andrew242

Picked up this c6 in the middle of last month and I’ve had some electrical issues I wanted to start by replacing the battery but with the surge tank from the supercharger in the way the battery wont come out. Im not too experienced mechanically but how would I go about removing the surge tank to access the battery? Can I siphon out the liquid and just refill it or is the system going to fill with air? Any guidance would help thanks.

GS-2013

That might look more difficult than it really is. Remove the positive terminal and move/tape it out of the way. See if you can tilt the battery towards the firewall and lift it out. Battery lift straps would be nice to have. Make sure the new battery is the same size or slightly smaller to fit. Battery straps are your friend here.

MissileDoc

Remove the bolts from the tank mounting brackets, then there should be enough room to move the tank out of the way to get the battery out. It is tight but possible.