Mikkel Christensen
Owners of several Chinese electric vehicles are raising concerns after photos showing signs of corrosion on newer models began circulating online.
Owners of several Chinese electric vehicles are raising concerns after photos showing signs of corrosion on newer models began circulating online.
According to SpeedMe, the reports mainly involve MG and BYD vehicles, two brands that have rapidly expanded across Europe and overseas markets.
Rust reports
Drivers have shared images showing rust on underbodies, weld seams, wheel arches and lower structural components.
The complaints most commonly involve the MG ZS EV, MG4, MG5 and BYD Atto 3.
Many of the MG-related cases reportedly surfaced in the UK and Germany.
Wet weather and heavily salted winter roads are believed to increase pressure on corrosion protection systems.
Warranty concerns
Some owners say the larger issue is whether repairs are actually covered under warranty policies.
MG advertises a seven-year corrosion warranty, though coverage reportedly focuses mainly on body perforation rather than visible surface rust.
That distinction has reportedly led to disagreements between some dealerships and customers.
Several drivers argue corrosion should not appear so early on relatively new electric vehicles.
BYD criticism
BYD has also faced scrutiny following reported corrosion cases involving the Atto 3 in Australia and New Zealand.
Unlike Europe, those countries generally do not use road salt during winter.
In one reported case mentioned by SpeedMe, part of a vehicle reportedly required repainting, with BYD covering the repair costs.
Possible causes discussed include stone chips, coastal weather exposure and early paint preparation issues.
Buyer checks
BYD says its vehicles meet international corrosion standards and use electro-galvanised steel with zinc coatings.
The company has reportedly carried out inspections and warranty repairs in some of the reported cases.
The issue is not currently considered widespread, but it has started drawing attention among used EV buyers.
Experts and owners are increasingly advising buyers to inspect underbodies, weld seams, wheel arches and door edges before purchasing used models.
Sources: SpeedMe, owner forums, local media reports
