Flat battery help

ezra_

Hello,

I've an old c220 that has been lying up for a year. Naturally, the battery is flat.

The parents are looking to use the car, and I want to see if it starts and if there are any other issues with it.

I was planning on just removing the battery, charging it, and putting back it back in again? However, a quick google seems to suggest that even thinking about a battery change that wasn't done by a dealer leads to every piece of electrics in the car crisping.

So, anyone got any good advice for this?

Atlantic Dawn

I've regularly charged completely dead batteries myself and installed them back in the car. Issues would be radio lose preset stations and sometimes the electric windows will need the auto function reset. Don't see why the Merc would be any different?

JohnBoy26

ezra_ wrote: »

Hello,

I've an old c220 that has been lying up for a year. Naturally, the battery is flat.

The parents are looking to use the car, and I want to see if it starts and if there are any other issues with it.

I was planning on just removing the battery, charging it, and putting back it back in again? However, a quick google seems to suggest that even thinking about a battery change that wasn't done by a dealer leads to every piece of electrics in the car crisping.

So, anyone got any good advice for this?

Buy a new battery and fit it. If you can't fit it yourself get your mechanic to do it for you.

ezra_

JohnBoy26 wrote: »

Buy a new battery and fit it. If you can't fit it yourself get your mechanic to do it for you.

Battery is actually quite new, was bought about 18 months ago.

I've no issue at all in fitting it, it just seems that a lot people seem to end up blowing things in their cars when they try and change a totally flat battery.

JohnBoy26

ezra_ wrote: »

Battery is actually quite new, was bought about 18 months ago.

I've no issue at all in fitting it, it just seems that a lot people seem to end up blowing things in their cars when they try and change a totally flat battery.

If it's been left idle for a year the chances are it's fec**d

ezra_

JohnBoy26 wrote: »

If it's been left idle for a year the chances are it's fec**d

ah feck

rex-x

JohnBoy26 wrote: »

If it's been left idle for a year the chances are it's fec**d

There is a 100% chance that its fecked

biko

Battery might not be fecked but if your parents are going to start using the car I would spend the dosh to get a fresh battery so it won't let them down during the cold winter mornings.

ED E

ezra_ wrote: »

I've no issue at all in fitting it, it just seems that a lot people seem to end up blowing things in their cars when they try and change a totally flat battery.

Sounds like people attaching chargers to a battery thats still in circuit with the car.

dazza161989

I work in a Mercedes dealership and there is no problem with you removing the battery yourself! Just remember to remove positive first when removing battery and connecting negative first when putting battery back in. Also you will need to re enter your radio code.

ezra_

dazza161989 wrote: »

Also you will need to re enter your radio code.

Where would I find that?

dazza161989

ezra_ wrote: »

Where would I find that?

On a card in the owners handbook, if not bring it to your local dealership and they can recover the code.