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Emergency
KNOWN FAULTS · Audi

Known faults for the Audi Q4 / Q6 / Q8 e-tron y A6 e-tron.

2019–2026 · Electric

Sources are not verified in real time and no entry confirms that your car is affected.

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1 known fault with sources

Engines: Eléctrico (Electric)

Applies if: Only the Q4 e-tron (MEB platform); not the Q6, Q8 or A6 e-tron.

MEB platform 12 V battery and softwareElectrics and software
Engine / equipment
MEB platform EVs: VW ID.3, ID.4, ID.5, ID.7 and ID.Buzz, Skoda Enyaq and Elroq, Cupra Born and Tavascan, Audi Q4 e-tron
Period mentioned
2020–2026
Symptoms
The car will not start or wake up after standing even though the traction battery is charged; 12 V battery warnings; screens that freeze or go black; charging sessions that will not start or cut out.
Possible cause described
The 12 V auxiliary battery frequently suffers deep discharge, and low voltage in turn causes starting and charging faults. Early software versions (1.x and 2.x) had many bugs; the ICAS1 control unit manages comfort and energy.
Check for the garage
Check the 12 V battery condition and the quiescent current draw, and confirm at the dealer that the car has the latest software. With ODIS: high-voltage battery (8B), high-voltage electronics (8C), charger (8E) and ICAS1 (C7).
Cost cited in the source
12 V battery or update: approx. €0–370 (converted from dollars)A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Engines for this model