Spark Plug & Battery
Is replacing battery an DIY. Anybody has procedures. My wife doesn't drive much of our GL450 and it is on battery trickle charger lately. I know one of these days battery is going to give up. What should be battery voltage prior to start? Do I have to put the factory battery or I can put anything other brand? And how about reprogramming the all the service history and tranny software update. Will I need to do that again? Any help would be appreciated.
Our GL is 5 years and 6 month old and has ~64K miles on the clock.



