Auxiliary Battery Location? (2011 C300)
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 37
Likes: 4
From: Danbury, CT
2011 C300 Sport 4matic
Auxiliary Battery Location? (2011 C300)
I've done a tone of searching and I for the life of me cannot find the auxiliary battery location for this specific year. I've seen on newer models it is located in the trunk next to the spare tire. I'm new to the MB world (came over from Acura) so I never had to deal with a backup battery. Does anyone know if my year/model car even has one and if it does, where is it?
The car is a 2011 C300 Sport (4matic)
The car is a 2011 C300 Sport (4matic)
Super Member
Joined: Mar 2011
Posts: 803
Likes: 37
From: Bay Area, CA
2011 C300 Sport, P1, MM, Wood, Heated FS, DIY rearview camera.
I've done a tone of searching and I for the life of me cannot find the auxiliary battery location for this specific year. I've seen on newer models it is located in the trunk next to the spare tire. I'm new to the MB world (came over from Acura) so I never had to deal with a backup battery. Does anyone know if my year/model car even has one and if it does, where is it?
The car is a 2011 C300 Sport (4matic)
The car is a 2011 C300 Sport (4matic)
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
Likes: 379
From: San Jose area
'19 E63S sedan
I've done a tone of searching and I for the life of me cannot find the auxiliary battery location for this specific year. I've seen on newer models it is located in the trunk next to the spare tire. I'm new to the MB world (came over from Acura) so I never had to deal with a backup battery. Does anyone know if my year/model car even has one and if it does, where is it?
The car is a 2011 C300 Sport (4matic)
The car is a 2011 C300 Sport (4matic)
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 37
Likes: 4
From: Danbury, CT
2011 C300 Sport 4matic
Getting the red battery light on the dash randomly. We have tested both the battery and alternator but both appear to be good. From what I have read on the forums the aux battery was the next thing that seemed to give people that light but after further research, you’re right that I don’t have one.
