Starter Battery Critical




I see the handles open and retract at random because I am moving about near the car. Also, my home office is in the room directly above the garage where I leave my wallet and keys which is in range.
However, if door lock was previously open the handles will retract after certain time and remain unlocked.
Regarding you other point, that’s odd, or else they would pop out randomly when parked in public and people walking by it. I think it’s because your keys are in the room above the garage and triggering it when your moving about.
Hopefully they did weather testing on these handles, at least they are heated (hopefully)? Don't want it failing in the winter.
Not quite sure why they didn't just use the sensor in the handle to detect a hand or another object is there to prevent it from retracting in the first place.
After fully charged the starter battery I can drive maximum 1 to 1,5 week. And then receive notifications that battery must be charged. Also the auxiliary heating is disabled 😡. Car already went to dealer but “I am the only one with this complaint “ and they Have no idea how to fix this.
at 12.2 volts. Their is "some" parasitic loss from the cables but not almost a 1 volt. The AGM battery
should be at 12.8 at least. So I charged it up with my ctek and it was at 12.6 volts still low. And then
the next day dropped to 12.2 volts. Took it to the dealership and asked what voltage should it be.
Never got a good answer. They replaced the battery, my thinking is that is sat a long time at the port.
The car was built in 1/21 and I bought it in 8/21. I escalated the voltage question to MBUSA customer
and they really had no specific answer about what voltage it should be. So at this point we'll see.
I will keep measuring the starter battery voltage from the front. It's a PIA to remove the cover in the
back to get to the starter battery.
Has anyone had any experiences akin to this? Any words of wisdom?
Thanks.
The Best of Mercedes & AMG
Has anyone had any experiences akin to this? Any words of wisdom?
Thanks.
hi,
As i posted before, u can solve the problem by always locking the car. I had all the updates done to the vehicle, I also had the battery changed at the dealer and no luck. So I changed my habit and now I always lock the car, even inside the garage. If I occasionally forget to lock, I always get the low voltage massage and mail after about half and hour after leaving the car.
You'd think that the Exec management at MBZ might have engineers looking at these forums: The problems are frequent and provoke loyal owners (this is my 3rd S-Class) to question their loyalty. Whatever is provoking this failure mode, it should be fixed ASAP with the highest priority. The Engineering Team should be embarrassed by this.




Yes: lock you vehicle, put your key(s) into a Faraday case, shut off the auto stop-start, don't "glide", run vehicle in sport engine and transmission mode to keep the engine/ charging speed up, take trips longer than 30 minutes above idle, feather your braking so that the regenerative charging kicks in earlier and check the multitude of ground connections in the engine bay as some earlier production runs painted over the studs and counted on star washers to cut through the paint= bad grounds. These will help maintain the charging system in a vehicle that has a very high operating current draw on both batteries.
I apologize for being so ridiculous, but are we out of our minds for putting up with this crap? Reading how owners of $150K cars have to jump through hoops so the batteries don’t die? This is just NUTS! Everyone of us should call MBUSA TODAY and file a complaint. I cannot believe that so many well to do folks will futz with these workarounds. CALL MBUSA TODAY!
I apologize for being so ridiculous, but are we out of our minds for putting up with this crap? Reading how owners of $150K cars have to jump through hoops so the batteries don’t die? This is just NUTS! Everyone of us should call MBUSA TODAY and file a complaint. I cannot believe that so many well to do folks will futz with these workarounds. CALL MBUSA TODAY!
In all truth, it's a pain to have to keep the car locked all the time. Don't you ever accidentally leave something in your car; who wants to walk all the way across the house and back to retrieve and hide the fob so you can get whatever out? First world problems, I guess...
In all truth, it's a pain to have to keep the car locked all the time. Don't you ever accidentally leave something in your car; who wants to walk all the way across the house and back to retrieve and hide the fob so you can get whatever out? First world problems, I guess...
In all truth, it's a pain to have to keep the car locked all the time. Don't you ever accidentally leave something in your car; who wants to walk all the way across the house and back to retrieve and hide the fob so you can get whatever out? First world problems, I guess...
I know this is an issue for some S class owners but other than my ambient lighting staying on for at least 20 minutes or a bit more once I put my car in my garage unlocked I have never had this problem or message pop up about the charging being at a critical level...Strange but to me locking the car in my own garage seems ridiculous




I also fail to believe going back to the car for forgotten items is an onerous burden. I can't remember when exactly I last forgot something in the car; it happens, but not so often I weep over the difficulty of reaching for a fob, which like any person with a functional brain, I have situated on the way to the car.
The owners manual states explicitly that the car should be locked at all times when not in use and as can be seen here, not without reason. I bring it up because it might be argued that you shouldn't have to read the manual to operate the car and in general I subscribe to that concept. If basic functionality like leaving the car without risking a flat battery requires reading, one or more things weren't done right.
So what's wrong here? Right off I'd say the door handles themselves are a triumph of foo-foo over function. I gotta admit, it's cool, but it doesn't actually do anything to make it easier to enter the car compared to handles that don't pop out. Whatever a man thinks of them you have a car which now needs the doors locked to flawlessly perform it's party trick with the handles. This stacks on the other reason they want you to always lock it; battery issues. These being the case why not have walk away locking? The car locks itself after checking the interior for a fob. Some cars do it, some give you the option. IMO it should be SOP for this car. You're already told owners they must leave the car locked, why not lock it for them?
I'm not calling anyone out. It's a problem, and we shouldn't have it. I do think the complaints exceed the difficulty involved in overcoming them. I actually want my car to lock itself. There is no way that the occasional forgotten item requiring you to take action outweighs the number of times you need to take an action to lock the doors when away from home. IMO on a car that requires you lock it, there is no reason for it not to lock itself. Problem solved.





