Battery protection convenience function temp unavailable
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04 e55
Battery protection convenience function temp unavailable
I get this message when I drive my car after about 15 minutes or so. It goes and comes periodically. If I stop the car and restart the car, the message goes away for a few minutes again. I replaced the altenator about 20k ago. What could it be
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2006 E55
Is that exactly what the message says? Or something different?
If the warning that comes on says, "Low Battery Convenience Functions Temporarily Unavailable", that typically means your main battery is weak and/or needs charge by your alternator. Typically, this occurs when the weather gets colder (I am no mechanic, don't know why that's the case).
On my previous 06, I had this warning come up during winter months, especially if the car say for more than a day without driving; it was never an issue during the summer/warmer months. I replaced my main battery with a lighter one. Luckily, I haven't had this issue on my current 06.
If the warning that comes on says, "Low Battery Convenience Functions Temporarily Unavailable", that typically means your main battery is weak and/or needs charge by your alternator. Typically, this occurs when the weather gets colder (I am no mechanic, don't know why that's the case).
On my previous 06, I had this warning come up during winter months, especially if the car say for more than a day without driving; it was never an issue during the summer/warmer months. I replaced my main battery with a lighter one. Luckily, I haven't had this issue on my current 06.
Last edited by ArmoE55; Nov 25, 2013 at 10:50 AM.
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Car free at the moment
I'm afraid the previous poster is mistaken. The convenience functions unavailable message means the voltage of the main battery in the trunk is low. The car is shutting down power hungry accessories (heated seats, heater blower fan) to focus on charging the battery.
I would be concerned if it comes and goes while driving. If the battery is a bit low from the car sitting all week, I would expect it to come on soon after start, and the go away and stay off.
So, was that alternator new, used, or rebuilt? How old is the main battery in the trunk?
I would be concerned if it comes and goes while driving. If the battery is a bit low from the car sitting all week, I would expect it to come on soon after start, and the go away and stay off.
So, was that alternator new, used, or rebuilt? How old is the main battery in the trunk?
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From: Racine, WI
2003 E55 AMG
i'm getting this as well in the cold winter time. It's only in the morning upon first startup goes away in about 5-10 mintues of the car running, and does not come back till the next morning. Checked voltage and I'm seeing 14V when running, it does however drop to 13.9 with one seat heater running and 13.8 with both running. Is this normal, or could it point to a voltage regulator????
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From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
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07 E63 + 07 CLK63CAB
Cold weather starting, the battery itself is strained and takes longer to actually recharge to top charge in comparison to warm weather operation. Now add increased load as with the seat heaters and cold weather as well as short drives the battery may only be 75% charged at the best. It is normal to see battery issues in the cold, In colder areas this is common knowledge.
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From: The Netherlands
2005 CLS55 AMG W219 C219
Could be BCM aka Battery Control Module, or voltage regulator, or F32 fusebox, or bad grounding
I created a video for removing the voltage regulator on W219 chassis, it should be applicable to W211 as well
I created a video for removing the voltage regulator on W219 chassis, it should be applicable to W211 as well
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Every chassis failure can be different.
The OP has proven this is not about replacing a working alternator or good front+rear batteries.
Something else is causing low chassis voltage...
Do we know what W211 low voltage measures?
The BCM may be guilty... I dont know how to test it?
The OP has proven this is not about replacing a working alternator or good front+rear batteries.
Something else is causing low chassis voltage...
Do we know what W211 low voltage measures?
The BCM may be guilty... I dont know how to test it?
