Need to know Secondary battery location
03-18-2018, 07:25 AM
#1
Need to know Secondary battery location
Is there a secondary battery in W215 2003 CL600? If yes then can someone please pinpoint the exact location. I am having this red low battery warning light even when the main battery is new and alternator is charging. I am wondering that it could be the secondary aux battery (if there is one in this car). Will highly appreciate the quick response.
Best Wishes to all MB community
Best Wishes to all MB community
03-18-2018, 08:09 AM
#2
Is there a secondary battery in W215 2003 CL600? If yes then can someone please pinpoint the exact location. I am having this red low battery warning light even when the main battery is new and alternator is charging. I am wondering that it could be the secondary aux battery (if there is one in this car). Will highly appreciate the quick response.
Best Wishes to all MB community
Best Wishes to all MB community
11-14-2021, 02:47 PM
#3
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2011 C63 AMG
I'm not sure. When I disconnect the main battery while the car is locked, the alarm goes on. There must be something powering it. However, I have not found aux battery in any of the usual places (under the hood on passengers side, or below the cabin air filter).
11-19-2021, 11:57 AM
#6
Super Member
The alarm has it's own battery.
