A couple of concerning items.
12-30-2022, 12:58 PM
#1
Junior Member
Thread Starter
A couple of concerning items.
I have had a couple of things happen that are a little concerning: Have only happened once each so far. Anyone else experienced this?
1. Late afternoon the car suddenly slammed on its brakes in the middle of the road to keep me from "crashing into" a shadow that was crossing the road.
2. Pushed the start button and the only thing on the dashboard was a message "Critical Malfunction". Had to turn off the car and open/close the door to get it to reset and start.
1. Late afternoon the car suddenly slammed on its brakes in the middle of the road to keep me from "crashing into" a shadow that was crossing the road.
2. Pushed the start button and the only thing on the dashboard was a message "Critical Malfunction". Had to turn off the car and open/close the door to get it to reset and start.
12-30-2022, 01:29 PM
#2
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Last month I had the brakes slam on in my driveway going 10 mph. Only happened once but scared the daylights out of me.
12-30-2022, 04:59 PM
#4
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2005 SL 500. 2015 S550. 2016 GLE400 2018 S560
Did that happen while backing up?? It’s happened to me 3 times backing out, but no problem driving into my garage. Nothing in my driveway that I could figure that would trigger it. I was going along at a decent speed, but normal, when it happened. Now I basically crawl out of my driveway and it hasn’t happened since.
12-30-2022, 05:18 PM
#5
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I was driving forward but there is a telephone pole at the 90 degree turn in the driveway where it happened…
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Radman991 (12-30-2022)
12-31-2022, 09:21 AM
#6
MBWorld Fanatic!
I had a similar experience at 35 mph while using adaptive cruise control that caused seat belt bruising. I reported it to NHTSA and received a response, but nothing actionable.
Complaint Number: 11192423
Vehicle Identification Number: WDDZF4JB6JA******
Your Vehicle's Make Model and Model Year: MERCEDES BENZ E300 2018
Note: Your VIN, make, model, and year are all protected under the Privacy Act.
What part of your car was affected? Speed Control
What happened?
The vehicle was in motion traveling at 35 mph and controlled by adaptive cruise control set at 35 mph. The time was 12:40 pm ET on 29 March 2019. Seemingly the car went into crash prevention mode by tightening the seat belt and executing a maximum force braking stop. The tires squealed. My chest was sore where the seat belt retracted with force. Approximate Location: Southbound on Landmark Dr. near Ashcroft Ct. Clearwater, FL 33761. Landmark Dr. is a residential two lane road running North-South with dual yellow painted center marking. Road is straight and flat for approximately .2 mile in each direction. There were no other vehicles, pedestrians or animals within sight in either direction. Weather was sunny and dry with the temperature near 82°F.
When did this happen? 03/29/2019
Was there a Crash? No
Was there a Fire? No
Was there an injury or fatality? No
How fast were you going? (in mph) 35
About how many miles were on your vehicle at the time of the incident? 7805
Vehicle Identification Number: WDDZF4JB6JA******
Your Vehicle's Make Model and Model Year: MERCEDES BENZ E300 2018
Note: Your VIN, make, model, and year are all protected under the Privacy Act.
What part of your car was affected? Speed Control
What happened?
The vehicle was in motion traveling at 35 mph and controlled by adaptive cruise control set at 35 mph. The time was 12:40 pm ET on 29 March 2019. Seemingly the car went into crash prevention mode by tightening the seat belt and executing a maximum force braking stop. The tires squealed. My chest was sore where the seat belt retracted with force. Approximate Location: Southbound on Landmark Dr. near Ashcroft Ct. Clearwater, FL 33761. Landmark Dr. is a residential two lane road running North-South with dual yellow painted center marking. Road is straight and flat for approximately .2 mile in each direction. There were no other vehicles, pedestrians or animals within sight in either direction. Weather was sunny and dry with the temperature near 82°F.
When did this happen? 03/29/2019
Was there a Crash? No
Was there a Fire? No
Was there an injury or fatality? No
How fast were you going? (in mph) 35
About how many miles were on your vehicle at the time of the incident? 7805
12-31-2022, 12:43 PM
#7
Junior Member
I have had mine slam on the brakes for no reason when the car in front of me is making a turn. The speed was so slow there was no possibility of me hitting them before they completed their turn. I guess this is why fully autonomous cars are many years away. No computer chip in the car can store every conceivable possibility. They will need to apply high level AI to make it work.
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01-01-2023, 01:05 PM
#8
I believe this feature can be turned off if it gets too annoying. I decided to keep it on as the instances when it kicked in seemed somewhat reasonable although not necessarily super useful.
01-02-2023, 09:56 PM
#9
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2005 SL 500. 2015 S550. 2016 GLE400 2018 S560
I had my brakes slam on again as I was backing out of my driveway today. Rear cross traffic alert was the message. This is probably the fourth time it’s happened and it seems to trigger in the same spot each time. There is nothing in the path of my driveway that I can imagine that is triggering the car. On the drivers side it’s my front lawn. On the passenger side there is a row of small trees about 15 feet away separating my property from my neighbors. It’s kind of spooky. Now every time I back up I’m gonna be worried it will slam on. When I back up at a creep it never happens. When I back up at a normal speed it slams the car stopped. I had a cup of coffee in the cup holder and the car jolted so much half the coffee spilled. Took me 10 minutes to clean up the mess. Any thoughts on what could be triggering this response. Is there a setting to decrease sensitivity of the rear cross traffic alert?
01-02-2023, 10:07 PM
#10
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23 EQS 580 SUV, 19 X7 (sold), 17/14 GLS550 (sold) 13 GL550 (sold)
I had my brakes slam on again as I was backing out of my driveway today. Rear cross traffic alert was the message. This is probably the fourth time it’s happened and it seems to trigger in the same spot each time. There is nothing in the path of my driveway that I can imagine that is triggering the car. On the drivers side it’s my front lawn. On the passenger side there is a row of small trees about 15 feet away separating my property from my neighbors. It’s kind of spooky. Now every time I back up I’m gonna be worried it will slam on. When I back up at a creep it never happens. When I back up at a normal speed it slams the car stopped. I had a cup of coffee in the cup holder and the car jolted so much half the coffee spilled. Took me 10 minutes to clean up the mess. Any thoughts on what could be triggering this response. Is there a setting to decrease sensitivity of the rear cross traffic alert?
01-02-2023, 11:23 PM
#12
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2021 S450 4Matic
Active Brake Assist was triggered a few times for my W223 in the first couple months after I got it from the dealership, without real danger.
I went into the Setting and adjusted its default value from 'Medium' to 'Late'. This does the trick and ABA did not happen for over 1 year now.
I bet the EQS has this adjustment available too (the choices are 'Early', 'Medium', 'Late' and 'Off').
I went into the Setting and adjusted its default value from 'Medium' to 'Late'. This does the trick and ABA did not happen for over 1 year now.
I bet the EQS has this adjustment available too (the choices are 'Early', 'Medium', 'Late' and 'Off').
