Audi is recalling 9,048 Q4 e-tron electric SUVs because certain charging profiles combined with a state of charge above 80% may trigger thermal propagation inside the high-voltage battery. The recall follows a separate Volkswagen ID.4 battery campaign issued a couple of weeks earlier, and Audi is asking owners to keep their batteries under 80% in the meantime.
Why the Q4 e-tron is caught up in VW's battery problem
The Q4 e-tron and the ID.4 are mechanical siblings and likely share the same battery supplier, so VW's issue appears to have prompted Audi to investigate its own cars. According to the recall notice, Audi's Product Safety Committee was informed of thermal runaway events in some Volkswagen high-voltage batteries of the same type used in the Q4, after which Audi observed that certain charging profiles combined with a state of charge over 80% may result in thermal propagation within the pack.
The cells came from SK Battery Manufacturing in Hungary, part of SK On. No cause has been identified for the fault in either the Volkswagen or the Audi packs. Most of the batteries that may carry the defect were sold in North America, and no battery fires have been recorded.
What owners have to do now
Audi has run diagnostics on Q4 e-tron batteries, and any vehicle needing further assessment must go to a dealer for extra testing. Charging is being limited to 80% state of charge through a temporary charge limiter. The limiter stays in place until the battery is repaired or is found to be fine, at which point it is removed.
There is no fix yet, and Audi has not announced when a permanent remedy will arrive. That leaves owners in an awkward position: the software cap removes roughly 20% of the usable battery capacity they paid for, which can bite into daily driving and journey planning. The trade-off is deliberate, since keeping the pack below 80% should prevent the problem from arising.
A pattern across the group's EVs
The Q4 e-tron campaign lands shortly after Volkswagen recalled ID.4 battery packs that could potentially catch fire. Sharing a supplier and a pack design means a defect in one brand's cars can surface in another's, and Audi's action shows the group treating the Volkswagen findings as a signal to check its own fleet rather than waiting for failures to appear.
For buyers, the practical question is less about the recall itself than about timing. A charge limit is a stopgap, not a repair, and until Audi sets out the remedy, Q4 e-tron owners are driving a car with a known open defect and reduced range. The recall notice does not say how many of the 9,048 vehicles will need new hardware versus a clean diagnostic result.

