Red battery light on display...anyone ever have this issue? battery? or alternator?
Newbie
Joined: Dec 2019
Posts: 4
Likes: 0
Mercedes-Benz GL 450
red battery light indicator comes on in the instrument display signalling an issue with the charging system of the car i guess.
when i turn the car off and back on,it disappears for a while...sometimes and hour, sometimes 2 hours or more. but lately been doing it within an hour to two of shutting and restarting the car. In all cases, car drives absolutely fine and normal.no loss of power anywhere whatsoever.
Anyone experience this? Am guessing its either the alternator or one of the batteries. Just want to see if anyone has had a similar issue.
Thanks
when i turn the car off and back on,it disappears for a while...sometimes and hour, sometimes 2 hours or more. but lately been doing it within an hour to two of shutting and restarting the car. In all cases, car drives absolutely fine and normal.no loss of power anywhere whatsoever.
Anyone experience this? Am guessing its either the alternator or one of the batteries. Just want to see if anyone has had a similar issue.
Thanks
Had same problem. Replaced alternator, $1800 part and labor. All back to normal
Super Member
Joined: Feb 2013
Posts: 862
Likes: 28
2010 e550 coupe
I think I am having this problem my car keeps dying while it is running then presenting me with this red battery light and no wording. I'm assuming this can be nothing other than the alternator causing this correct? Does mercedes throw any sort of code for an improperly working alternator? I found one stating communication with the starter or alternator has a malfunction.
Super Member
Joined: Feb 2013
Posts: 862
Likes: 28
2010 e550 coupe
I have been noticing my fan has been coming on and staying on for a very long time right before the car finally died and gave me the red battery error. Did you ever figure out the cause? I thought the fan was coming on more because of the hotter outside temp.
Newbie
Joined: May 2018
Posts: 6
Likes: 0
SL500 2003
Battery Warning
I have a similar issue, but the car starts without issue and the warning can be cleared. It often sits for long periods, and i recently drove it for almost 500 miles with the warning appearing about halfway on that trip. It almost seems erroneous but I'm sure something is bring it on, if just temporarily.
Any thoughts - starter battery, alternator, VR?
Any thoughts - starter battery, alternator, VR?
Senior Member
Joined: May 2019
Posts: 305
Likes: 114
2007 S550
I have a similar issue, but the car starts without issue and the warning can be cleared. It often sits for long periods, and i recently drove it for almost 500 miles with the warning appearing about halfway on that trip. It almost seems erroneous but I'm sure something is bring it on, if just temporarily.
Any thoughts - starter battery, alternator, VR?
Any thoughts - starter battery, alternator, VR?
Member
Joined: Sep 2022
Posts: 113
Likes: 9
2010 e550 coupe
I have a similar issue, but the car starts without issue and the warning can be cleared. It often sits for long periods, and i recently drove it for almost 500 miles with the warning appearing about halfway on that trip. It almost seems erroneous but I'm sure something is bring it on, if just temporarily.
Any thoughts - starter battery, alternator, VR?
Any thoughts - starter battery, alternator, VR?
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Member
Joined: Sep 2022
Posts: 113
Likes: 9
2010 e550 coupe
I would get the alternator checked even still it may not make a difference because mine was intermittent and sometimes would charge the battery. Eventually the battery started not receiving proper charge and I had thought it was the battery or some parasitic drain because I did not get any red batt light. It actually likely caused my esl to fail as well and when the alternator finally said bye the red light appeared.
Senior Member
Joined: May 2019
Posts: 305
Likes: 114
2007 S550
Your alternator is probably going to test fine because it's producing volts. You need to have it scanned by a star type system. Your dash light did throw a code and a star system will tell you what it was even if it's not happening at the time of testing.
Newbie
Joined: Jun 2019
Posts: 12
Likes: 1
S 600 W221
mine was the alternator. The new one was supposed to be fined but was actually faulty and would stop charging from time to time. We replaced it a second time and everything is fine since
I have a similar issue, but the car starts without issue and the warning can be cleared. It often sits for long periods, and i recently drove it for almost 500 miles with the warning appearing about halfway on that trip. It almost seems erroneous but I'm sure something is bring it on, if just temporarily.
Any thoughts - starter battery, alternator, VR?
Any thoughts - starter battery, alternator, VR?
