battery not holding charge

[Zeusy]

Hi all as some of you know i recently purchased a used 2003 e320 av cdi. from private dealer.

Now, day after i got it, the right wing mirror indicator stopped working and was informed of this with a malfunction on the display...no biggie I thought £30 will get me replacment led indicator. Then I've been getting the due to battery convenience turn off blah blah on display.

This i thought may be due to cold weather or even sitting on dealers place for past number of weeks.

Then jyust yesterday, while I WAS driving, the command unit said something along the lines off "comand will shutdown within in the next 3minutes unless you turn the engine on"

I was driving so the engine was running!!!

So awoke yesterday to a completely flat battery.
I got friend to jump start me and I drove it for an hour none stop, with no heating or comand turned on hoping to charge up the battery.

When i got back I leave the car for an hour, before I tried ther ignition to start her up and see if it help the charge...well, it didn't...battery completely dead.

I looked at the battery in the boot and it looks really like new...real merc battery etc..

So, today and i spoke to merc repairs and they say, they might not be able to look at it until AFTER xmas...man...you think battery or what?

 

[LTD]

The battery will always look like new as it's very well protected from the elements.

I'd get a new one fitted. Peace of mind ...

 

[Dieselman]

This is a charging fault, so either alternator or controller.

 

[219]

It may be a battery that has reached the end of its life .

Equally , it may be a charging fault .

If you find yourself unable to start , and call out one of the breakdown organisations , they will usually diagnose the problem for you .

Edit , DM and I typing at the same time with the same thought - spooky !

 

[LTD]

It may be a battery that has reached the end of its life .

That was my thought ... probably an 9yo battery