# Service bulletin Bulletin 53ZC 20251218

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11027386
- Published by NHTSA: 2026\-01\-07
- Manufacturer's number: Bulletin 53ZC 20251218
- Manufacturer's date: 2025\-12\-18
- Campaign id or software version: 53ZC
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Engine Control Module Software Update \(WARR EXT – U82\). Problem description updated.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027386-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027386-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Vehicles listed

- 2022 to 2025 AUDI A6
- 2022 to 2025 AUDI A6 ALLROAD
- 2022 to 2025 AUDI A7
- 2022 AUDI A8
- 2022 to 2025 AUDI Q7
- 2022 to 2023 AUDI Q8
- 2022 to 2024 AUDI S4
- 2022 to 2024 AUDI S5
- 2022 to 2024 AUDI S5 CABRIOLET
- 2022 to 2025 AUDI S5 SPORTBACK
- 2022 to 2025 AUDI SQ5
- 2022 to 2025 AUDI SQ5 SPORTBACK

JSON: [/v1/bulletins/11027386](/v1/bulletins/11027386)

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