Mercedes CLS55 AMG W219, New Exide AGM 12-12 Aux (Auxiliary) Battery
Decided to replace the Auxiliary battery in the CLS, as I could not find how old the current battery was and also the top was dented?
I replaced the Varta Silver Dynamic AUX14 battery with an Exide AMG 12-12 battery. Replacement is very easy and can be done by any home mechanic.