Tag: auxiliary

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.

Exide AGM Ready AGM 12-12 Battery

Exide AGM 12-12 vs Varta Silver Dynamic AGM AUX14

The AUX battery can be found on the passenger side, under the air cabin filter

Location of the AUX battery in the CLS55 engine bay

Volvo S80 2.4T New Serpentine Belt Tensioner

Finally fitted a new serpentine belt tensioner, needed to wait for a Torx T60 bit to be able to take the tension of when you fit the serpentine belt.

Volvo S80 2.4T New Serpentine Belt Tensioner