2014 ML400 Electronic Problems
03-07-2021, 05:16 AM
#1
Newbie
Thread Starter
Join Date: Jan 2019
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
ML400 2014 W166
2014 ML400 Electronic Problems
Not sure what is going on here, but car has had no electronic problems until yesterday. I got all of these warning messages at some stage. Most disappeared within 5 or 10 seconds, others I had to stop and restart to reset.
-Remote Battery Flat ( it has a new battery and measures 3.1v)
- Pre safe functions disabled
- Distronic Inoperative
- Active lane keep assist disabled.
Seems strange I am getting so many error messages, that I suspect something else is going wrong. Main battery appears to be strong as it starts easily.
Any ideas ???
Digger
-Remote Battery Flat ( it has a new battery and measures 3.1v)
- Pre safe functions disabled
- Distronic Inoperative
- Active lane keep assist disabled.
Seems strange I am getting so many error messages, that I suspect something else is going wrong. Main battery appears to be strong as it starts easily.
Any ideas ???
Digger
03-07-2021, 09:13 AM
#2
Out Of Control!!
Join Date: Sep 2018
Location: unbegrenzt
Posts: 13,456
Received 3,983 Likes
on
3,130 Posts
2017 GLE350 4MATIC
How old is the main battery?
03-11-2021, 01:06 PM
#4
Out Of Control!!
Join Date: Sep 2018
Location: unbegrenzt
Posts: 13,456
Received 3,983 Likes
on
3,130 Posts
2017 GLE350 4MATIC
Replace the battery.
The following users liked this post:
mikapen (03-11-2021)
03-12-2021, 01:27 AM
#5
Newbie
Thread Starter
Join Date: Jan 2019
Posts: 7
Likes: 0
Received 0 Likes
on
0 Posts
ML400 2014 W166
So I replaced the a battery with a 850CCA AGM, as the battery was still the original - so it would have stopped working at some stage anyway.
Unfortunately, all of the error codes are still randomly appearing.
I plugged in my $10 OBD code reader, but it is useless - but it did show a OBD/ECU voltage of only 11.8v when engine is switched off. My multimeter measures 12.6v at the terminals under the hood - so I am now suspecting a voltage drop/drain somewhere.
Might need to go to mechanic, as I think is beyond my DIY abilities unfortunately.
Unfortunately, all of the error codes are still randomly appearing.
I plugged in my $10 OBD code reader, but it is useless - but it did show a OBD/ECU voltage of only 11.8v when engine is switched off. My multimeter measures 12.6v at the terminals under the hood - so I am now suspecting a voltage drop/drain somewhere.
Might need to go to mechanic, as I think is beyond my DIY abilities unfortunately.
