A4 quattro

1,079 service bulletins filed with NHTSA for this model year

• May 28, 2026POWER TRAINTSB_2074806_5

  This bulletin provides information when there are noises after selecting a ear while idling and the vehicle is stationary, or while driving.

• May 27, 2026POWER TRAINTSB_2059057_14

  This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.

• May 26, 2026UNKNOWN OR OTHERAOS-26-25

  This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: The ODIS Audi Brand update 2.41.1 is setting a ODS5003E error code when you perform the 90TV SVM flash.

• May 22, 2026ELECTRICAL SYSTEMTSB_2080517_4

  This bulletin provides informaiotn when the starter battery is discharged or defective.

• May 6, 2026POWER TRAINTSB_2074808_4

  The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Added Model years

• Apr 30, 2026ELECTRICAL SYSTEMTSB_2080517_3

  This bulletin provides informaiotn when the starter battery is discharged or defective.

• Apr 30, 2026UNKNOWN OR OTHERTSB_2022032_12

  This bulletin provides diagnostic information for the vehicle locking system.

• Apr 22, 2026UNKNOWN OR OTHERTSB_2070568_6

  This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool

• and 1,071 more

Source: NHTSA manufacturer communications (technical service bulletins).