Folks, I've changed the battery in my 2010 Yeti S but when I've come to change the coding I've noticed the following;

 

1) There is no 61 Battery Reg module

2) In 19 Can Gateway, 0A extended adaptation there are no group options available

 

Where do I change the coding, do I need to code the battery in a 2010 car?

Edited 12 October, 20214 yr by b1ackb1rd

Does it have start/stop, or anything on the battery negative post other than a simple clamp? I imagine no to both?

4 hours ago, Wino said:

Does it have start/stop, or anything on the battery negative post other than a simple clamp? I imagine no to both?

 

No start/stop, and nothing on the negative terminal.

Nothing to code then. 

(disclaimer: to the best of my knowledge)

Edited 12 October, 20214 yr by Wino

Seconded...

 

If you haven't got stop/start (or battery monitor) then no need to code the new battery

18 hours ago, b1ackb1rd said:

Folks, I've changed the battery in my 2010 Yeti S but when I've come to change the coding I've noticed the following;

 

1) There is no 61 Battery Reg module

2) In 19 Can Gateway, 0A extended adaptation there are no group options available

 

Where do I change the coding, do I need to code the battery in a 2010 car?

If there is no 61 in the scan and no slave battery management module shown below 19 in the scan then there is no battery management and hence nothing to code.

 

A very good clue is whether stop/start is fitted - if not then it's 99.9% certain there is no battery management.

Edited 13 October, 20214 yr by PetrolDave

Tayna advised me that no batteries they sell are marked with a BEM code.
It was said the main reason for this is so the Skoda service department can check whether an original battery is fitted.

I have a 2015 petrol Yeti with Stop/Start and lots of other wired and wonderful gadgets. I had to change the battery a few months ago and got my knickers in a twist over the "coding" issue. One local battery supplier even said they couldn't do it.

 

I ended up taking it to our local indy dealer who simply disconnected the battery, removed it and then installed a new one, back up and running in about 5 mins, no re-programming / re coding or anything else and it's been fine since?.....even the Stop / Start started working again. (It had been "dormant" since I got the car at 2 years old.....I now have to keep remembering to turn the bl@@dy thing off)....

My 2016 Yeti with Stop/Start I had to code when I swapped the battery last November. I changed the battery type from EFB to AGM too. All entered into controller 61 Battery Regulation. The serial number I just set to the date I installed it 0029112020.

16 hours ago, Stubod said:

no re-programming / re coding or anything else and it's been fine since?..

Isn't the problem that the Intelligent Battery Sub-System will now be charging the battery at the rate appropriate to an "old" (deteriorated) battery rather than the "new " one which you have fitted, which could reduce the life of your replacement battery. Also, it may not be reporting correctly back to the Stop/Start (and other electronic sub-systems) so they may not be operating optimally. So it may appear to be fine, but actually you could be storing up problems for yourself.

41 minutes ago, MX-5 said:

Isn't the problem that the Intelligent Battery Sub-System will now be charging the battery at the rate appropriate to an "old" (deteriorated) battery rather than the "new " one which you have fitted, which could reduce the life of your replacement battery

 

Sounds like the sort of rumour I'd want to put out there if I were working for VW-group or any other garage that has coding facilities.  Bet there's no basis to it.

5 minutes ago, Wino said:

Sounds like the sort of rumour I'd want to put out there if I were working for VW-group or any other garage that has coding facilities.  Bet there's no basis to it.

Have to disagree. If you have Stop/Start on your car, you'll see the electronics for monitoring the battery attached to the -ve terminal (along with a sticker warning you that chargers have to be attached to the chassis and not directly to the battery -ver terminal, where they would bypass the monitor).

 

Modern cars have very complex battery requirements (especially if they have Stop/Start, keyless entry, always-on infotainment, etc), and the charging requirements for EFB and AGM batteries are different to classic Lead-Acid batteries.

 

Hence the need to code in new batteries to ensure that both the charging regime and the information provided by the monitoring sub-system are accurate.

I heard this too and that at the very least you need to change the serial number when replacing the battery, it does not matter what to - just change it. That's why I used the date as I thought well that's a system that would change.   It would be nice to have this officially confirmed though as the reasons do make sense in the battery charging regulates as the battery ages but I have no idea if really true. After all how many devices have rechargeable batteries and this tell the device the battery has been changed is not a uniform requirement.

Interesting read HERE

 

..I did mention this to my local indy, (who specialises in Skoda's and Yeti's in particular), and he politely suggested it was all "cobblers"?

42 minutes ago, Stubod said:

he politely suggested it was all "cobblers"?

 

My feeling too. Take this quote for example, from @muddyjim's link

 

"Self-learning system.

If a battery is advanced in age, the vehicle system records the „defective battery“. If a new battery is installed without entering a BEM code, the vehicle will not recognise"

 

So they'd have you believe that the vehicle system is capable of detecting when a battery is defective, but then can't tell the difference when a non-defective, brand new one is fitted and used? 

Pull the other one, frankly. 
 

1 hour ago, Stubod said:

..I did mention this to my local indy, (who specialises in Skoda's and Yeti's in particular), and he politely suggested it was all "cobblers"?

