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Just received a quote from my local independent VW Audi non-dealership repair center for a new battery. I queried whether the new battery would require coding he stated that this was not necessary on the Q3?
 

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Fairly sure all UK spec Audi Q3s have Stop Start and are fitted with an AGM battery. This in turn dictates the car will have a battery energy management system which requires a new battery to be coded.
I've read that if the new battery is not coded there is a risk of reduced battery life as the charging system has not been reset and optimised for the new battery.
I fitted a new battery recently and coded it with a VCDS diagnostic tool

Cheers Spike
 
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