Michael56

Hello AJW100, what other members had said about driving up the road normal speed turning left and right around corners is correct after new battery registration. This will clear any stop/start error messages/lights etc. The only warning message/light that probably will remain is for the tyre pressures, just press the car button on the Infotainment screen and look for the Tyre Pressure Monitoring system, it will ask you if the pressures are correct, just press the set button to clear the warning msg. Other similar Skoda's will have maybe more things fitted to the car more warning messages/lights that i don't have that may need to be reset by the driver through the Infotainment screen. Before a battery is disconected in the engine compartment it's a good idea to connect a back-up 12v battery somewhere to continue the supply in order to retain the window convenience one-touch open/close memories and whatever other convenience memory stuff is in the car. I used the cigar lighter socket that's in the boot which stays live when the engine is off to plug in a 12v battery. This is purely only to keep the car convenience system memories inplace whilst old battery is disconected and new battery fitted in and connected up again, then un-plug back-up battery. One can get a battery saver pack which has a plug that fits into the OBD socket under the dash, it does the same thing keeping the memories powered up. If no back-up battery is used the convenience system can get lost (windows/sunroof etc) not permanently just temporarily until driver resets it all again. When trying to reset the convenience one-touch opening/closing windows, one has to reset each window, sometimes the one-touch can fail to one or more windows. The windows will still go up/down but you got to keep your finger on the button, somehow the one-touch coding gets lost/corrupted/scrambled, where it goes i don't know. might need to be coded in again using a scanning/diagostic tool or some other way of putting it right again. Best thing i know is to use a back-up battery and not risk getting any memory problems. How to reset the one-touch windows can be found in other members posts elsewhere in this forum.

Forgot to mention in my post above i mostly drive with the stop/start switched off otherwise the battery ends up more flat, particulary in London stop/starting all the time. The website below gives some reading into this subject. https://stevesorensenmechanical.com.au/blog/battery-registration-and-programing/

Hello Zenith 707, last year (January 2020) i purchased an Octavia mk3 1.4 tsi combi (2014) and soon afterwards the stop/start system stopped working with a red warning light and a message on screen staying on etc. I had a look at the battery (an original Moll EFB 59Ah) with a 2014 manufacture date, so it was obviously expiring. I did try manually charging it up but it didn't make any difference, problem remained. I purchased online a Halfords 096 AGM 70Ah as recomended by them as a replacement when i input my car reg. no. I paid them to fit it in their store carpark (i've always fitted batteries myself) but recent modern cars with stop/start charging technology should have new batteries registered in with a handheld battery registering tool (OBD2 scanning tool). Now when the Halfords man did mine, he removed the old EFB then put in the new AGM then sat in drivers seat, plugged in his registering gadget under the dash and on the screen of this tool he switched the battery chemistry type EFB to AGM which tells the onboard charging system the correct chemistry type of battery and from there onto the Registering new battery screen and press the go button. This erases the charging history values it's compiled from the old run-down battery and tells it a new battery has been installed to start afresh. Now this Halford's registering scanner can't input the uprated capacity of the new battery ie. 59Ah to 70Ah. They are only good for registering like-for-like ie. same size/capacity. Halford's will say it doesn't matter and some auto-techs one can find online will say similar, while others will say it does matter. One needs to put this question in the google search box to try and find answers. I find my battery doesn't get charged up full enough, when i've used a volt meter across the terminals about 2 days after a 1 hour engine run, driving to the supermarket click&collect leave engine running and coming home again, i find 12.25/12.3v eng. not started only opening the doors mirrors pop out amount of power used. Also the SOC % figure where the car clocks is will show 60 maybe 70%. I've never seen it higher than 80% , this i've read from Skoda/VW forums. I think the car charging system thinks it's got a new 59Ah to charge not a 70Ah, maybe the difference isn't large enough to matter but i would still like it to be correct. I know a professional VCDS scanner can get into the car system to make these adjustments. I've been looking online for an affordable OBD2 scanner to buy for home use but have not found one yet that can do the necessary battery adjustments other than just new registration. Sorry this reply is long winded, i feel like it's turned into a book ! I would love to hear any replies to this book.

One thing i forgot to say in my previous post above is i had to remove the interior plastic trim off the tailgate to aid the removal and refitting of the high-level brake light. I did the gluing repair indoors (long red lens back onto it's grey inner part that holds the spring retaining clips). I was going to buy a new brake light but thought i'd try a repair first and see how it goes and so far to date it's still looking good, holding firm. If anyone suspects that rainwater is getting in the top edge of the red high-level brake light, i first tried a bit of electricians wire tape to cover the whole top edge, to provide a throw-off when watering from above when using a garden watering can with sprinkler. With the tailgate interior trim removed and tailgate closed i sprinkled water over the high-level brake light, after this i opened the tailgate and put my hand inside where the back of the light can be touched and it was bone dry, i did the same watering again with the electricians tape removed and guess what, the back (inside) of the light was wet. I was thinking at first before taking everything apart to just run a small bead of sealant over the top edge of the red lens, but thought this would look a bit tacky. I hope everyone finds this helpful, regards M.