Hello fellow MB lovers,

Vehicle: 2006 ML500

Note: The car was driven 30 minutes to the dealership

I had my battery tested yesterday and the readout was as follows:

FAST CHARGE

Voltage: 12.360
Rated: 950 A(EN)
Capacity: 90 AH
Temperature: 28 degrees C

Vehicle Type: Car/Van
Location: In Vehicle
Battery Type: VRLA


The dealership told me that I needed a new battery, but I want a second opinion before dropping money on a new batteries.

Any help would be appreciated

 

That is the printed readout that the service agent at the dealership gave me, thats the only info that was on the paper and the only info I have.

 

I have been working on cars enough to know a lot of times even if a battery bench tests fine if it is older than a few years it is probably time for a replacement. Mercedes batteries should last longer, closer to 4-5 years because they are higher quality. Auto parts store batteries are cheaper quality and I usually only trust them 2-3 years.

How old is your battery? I would go ahead and replace both the auxiliary and the main battery for peace of mind if your current battery is OEM and older than 4-5 years or otherwise if you don't know how old it is.