Battery recommendations
Easy replacement, 10 min job, no need for any special tools or knowledge.
See attached Data Sheet where they recommend the 95 amp for the diesel & 70 amp for the petrol.
I will be buying the lighter ( by 6 Kgs) petrol 70 amp when I need to.It is now 8 years old so I can recommend them.
70 amp works well in my mild weather conditions.
For the first timers, make sure the three tabs on the bottom of the air box fit into the corresponding slots. There is a video on youtube on how to replace the battery.
I also find it interesting that because the battery is covered by the air box, Mercedes has red plastic cover inches away that exposes a terminal for jump starting if needed. The ground is also nearby. It is a small post sticking out not too far away that does not seem to have a purpose.
Last edited by stephenc88; Dec 15, 2015 at 06:08 PM.

My battery is approaching its end of life I think. If I buy a non-MB battery, what should I do with the ventilation hose? Just let it hang? Thanks.
I also find it interesting that because the battery is covered by the air box, Mercedes has red plastic cover inches away that exposes a terminal for jump starting if needed. The ground is also nearby. It is a small post sticking out not too far away that does not seem to have a purpose.[/QUOTE]
I thought it could be used as the earth when jump starting or charging.
If yours has plenty of air around it under the bonnet (hood) I should not worry.
If your battery is a wet type ( not AGM) & for some reason the alternator AVR overcharges it or if it is over filled when topping up, the acid is liable to overflow. A drain is then advisable. I have had this happen in an earlier car & it strips off all the paint it comes in contact with.
The Best of Mercedes & AMG

My C300 is basically a weekend car, but I trickle charge it from time to time to keep it at least 11.7 thereabout. Just recently it drops suddenly. AI charge it to 12v or bit above, it won't hold it for even one day. Time to replace it after five years. It's VARTA, made in Germany.
Anyone knows the little square device connected to the negative terminal? Is it a fuse? It is made by Hyundai.

http://www.carid.com/exide/edge-grou...agml4-94r.html



Easy replacement, 10 min job, no need for any special tools or knowledge.
AGM is about $259 in store at Costco now!






