2026-08-20 · 5 min read
Audi A5 Battery Malaysia — EFB/AGM VCDS
A5 8T: EFB battery 70Ah. B9 A5: AGM 70–80Ah (start-stop system — AGM mandatory). VCDS battery registration required after replacement on both generations. Malaysia EFB installed RM 500–800; AGM RM 700–1,200. Battery in boot (8T) or under bonnet (B9). Failure to register causes alternator overcharging and S-tronic adaptation reset.
A5 8T: EFB battery 70Ah. B9 A5: AGM 70–80Ah (start-stop system — AGM mandatory). VCDS battery registration required after replacement on both generations. Malaysia EFB installed RM 500–800; AGM RM 700–1,200. Battery in boot (8T) or under bonnet (B9). Failure to register causes alternator overcharging and S-tronic adaptation reset.