Battery Protection warning...
Thread Starter
Senior Member
Joined: Apr 2005
Posts: 293
Likes: 0
From: Austin, TX
'13 E550 W4
Battery Protection warning...
3 times today, I got a warning on my gauge cluster screen saying....
"Battery Protection: Convenience functions temporarily unavailable"
Then 10-15 minutes later each time, "convenience functions restored."
Please advise as to what is happening and if I need to take it in to the dealer..
Thanks team.
"Battery Protection: Convenience functions temporarily unavailable"
Then 10-15 minutes later each time, "convenience functions restored."
Please advise as to what is happening and if I need to take it in to the dealer..
Thanks team.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 4,260
Likes: 6
From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
Most likely one of your batteries is failing. The fact that it goes off after a drive is an indication that it has been accepting a charge but will not hold it. Most likely this is the small accessory battery under the hood as opposed to the big battery in your trunk. Would be best to have both of them checked and replace either that is bad or marginal.
Super Member
Joined: May 2006
Posts: 513
Likes: 2
From: San Diego, CA
2020 GLE350
Its most likely the other way around. I have replaced both, the warning as the OP stated was for the big battery in the trunk. The one that just shows a red battery with a Visit Workshop warning only was for the small one in the front. Both were months apart, not at the same time. Both went away with new batteries.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 4,260
Likes: 6
From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
Its most likely the other way around. I have replaced both, the warning as the OP stated was for the big battery in the trunk. The one that just shows a red battery with a Visit Workshop warning only was for the small one in the front. Both were months apart, not at the same time. Both went away with new batteries.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 3,254
Likes: 15
From: Louisiana
03 E500 and Corvette
Mine is an 03 and the original large starting bat in the trunk is still going. The aux bat under the a/c filter was replaced 3 months ago. I got the visit bat workshop for the aux bat. Took the car and had the trunk bat load tested and it passed all test so I replaced the aux bat. and have had no issues.
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