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Paint bubbling and lifting on the roof panel and bonnet of white or pearl white Hyundai i20 Mk3 models within 2-3 years of registration. This is a known paint adhesion issue affecting certain production batches. Hyundai has repainted affected vehicles under goodwill warranty in many cases. The bubbling typically starts at panel edges and spreads if not addressed. Document the fault carefully and approach the dealer with photographic evidence for a warranty claim.
Based on 43 driver confirmations
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Hyundai i20 2021 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
Bubbling on the bonnet leading edge and front bumper top. Stone chips had broken through to bare metal and rust had spread under the paint. Bodyshop treated the rust, primed and colour-matched the affected areas. £280. Not warranty as it started from chips.
Parts replaced: Paint repair
Bubbling on the roof and rear wheel arches at 3 years old. Took it to the dealer who agreed it was a manufacturing defect — rust starting under the lacquer. Full repaint of affected panels under the Hyundai 5-year paint warranty. No charge. Document everything and push them.
Parts replaced: None — warranty repair
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