New battery need to be coded to car?

[350cls]

As title, does a new battery like for like need to be coded to a car or is it just a case of connect up terminals and away you go.

Is it particular car related?

Thanks

 

[whitenemesis]

No coding required..

You may need to resync the windows/sunroof though, detailed in the owner's handbook

 

[mersum1es]

As above, not even possible in MB. Yes, its car related, but some VAG origin car...

 

[alabbasi]

The only coding that I'm aware of is if you decide to use an AGM vs Flooded cell battery. As they have different charging characteristics, you should use a good scan tool to let the computer responsible for the charging system if you're using one vs the other.

 

[350cls]

I think I will purchase a new battery for w212 AGM battery at the weekend.

The car isn't getting a great amount of use over this period. I'm thinking a decent trickle charger maybe a better option to try at first.

 

[C220DLondon]

This is one of the reasons I'm quite pleased to have a Mercedes now rather than an Audi. The petty pointless recoding to fit a battery was one of the many annoyances I found with Audi. It's a battery. The onboard computer should be able to work out that is changed without needing to be coded.

On the trickle charger front, I can sort of recommend the ctek chargers. I've had one for a few years and it does a super job of reconditioning and charging. The only irritation I have is that the button that changes the mode seems to stop working after five years - all too common. I think it must corrode. Fortunately pressing it like a million times seems to eventually work. Other than that robust and very good. I'd definitely try one before a new battery.

 

[350cls]

This is one of the reasons I'm quite pleased to have a Mercedes now rather than an Audi. The petty pointless recoding to fit a battery was one of the many annoyances I found with Audi. It's a battery. The onboard computer should be able to work out that is changed without needing to be coded.

On the trickle charger front, I can sort of recommend the ctek chargers. I've had one for a few years and it does a super job of reconditioning and charging. The only irritation I have is that the button that changes the mode seems to stop working after five years - all too common. I think it must corrode. Fortunately pressing it like a million times seems to eventually work. Other than that robust and very good. I'd definitely try one before a new battery.

Thank you, much appreciate the info. I think I will go for one of these. I will order one at the weekend.

 

[John]

I think I will purchase a new battery for w212 AGM battery at the weekend.

The car isn't getting a great amount of use over this period. I'm thinking a decent trickle charger maybe a better option to try at first.

If the battery isn't very old and is generally OK, I would start with charging.

You can get a charger which can do proper charging and trickle charging.

The battery can then be charged up to the maximum possible and the trickle will maintain it.

 

[350cls]

If the battery isn't very old and is generally OK, I would start with charging.

You can get a charger which can do proper charging and trickle charging.

The battery can then be charged up to the maximum possible and the trickle will maintain it.

Thank you, the info is appreciated.

I have a smart charger, I think I need to put my multimeter on the battery and see what readings I'm getting under load and not. That might give me a better idea to what I will do. I'm not entirely sure how old the battery is.

 

[John]

Thank you, the info is appreciated.

I have a smart charger, I think I need to put my multimeter on the battery and see what readings I'm getting under load and not. That might give me a better idea to what I will do. I'm not entirely sure how old the battery is.

Usually a date code stamped on the terminal or on a sticker on the battery itself.

 

[normanh]

No coding required, just did mine plug and play but shop around for one mercedes use Varta i went to europarts bought the same battery around £40/50 cheaper

 

[mersum1es]

The only coding that I'm aware of is if you decide to use an AGM vs Flooded cell battery. As they have different charging characteristics, you should use a good scan tool to let the computer responsible for the charging system if you're using one vs the other.

Nope, I have not found even that coding any of my cars.

 

[Deadly Dave]

With the Audi you have to tell the brain that you are fitting a new battery as it will charge it differently to the worn out one. I don't know if the same applies to any Mercs.

 

[ioweddie]

Get a CETEK charger/conditioner

 

[Ted]

The reason for coding a battery to a car is to let the smart charging system know what the battery characteristics are and to adjust accordingly.
Say for example you put a larger capacity battery on, without coding it, the vehicle will not take this into account without coding, and the benefits and extra cost will be lost.
As has been said, replacing like for like will not need to be coded in.

 

[M666LFF]

Have a look at the AA charger and Maintianer I have just bought one itbhas some pretty good reviews
Argos 760 4351 £30 or £38 on Amazon

 

[Chrisso]

As title, does a new battery like for like need to be coded to a car or is it just a case of connect up terminals and away you go.

Is it particular car related?

Thanks

This afternoon I changed the battery on my 2005 W211 E320 V6 diesel. Took out the original 15 year old battery!!
Anyway, swapped flooded for agm, just had to reprogramme the windows. Easy to do.

I actually bought a lead that plugs into the obd and you connect a power supply to it, and it keeps all the cars functions while the battery is disconnected.
Did all that, but forgot to switch the power supply on! 'kin idiot or what.

 

[Larkone]

BMW batteries need coding - it was then I realised that BMW stands for Bu**er My Wallet