared that someone from the middle lane was going to merge in but he was just waiting and slowly moving forward within the middle yellow marked lane until we pass him. I wish DMV offices would take it seriously before they issue driving licenses. A well trained driver would never stop that way for nothing. She could have just continued, or if worried, maybe turned slightly away just to make sure. Well, I am also to be blamed for leaving one 1-car distance and then look away on carplay without even adaptive cruise control.
I see, glad all worked out, should be part of MB's Pre-Safe system, preparing everything just in case the worse happens.
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Old Feb 28, 2025 | 12:35 PM
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I am scared to think of what happens if that driver did the same thing while it is raining and/or snowing : (
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Old Feb 28, 2025 | 04:15 PM
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Originally Posted by S_W222
I’m really impressed and love this car. We were driving at around 45 MPH in town when the car in front of us suddenly stopped, thinking another car would enter its lane. I missed that while being distracted by the CarPlay screen vchanging music for about a second. Fortunately, the emergency braking system activated and slammed the brakes, even though it was a heavy SUV - the GLS stopped quickly and safely, on time. This is probably the first time in a decade that I ever experienced the emergency braking taking over or doing something in any of my cars. Am just impressed by how quickly the car reacted, but also how quickly it stopped yet with all-season tires in 40 degF weather….
Did it bring you to a full stop, or did it slow to 10mph?
I can see a full stop if you had Distronic engaged, but I thought emergency braking disengaged at @ 10mph. Maybe an older version.
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Old Feb 28, 2025 | 04:27 PM
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Our GLS automatic systems have saved our tails more than two or three times. It has not been wrong yet. Great system for us. Now, if only the one in our Sprinter was not SO STUPID (it turned on three times yesterday driving home from a park).
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Old Feb 28, 2025 | 04:43 PM
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Originally Posted by OldManAndHisCar
Our GLS automatic systems have saved our tails more than two or three times. It has not been wrong yet. Great system for us. Now, if only the one in our Sprinter was not SO STUPID (it turned on three times yesterday driving home from a park).
That’s awesome!
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Old Feb 28, 2025 | 04:45 PM
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Originally Posted by W205C43PFL
I am scared to think of what happens if that driver did the same thing while it is raining and/or snowing : (
that’s true. At least I know our SUV would likely match or stop just as fast as the car in front of me, and likely majority of other cars on the road.
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Old Feb 28, 2025 | 07:25 PM
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Originally Posted by S_W222
that’s true. At least I know our SUV would likely match or stop just as fast as the car in front of me, and likely majority of other cars on the road.
That is confidence inspiring.
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Old Feb 28, 2025 | 10:50 PM
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Originally Posted by W205C43PFL
That is confidence inspiring.
well, when you drive a Benz I guess one deserves to feel that level of confidence, lol, as long as we continue to do our due diligence.
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Old Feb 28, 2025 | 11:00 PM
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Originally Posted by mikapen
Did it bring you to a full stop, or did it slow to 10mph?
I can see a full stop if you had Distronic engaged, but I thought emergency braking disengaged at @ 10mph. Maybe an older version.
It should make a full stop as seen in the euro test video:
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Old Mar 1, 2025 | 09:58 AM
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Originally Posted by S_W222
well, when you drive a Benz I guess one deserves to feel that level of confidence, lol, as long as we continue to do our due diligence.
For sure.
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Old Mar 1, 2025 | 12:31 PM
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Originally Posted by wildta
It should make a full stop as seen in the euro test video:
https://youtu.be/IzvV8z77NlE?si=G95o5ojF2ISv55Zs
Funny.
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Old Mar 1, 2025 | 05:30 PM
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Originally Posted by wildta
It should make a full stop as seen in the euro test video:
https://youtu.be/IzvV8z77NlE?si=G95o5ojF2ISv55Zs
That's sounds about right actually, thanks for posting. That's exactly how it went in fact.
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Old Mar 1, 2025 | 07:06 PM
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Originally Posted by mikapen
Funny.
The splash image of the video wasn't what I had meant. 🤣 But if you watch the first 37 seconds, you'll see the safety systems stopping the vehicle.
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Old Mar 1, 2025 | 07:16 PM
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I have only had this system engage once or twice, when traffic ahead decelerated unexpectedly. I have been on the brakes already in both cases. The brakes throw you into the shoulder strap, and the strap tightens at the same time. Uncomfortable when it happens, but comforting to know that it is available when needed.
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Old Mar 2, 2025 | 11:13 AM
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Originally Posted by wildta
The splash image of the video wasn't what I had meant. 🤣 But if you watch the first 37 seconds, you'll see the safety systems stopping the vehicle.
I saw that when I viewed it again. It was impressive.
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Old Mar 2, 2025 | 11:25 AM
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Old Mar 2, 2025 | 02:44 PM
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False positives with these systems are overstated. I have had cars with this technology since 2014, and I have had them activate as false positives twice, once in my 2014 Jeep Grand Cherokee and the second time was in my 2017 Lexus LS460L. When you consider thats probably 300,000 miles of driving thats pretty rare. This is great tech.
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