[xxnonamexx]

I am curious where our batteries are located in the C 300?

 

[Diesel Benz]

So you knew it would be different for gassers and diesels. For a C300 the battery would be at the engine bay, on the right, just in front of the firewall (hidden behind some other stuff). On a diesel it would be at the trunk, on the right.

 

[Bokx_C350]

Interactive Owner's Manual [In depth | Practical advice | Battery]

Check the battery section on this interactive manual.