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changing battery

nap69

Active Member
Apr 20, 2009
6
0
Hi folks,long time lurker,had a Leon 57 plate 2.0tdi Stylance until just recently and now got a 2015 2.0tdi FR Estate/sportback thing, so just wondering if i change the battery(as it still has the original) will the radio still work? sorry if its a stupid question but had my last car 16 years and things have moved on.When i have changed the battery on other vehicles i had to keep a 12v supply or needed a code for the radio.hope this makes sense TIA.
 

TheSwede

Active Member
Oct 20, 2018
375
215
Sweden
I have changed battery on my Leon Cupra 2018 without any extra 12v supply. No problems with the radio. Worked without any "code key"
 
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TheSwede

Active Member
Oct 20, 2018
375
215
Sweden
...also code the car for the new battery.
 

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LeylandVCDS

Active Member
Apr 20, 2015
609
365
Leyland, Lancashire
Yes, radio code is stored in the instrument cluster, will work even if you swap radios and then put old one back in. As soon as the power is restored, radio talks to the instrument cluster and grabs code from there. As @TheSwede also says, make sure the car is recoded to change serial number of battery, and also any changes to battery capacity and cranking output
 
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