# Service bulletin TSB\_2074808\_4

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: 11033475
- Published by NHTSA: 2026\-06\-04
- Manufacturer's number: TSB\_2074808\_4
- Manufacturer's date: 2026\-05\-06
- NHTSA component: POWER TRAIN

## NHTSA's summary

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

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033475-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033475-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2013 AUDI A3
- 2015 to 2020 AUDI A3
- 2022 to 2026 AUDI A3
- 2015 to 2019 AUDI A3 CABRIOLET
- 2016 to 2018 AUDI A3 SPORTBACK E\-TRON
- 2013 to 2025 AUDI A4
- 2017 to 2025 AUDI A4 ALLROAD
- 2013 to 2024 AUDI A5
- 2026 AUDI A5
- 2013 to 2020 AUDI A5 CABRIOLET
- 2018 to 2025 AUDI A5 SPORTBACK
- 2013 to 2026 AUDI A6
- 2020 to 2026 AUDI A6 ALLROAD
- 2025 AUDI A6 SPORTBACK E\-TRON
- 2027 AUDI A6 SPORTBACK E\-TRON
- 2013 to 2025 AUDI A7
- 2021 to 2022 AUDI A7 E
- 2013 to 2020 AUDI A8
- 2021 to 2026 AUDI A8
- 2020 AUDI A8 L E
- 2021 AUDI A8 L E
- 2013 to 2016 AUDI ALLROAD
- 2019 AUDI E\-TRON
- 2021 to 2023 AUDI E\-TRON
- 2022 to 2024 AUDI E\-TRON GT
- 2025 AUDI E\-TRON GT
- 2020 to 2022 AUDI E\-TRON SPORTBACK
- 2023 AUDI E\-TRON SPORTBACK
- 2015 to 2025 AUDI Q3
- 2022 to 2026 AUDI Q4 E\-TRON
- 2022 to 2026 AUDI Q4 SPORTBACK E\-TRON
- 2013 to 2026 AUDI Q5
- 2020 to 2021 AUDI Q5 E
- 2022 AUDI Q5 E
- 2023 to 2025 AUDI Q5 E
- 2013 AUDI Q5 HYBRID
- 2015 AUDI Q5 HYBRID
- 2021 to 2026 AUDI Q5 SPORTBACK
- 2025 AUDI Q6 E\-TRON
- 2027 AUDI Q6 E\-TRON
- 2027 AUDI Q6 SPORTBACK E\-TRON
- 2013 to 2015 AUDI Q7
- 2017 to 2026 AUDI Q7
- 2019 to 2026 AUDI Q8
- 2024 AUDI Q8 E\-TRON
- 2024 AUDI Q8 SPORTBACK E\-TRON
- 2014 to 2015 AUDI R8
- 2017 to 2018 AUDI R8
- 2020 to 2023 AUDI R8
- 2023 AUDI R8 GT
- 2014 to 2015 AUDI R8 SPYDER
- 2017 to 2018 AUDI R8 SPYDER
- 2020 to 2023 AUDI R8 SPYDER
- 2017 to 2020 AUDI RS 3
- 2022 to 2026 AUDI RS 3
- 2013 to 2015 AUDI RS 5
- 2018 to 2019 AUDI RS 5
- 2021 to 2024 AUDI RS 5
- 2013 to 2015 AUDI RS 5 CABRIOLET
- 2019 AUDI RS 5 SPORTBACK
- 2021 to 2025 AUDI RS 5 SPORTBACK
- 2021 to 2026 AUDI RS 6 AVANT
- 2014 to 2018 AUDI RS 7
- 2021 to 2026 AUDI RS 7
- 2022 to 2026 AUDI RS E\-TRON GT
- 2020 to 2026 AUDI RS Q8
- 2026 AUDI S E\-TRON GT
- 2015 to 2020 AUDI S3
- 2022 to 2026 AUDI S3
- 2013 to 2016 AUDI S4
- 2018 to 2025 AUDI S4
- 2013 to 2024 AUDI S5
- 2026 AUDI S5
- 2013 to 2024 AUDI S5 CABRIOLET
- 2018 to 2025 AUDI S5 SPORTBACK
- 2013 to 2018 AUDI S6
- 2020 to 2025 AUDI S6
- 2025 AUDI S6 SPORTBACK E\-TRON
- 2027 AUDI S6 SPORTBACK E\-TRON
- 2013 to 2018 AUDI S7
- 2020 to 2025 AUDI S7
- 2013 to 2018 AUDI S8
- 2020 to 2026 AUDI S8
- 2014 to 2026 AUDI SQ5
- 2021 to 2026 AUDI SQ5 SPORTBACK
- 2025 AUDI SQ6 E\-TRON
- 2027 AUDI SQ6 E\-TRON
- 2027 AUDI SQ6 SPORTBACK E\-TRON
- 2020 to 2026 AUDI SQ7
- 2020 to 2026 AUDI SQ8
- 2024 AUDI SQ8 E\-TRON
- 2024 AUDI SQ8 SPORTBACK E\-TRON
- 2013 to 2023 AUDI TT
- 2013 to 2023 AUDI TT ROADSTER
- 2013 AUDI TT RS
- 2018 to 2022 AUDI TT RS
- 2013 to 2023 AUDI TTS
- 2014 to 2015 AUDI TTS ROADSTER

