Problems with paintwork and corrosion on Fiat: affected models and engines

In 3 models from Fiat there are 5 documented faults with paintwork and corrosion. The most important: structural corrosion of the sills, underbody and rear crossmember on the Panda II, body corrosion and exhaust and underbody corrosion on the Fiat Panda II.

Reviewed on 30 October 2026How we work

Documented faults, from most to least important

Severity × frequency. Below each one, the Fiat models it appears in.

- Medium severityFrequency: OccasionalFiat Panda IIStructural corrosion of the sills, underbody and rear crossmember on the Panda IIAuto Świat and CarWiki warn that ageing Panda IIs also rust at the sills, underbody and rear crossmember, and that repairing a badly damaged one often isn't worth it; Autobaza.pl argues the opposite, that the bodywork resists corrosion well.
- Medium severityFrequency: OccasionalFiat SediciBody corrosionGebrauchtwagenberater says that rust is common on the SX4, the Sedici's twin, and that the technical inspection rarely detects it.
- Low severityFrequency: OccasionalFiat Panda IIExhaust and underbody corrosion on the Fiat Panda IIFiches-auto.fr reports corrosion cases, mainly of the exhaust silencer, and the 2025 TÜV report cited by Autoblog.it describes it as a persistent problem on older Panda 169s.
- Low severityFrequency: OccasionalFiat Punto IILacquer and body paint peelingYes: the fiches-auto.fr page lists 18 cases of paint flaking or losing its lacquer within about four years, with no warranty cover in the testimonials cited.
- Low severityFrequency: RareFiat SediciBumper paint peeling on the SediciSeveral Polish owners report that the paint on the Sedici's plastic bumpers lifts within a few months, and that repainting does not fix it; it is a cosmetic defect with no mechanical risk.

By Fiat model

Open yours to see only the faults that affect it, by engine and by year.

Frequently asked questions

What faults with paintwork and corrosion do Fiat cars have?

In 3 models from Fiat there are 5 documented faults with paintwork and corrosion. The most important: structural corrosion of the sills, underbody and rear crossmember on the Panda II, body corrosion and exhaust and underbody corrosion on the Fiat Panda II. Each fault has its own page with the affected years and versions, the symptoms and the repair cost.

Which Fiat models have the most problems with paintwork and corrosion?

Fiat Panda II (2 faults), Fiat Sedici (2 faults) and Fiat Punto II (1 fault).