2020 G550 shut off while driving today.
#27
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'25 EQG deposit, '21 718 Spyder & '20 HD Fatboy
#28
Senior Member
Thread Starter
As Bob said, no recalls and my dealer even said this in conversation.
#29
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Join Date: Nov 2017
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2017 G550 ,2018 S63 amg Coupe,2019 AMG G63,2021 AMG 63 (on order),2021 G550 (on order)
In my truck problem was differential lock malfunction specifically .This caused all my multiple warning lights to come on and vehicle stall.
Part 463-906-45-02 Actuator.
It only stalled once when moving slowly.But all the warnings appeared many times until fixed.all good now.
My speaker grills rattle too at certain exhaust frequencies too,drives me nuts.Rear drivers side door grill.
Mine is a Canadian 2019 G63.I got a letter in the mail about this recall after the fix was done.
Part 463-906-45-02 Actuator.
It only stalled once when moving slowly.But all the warnings appeared many times until fixed.all good now.
My speaker grills rattle too at certain exhaust frequencies too,drives me nuts.Rear drivers side door grill.
Mine is a Canadian 2019 G63.I got a letter in the mail about this recall after the fix was done.
#30
Newbie
We have a 2020 G550 and have had the same failure of the truck restarting at a red light after the auto start/stop feature activated. It’s happened randomly on 3 separate occasions. There are no error messages. It’s very scary as you have to cycle the power back on and off manually, which is scary when the light has turned green and traffic is starting to move. I just dropped it off at the dealer yesterday. Did anybody get a conclusive answer to this problem?
#31
Senior Member
Thread Starter
Mine has never done it again. Dealer found no codes or anything wrong when they scanned the ECU. No event records either.
One thing I didn’t mention before, was that when this happened I had just taken off from the stop light and was putting the G into Sports mode right when it shut down.
Makes me think that something about the car starting back up and switching to Sports Mode at the same time may have thrown something out of whack.
One thing I didn’t mention before, was that when this happened I had just taken off from the stop light and was putting the G into Sports mode right when it shut down.
Makes me think that something about the car starting back up and switching to Sports Mode at the same time may have thrown something out of whack.
#32
Junior Member
We have a 2020 G550 and have had the same failure of the truck restarting at a red light after the auto start/stop feature activated. It’s happened randomly on 3 separate occasions. There are no error messages. It’s very scary as you have to cycle the power back on and off manually, which is scary when the light has turned green and traffic is starting to move. I just dropped it off at the dealer yesterday. Did anybody get a conclusive answer to this problem?
#33
MBWorld Fanatic!
In my truck problem was differential lock malfunction specifically .This caused all my multiple warning lights to come on and vehicle stall.
Part 463-906-45-02 Actuator.
It only stalled once when moving slowly.But all the warnings appeared many times until fixed.all good now.
My speaker grills rattle too at certain exhaust frequencies too,drives me nuts.Rear drivers side door grill.
Mine is a Canadian 2019 G63.I got a letter in the mail about this recall after the fix was done.
Part 463-906-45-02 Actuator.
It only stalled once when moving slowly.But all the warnings appeared many times until fixed.all good now.
My speaker grills rattle too at certain exhaust frequencies too,drives me nuts.Rear drivers side door grill.
Mine is a Canadian 2019 G63.I got a letter in the mail about this recall after the fix was done.
#34
MBWorld Fanatic!
We have a 2020 G550 and have had the same failure of the truck restarting at a red light after the auto start/stop feature activated. It’s happened randomly on 3 separate occasions. There are no error messages. It’s very scary as you have to cycle the power back on and off manually, which is scary when the light has turned green and traffic is starting to move. I just dropped it off at the dealer yesterday. Did anybody get a conclusive answer to this problem?
#35
I’m having the same issue. 2020 g550 with 8k miles.
had this come up at 1-2k miles. Was brought in and they “adjusted” something related to brake pedal or sensor I believe..
my vehicle was also having a super weird issue on the high way, id get a total shut down with alerts saying brake assist off, blind spot off, abs off, etc. It was like my whole dashboard would light up.
im starting to get the start stop issue again every couple of stops.
is MB gonna replace the car or will they keep trying to fix this issue after telling me the first time that “they don’t know what else it can be?”
had this come up at 1-2k miles. Was brought in and they “adjusted” something related to brake pedal or sensor I believe..
my vehicle was also having a super weird issue on the high way, id get a total shut down with alerts saying brake assist off, blind spot off, abs off, etc. It was like my whole dashboard would light up.
im starting to get the start stop issue again every couple of stops.
is MB gonna replace the car or will they keep trying to fix this issue after telling me the first time that “they don’t know what else it can be?”
#36
WTF, this was a downright dangerous situation.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
#37
MBWorld Fanatic!