Sadly many "old school" mechanics, who may be extremely good with mechanical systems, don't always have the knowledge, expertise or understanding of how complex modern electronic systems work. On the Yeti with Stop/Start, the Battery Monitoring Control Unit (J367) talks to the databus diagnostic interface (J533), and relays information including the current temperature, voltage and charging current. These can vary depending on the level of degradation of the battery, and coding in a new battery is a necessary step to ensure that the J367 is providing the correct information back to the J533 and onwards to other sub-systems.

 

I would suggest that you ask your indy (1) why he thinks that Škoda (and most other manufacturers) go to the expense and complexity of fitting such systems, and (2) whether he has the capability of coding in a new battery (I suspect that the answer is "no"). You might then want to look for a new indy who actually knows what he is talking about.

33 minutes ago, MX-5 said:

 On the Yeti with Stop/Start, the Battery Monitoring Control Unit (J367) talks to the databus diagnostic interface (J533), and relays information including the current temperature, voltage and charging current. These can vary depending on the level of degradation of the battery, and coding in a new battery is a necessary step to ensure that the J367 is providing the correct information back to the J533 and onwards to other sub-systems.

 

 

So this complex modern electronic system J367 cannot measure the ambient temperature, charging voltage & current correctly unless it has been told that a new battery has been fitted and what type.....................

 

Do you really believe that?

 

Edited 14 October, 20214 yr by J.R.

1 minute ago, J.R. said:

So this complex modern electronic system J367 cannot measure the ambient temperature, charging voltage & current correctly unless it has been told that a new battery has been fitted and what type.....................

That's not what I said. It needs to know the state of degradation (and the capacity and type) of the battery in order to contextualise those parameters.

It is exactly what you said and in simple words as well, unlike your denial.

 

coding in a new battery is a necessary step to ensure that the J367 is providing the correct information back to the J533 and onwards to other sub-system ("information having been defined as temperature, voltage and charging current)

 

Do you really believe that?

The parameters (temperature, voltage, charging current) have to be analysed in the context of the capacity and state of degradation of the battery.

 

It's not a matter of whether I "believe" it or not; it's a simple engineering fact.

..I'll admit "I know nothing", but doesn't the onboard fancy ECU / Computer doo dah not have the facility to analyse the state of the battery anyway?.....eg when I first got my Yeti the stop/start hardly ever worked, (it worked occasion, but only after a "long" drive when it would occasionally kick in. In hindsight the battery must have been ify, and never seemed to read more than 11.5 volts when I checked it with a multi meter. (Since confirmed by indy who advised that there was a known problem with a batch of batteries made by another manufacturer for Skoda and affected cars made around 2015.

Since the battery has been replaced the S/S has worked pretty much every time I stop the car, with the usual exception of cold mornings / heavy load. So I therefor assume the ECU must know that the new battery has better voltage?

The Škoda Stop/Start system monitors (I think) 31 different parameters on the vehicle when deciding whether to operate or not. State of Battery Charge is just one of those parameters, so your Stop/Start working might be related to your new battery, or it might be entirely co-incidental. But the Battery Monitoring unit will have no way of "magically" knowing that one day you have replaced your knackered old battery with a brand new one (and especially if you have replaced it with one of a different capacity or technology) - hence why you have to tell it by coding it.

 

It would be technically possible to put some technology in the battery which would communicate with the car (in the same way that some printer cartridges are chipped so that you can only use the originals) - but then people would complain that they can only use Škoda-branded batteries in their cars, and couldn't use a third-party one.

 

Have a look at the attached, which explains how Stop/Start works.

S0020028620-Nr__86__System_START-STOP_in_ŠKODA_cars.pdf

Edited 14 October, 20214 yr by MX-5
Typo

I will ask you a 3rd time MX5, perhaps I am not explaining well enough.

 

Do you believe that the supposed J367 module is not capable of measuring current, voltage and temperature correctly if a different battery to the one coded into the system is fitted and will thus give false information to the supposed J533 module?

 

That is all that I want to know, not to argue, not to tell you different, just to know if you believe what you stated.

1 minute ago, J.R. said:

I will ask you a 3rd time MX5, perhaps I am not explaining well enough.

 

Do you believe that the supposed J367 module is not capable of measuring current, voltage and temperature correctly if a different battery to the one coded into the system is fitted and will thus give false information to the supposed J533 module?

 

That is all that I want to know, not to argue, not to tell you different, just to know if you believe what you stated.

As I said before, it's not a case of "belief". It's a case of simple engineering facts. There's nothing "supposed" about the J367 or J533 modules - they are referred to within Škoda's engineering documentation. Are you doubting that they exist???

 

Yes, of course the module can measure the current/voltage/temperature - but it's what the car does with those values which matters. And the state of the battery (capacity, level of degradation, technology, etc) will determine that course of action (which might be whether to activate the Stop/Start system, or manage the rate at which the battery is charged). Hence why the car need to be told (by coding) when a new battery is fitted.

 

(Also, my user name is MX-5, not MX5, but I'll assume that's just a typo on your part).