AI DamageInverter covering, moisture and short circuit
The manufacturer describes cracked plastic inverter moulding inside the belt starter-generator. Moisture could enter, allowing electrolysis/shorting and smouldering/fire. This internal mechanism does not explain every darkened underhood part.
Volkswagen Group of America / NHTSA repository: Part 573 Safety Recall Report 20V-153 / Audi27H2
Applicability and the full analysisChronology does not expand market scope
Two new A5 fires during rail transport in China appear in the chronology. The US vehicle row names specified A6. That does not add every US A5 or establish identical equipment. (20V-153)
Volkswagen Group of America / NHTSA repository: Part 573 Safety Recall Report 20V-153 / Audi27H2
Applicability and the full analysisFull material about the model
Audi A6 2019–2020: moisture in the starter-generator and thermal tracesSpecified A6 2.0 TFSI mild-hybrid scope and evidence separating electrical defects from impact damage.