#38
WTF, this was a downright dangerous situation.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
#39
Member
Had same thing happen twice on my 19 g63. Its the diff sensors. They replaced one, the a second, then all of them. No problem since. Good luck.
#40
MBWorld Fanatic!
#41
Member
Will try to go find the work order but there was no charge for any of it. What is equally odd is that I have had 2 other friends with Rovers experiencing similar issues and all related to the differentials....
#42
MBWorld Fanatic!
I think one of the recall documents I read indicated that the differential actuators are provided by a supplier in Sweden. It wouldn't be unusual for the same supplier's actuator component to be used on many Euro vehicles with locking differentials.
#43
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Join Date: Apr 2020
Location: North Dakota
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2021 G550, BMW X5M, 2020 Toyota Supra LE
Happened to me today in my 21’ G550 (<5,000miles).
On Monday I received a “Fording Not Possible-Service Required” when I started my car. Turning the car off and on again cleared the warning light and I haven’t had anything since.
Today, after being stopped for a red light, as I am driving off I had a loss of power, a bunch of warning lights appeared, and the vehicle stalled.
Started it back up and all is running fine.
No recalls for this on my VIN, But I found this TSB.
On Monday I received a “Fording Not Possible-Service Required” when I started my car. Turning the car off and on again cleared the warning light and I haven’t had anything since.
Today, after being stopped for a red light, as I am driving off I had a loss of power, a bunch of warning lights appeared, and the vehicle stalled.
Started it back up and all is running fine.
No recalls for this on my VIN, But I found this TSB.
#45
This is happening to my 2021 G 550 - I have taken it in to the service center 3 times for this. First they changed braking pins? - didn't fix the problem. Next time they did something to the software I think - still stalling. Last week it stalled twice in one day. My 16 year old daughter was driving and lost sterling control. Thank God she was on a residential street and just hit a curb. It could have been so much worse. The car is back at the service center - no word yet. It has stalled at red lights, in drive throughs and even while driving on the high way. It is so dangerous!
WTF, this was a downright dangerous situation.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
#47
MBWorld Fanatic!
This is happening to my 2021 G 550 - I have taken it in to the service center 3 times for this. First they changed braking pins? - didn't fix the problem. Next time they did something to the software I think - still stalling. Last week it stalled twice in one day. My 16 year old daughter was driving and lost sterling control. Thank God she was on a residential street and just hit a curb. It could have been so much worse. The car is back at the service center - no word yet. It has stalled at red lights, in drive throughs and even while driving on the high way. It is so dangerous!
#48
Member
This is happening to my 2021 G 550 - I have taken it in to the service center 3 times for this. First they changed braking pins? - didn't fix the problem. Next time they did something to the software I think - still stalling. Last week it stalled twice in one day. My 16 year old daughter was driving and lost sterling control. Thank God she was on a residential street and just hit a curb. It could have been so much worse. The car is back at the service center - no word yet. It has stalled at red lights, in drive throughs and even while driving on the high way. It is so dangerous!
#49
Newbie
this happened to me on the 24th of December on my way to the airport. I had to go back home leave It there and just got back to take it to service. hopefully they can fix this issue. ive had fording issues previously, stalling, spark plugs replaced and now this.
#50
Similar happened to me
may I ask, how was this ever resolved? I had something similar happen. When I brought it to the dealership, I was told “ that’s what happens” — I told them you should NEVER be able to turn off a car that is in drive. Only park or neutral. I called Mercedes corporate and they agreed, the ignition button should not turn off the car while it is in drive. This has to be a known problem to Mercedes. It is now 2023.
WTF, this was a downright dangerous situation.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.
Honestly, only thing that saved my *** from possibly being rear ended was that I was at a controlled intersection and it was a Sunday morning with light traffic.
This morning, I fire up the G and head down to the end of my neighborhood, stop at the stop light and wait for the green to turn left onto a usually very busy 4 lane road with a speed limit of 45.
As I’m turning left, just as I start to straighten the wheel, the engine dies and I get red warning lights on the dash about the various drivers assistant technologies on the car such as blind spot detection, lane assist etc.
I lose engine power and steering assist, I think my brakes still worked but it happened so fast and I was only going about 15-20 mph so I stoped fairly quickly.
So here I am sitting in the middle of a 4 lane road stopped with no power. I quickly put the G into park and cycled the ignition and she fires right up. By this time I had vehicles approaching from behind so I got going.
Has anyone had anything like this happen to them??
This was downright dangerous and like I stated above, I was saved by being at a controlled intersection with lighter than usual traffic. If this had happened while merging onto a busy highway or turning onto a busy road at rush hour, I’m sure I would have been rear ended.
MB is going to hear about this tomorrow.