W463A 2019 G63 inoperative messages keep popping up
I have just bought a second hand 2019 G63 (reg in August 2019) last week, with 7800 miles on clock, however everyday when I drive the car there is a chance of function inoperative messages popping up, they are 5 in total and are all the same every time.. thought it was ABS wheel speed sensor problem so today I took it to a garage to have a look by OBD diagnostic, but after clearing the faulty codes all seems to be fine in the second run, no any more faulty code whatsoever.. and the messages showed up again on my way back home.
Those malfunction messages are:
1. Active Lane Keeping Assist inoperative
2. Active Distance Assist inoperative
3. Active Brake Assist Functions limited see owners manual
4. Blind Spot Assist inoperative
5. ESP(icon) inoperative see owners manual
They actually deactivates my car‘s ESP, distronic and start/stop function, the buttons for these features also die.
May I ask how a car with no more than 8k miles and half year old can have this problem? It seems serious. Could anyone help me to diagnose where the problem is? Luckily the car has warrenty, but unless I point out where the problem is (which part of the car is wrong), the main dealer won‘t deal with it since in the past times I went to them with my former car they just told me to demonstrate the problem to their engineer otherwise they will keep saying they cannot find anything wrong! Regarding this G63’s faulty messages, they dissapear when I re-start the car so no-way can the dealer find the messages unless they keep driving it (free G63 drive around??)
I ask this because my parents had a similar issue as this and it was because the dealer ship had used a battery pack to start the car and it blew the ecu. This was in a gle. It had odd error messages and the heater stopped working. The dealership said it was common for this to happen as they often have to use battery packs.
Just a thought.
Last edited by haa; Feb 16, 2020 at 09:56 AM.
I ask this because my parents had a similar issue as this and it was because the dealer ship had used a battery pack to start the car and it blew the ecu. This was in a gle. It had odd error messages and the heater stopped working. The dealership said it was common for this to happen as they often have to use battery packs.
Just a thought.
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I have just bought a second hand 2019 G63 (reg in August 2019) last week, with 7800 miles on clock, however everyday when I drive the car there is a chance of function inoperative messages popping up, they are 5 in total and are all the same every time.. thought it was ABS wheel speed sensor problem so today I took it to a garage to have a look by OBD diagnostic, but after clearing the faulty codes all seems to be fine in the second run, no any more faulty code whatsoever.. and the messages showed up again on my way back home.
Those malfunction messages are:
1. Active Lane Keeping Assist inoperative
2. Active Distance Assist inoperative
3. Active Brake Assist Functions limited see owners manual
4. Blind Spot Assist inoperative
5. ESP(icon) inoperative see owners manual
They actually deactivates my car‘s ESP, distronic and start/stop function, the buttons for these features also die.
May I ask how a car with no more than 8k miles and half year old can have this problem? It seems serious. Could anyone help me to diagnose where the problem is? Luckily the car has warrenty, but unless I point out where the problem is (which part of the car is wrong), the main dealer won‘t deal with it since in the past times I went to them with my former car they just told me to demonstrate the problem to their engineer otherwise they will keep saying they cannot find anything wrong! Regarding this G63’s faulty messages, they dissapear when I re-start the car so no-way can the dealer find the messages unless they keep driving it (free G63 drive around??)
I experienced the same problem —-it was an easy fix —-have the dealer check for “brake light switch “ adjustment. Mine was fixed in a couple hourss...Cheers. It is a know problem
I have a G350 w463 (2019 September), with the exact same problem since the winter of 2019. I took it to my dealership’s service twice, they said this was software issue and updated it twice. (Funny enough the dealership had received five g wagons with the same issue)
The problem seemed to be fine for a while. But the messages returned shortly after. I managed to cope 2019 december to 2020 march with it since they cleared and all functions seemed to work as soon as I restarted the engine; however i kept getting the warnings once every one or two weeks.
Somehow I did not have a single warning message during the summer.
The messages have returned since this autumn (2020) and they are much more frequent. I had it six times today! They were all very short drives and the car was mostly cold, that might explain.
I have no technical knowledge of cars so I was a bit afraid to unscrew the brake pad box. I hope you guys can help me out. To be honest I even shared this forum link with the service manager of the dealership.