## Recalls for the same vehicles and component

- [22V225000](/recalls/nhtsa/22V225000.md), 2022-04-06: POWER TRAIN:MANUAL TRANSMISSION:LUBRICANT
- [2020207](/recalls/tc/2020207.md), 2020-05-13: Powertrain
- [2018512](/recalls/tc/2018512.md), 2018-09-17: Powertrain
- [17V297000](/recalls/nhtsa/17V297000.md), 2017-05-03: POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## Other bulletins for the same vehicles and component

- [TSB\_2080077\_4](/bulletins/11038084.md), 2026-10-05, Service bulletin: POWER TRAIN. This bulletin provides information when the gearbox warning light illuminates; drive system fault with event memory entry P060A00; P1FD700.
- [TSB\_2080075\_4](/bulletins/11038082.md), 2026-10-05, Service bulletin: POWER TRAIN. This TSB provides information when there is a drive system fault in the instrument clusteer, DTC P066700, symptom 20752, address: 0002.
- [TSB\_2079998\_5](/bulletins/11038078.md), 2026-10-05, Service bulletin: POWER TRAIN. This bulletin provides information when there is a drive system fault in the insrument cluster; DTC P071100 symptom 20756 \- diagnostic address 0002.
- [TSB\_2082948\_1](/bulletins/11036960.md), 2026-09-04, Service bulletin: POWER TRAIN. This bulletin provides information when the transmission position cannot be selected.
- [TSB\_2081071\_3](/bulletins/11036939.md), 2026-09-04, Service bulletin: POWER TRAIN. This Pending Service Solution \(PSS\) requests that technicians enter a record in the PSS databse when there is functional issue in the gearbox control unit with DTC P187C00; SW Cluster 6.
- [TSB\_2059057\_15](/bulletins/11036901.md), 2026-09-04, Service bulletin: POWER TRAIN. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
- [TSB\_2082617\_1](/bulletins/11035847.md), 2026-08-05, Service bulletin: POWER TRAIN. This bulletin provides information when there are noises in the overrun \( e.g. whirring, howling\) \- vehicles with 0BC.
- [TSB\_2082615\_1](/bulletins/11035846.md), 2026-08-05, Service bulletin: POWER TRAIN. This bulletin provides inormation when the ATF pipes leak; Q7 with 0C8 gearbox.
- [TSB\_2034863\_5](/bulletins/11035798.md), 2026-08-05, Service bulletin: POWER TRAIN. This bulletin provides infomraiotn when there is a gearbox malfunction message in the instrument clostuer; DTC P0706; vehicles with 0AW gearbox.
- [TSB\_2082106\_2](/bulletins/11034708.md), 2026-07-07, Service bulletin: POWER TRAIN. Ths bulletin provides informaiotn when the gearbox warning lamp is on, DTC P060A00 \(8693\) in gearbox control unit; 0BK and 0BL gearbox.

JSON: [/v1/bulletins/11033475](/v1/bulletins/11033475)

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