Problems with a fire risk on Audi: affected models and engines

In 5 models from Audi there are 5 documented faults with a fire risk. The most important: risk of short circuit and fire due to moisture in electrical components, battery cell modules with a risk of overheating and fire and faulty modules in the high-voltage battery with fire risk.

Reviewed on 30 October 2026How we work

Documented faults, from most to least important

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

- Critical severityFrequency: OccasionalAudi A4 B9Risk of short circuit and fire due to moisture in electrical componentsAudi recalled A4 B9 units built between May 2017 and March 2020 because moisture can seep into an electrical component and cause a short circuit, with a risk of the vehicle catching fire.Repair: €0
- Critical severityFrequency: OccasionalAudi e-tron / Q8 e-tronBattery cell modules with a risk of overheating and fireYes: in February 2024 Audi recalled 42,668 e-trons and e-tron Sportbacks built between March 2018 and March 2022 (1,453 in Germany) because voltage loss in some cell modules can cause thermal overload and fire.
In e-tron
- Critical severityFrequency: OccasionalMEB (ID.3, ID.4, ID.7, ID.Buzz, Enyaq, Born, Q4 e-tron)Faulty modules in the high-voltage battery with fire riskYes: in March 2026 Volkswagen and Cupra recalled around 74,600 ID.3, ID.4, ID.5 and ID. Buzz and around 19,500 Born built between 2022 and 2024, because some battery modules can overheat while charging and, in the worst case, catch fire. It is fixed with software and by replacing modules.
In Q4 e-tron
- Critical severityFrequency: OccasionalAudi Q5 IIRisk of short circuit and fire from moisture in electrical componentsAudi recalled Q5 II cars built between May 2017 and March 2020 because moisture can get into an electrical component and cause a short circuit, with a risk of the vehicle catching fire.Repair: €0
- Critical severityFrequency: RareAudi A5 IIBelt-driven alternator-starter on the 2.0 TFSI mild hybrid with fire riskAudi recalled A5s with the 2.0 TFSI engine and mild hybrid system built between May 2017 and March 2020 because moisture could enter the belt-driven alternator-starter, causing a short circuit and overheating with a risk of fire.

By Audi model

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

Engines and gearboxes involved

Frequently asked questions

What faults with a fire risk do Audi cars have?

Which Audi models have the most problems with a fire risk?

Audi A4 B9 (1 fault), Audi A5 II (1 fault), Audi Q5 II (1 fault) and Audi e-tron (1 fault).

Which Audi engines have faults with a fire risk?

Audi e-tron / Q8 e-tron (1 fault) and MEB (ID.3, ID.4, ID.7, ID.Buzz, Enyaq, Born, Q4 e-tron) (1 fault).