# Service bulletin TSB\_2050723\_8

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: 11025324
- Published by NHTSA: 2025\-11\-08
- Manufacturer's number: TSB\_2050723\_8
- Manufacturer's date: 2025\-10\-17
- NHTSA component: POWER TRAIN

## NHTSA's summary

This bulletin provides information when there is a gearbox malfunction warning; DTC P0C2900 in the TCM.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025324-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025324-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P0C29

## Vehicles listed

- 2017 to 2018 AUDI A3
- 2017 to 2018 AUDI A3 CABRIOLET
- 2018 AUDI S3

## Other bulletins for the same vehicles and component

- [TSB\_2077475\_2](/bulletins/11033484.md), 2026-06-04, Service bulletin: POWER TRAIN. This TSB provides information when the gearbox warning light is on; event memory entry P0174A00/P174E00.
- [TSB\_2074808\_4](/bulletins/11033475.md), 2026-06-04, Service bulletin: POWER TRAIN. 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
- [TSB\_2067365\_3](/bulletins/11028399.md), 2026-02-06, Service bulletin: POWER TRAIN. This bulletin provides information when there is an oil leak near the transmission cooler.
- [TSB\_2074808\_3](/bulletins/11027358.md), 2026-01-07, Service bulletin: POWER TRAIN. This bulletin provides additoinal information to assist in determining the energy content of lithium\-ion high\-voltage batteries.
- [TSB\_2060560\_4](/bulletins/11021441.md), 2025-08-05, Service bulletin: POWER TRAIN. This bulletin providesi nformation when various DTCs are stored; high maximum temperature recorded for clutch K1.
- [TSB\_2077475\_1](/bulletins/11017610.md), 2025-05-03, Service bulletin: POWER TRAIN. This TSB provides information when the earbox warning light is on; event memory entry P0174A00/P174E00.
- [TSB\_2050723\_7](/bulletins/11016508.md), 2025-04-04, Service bulletin: POWER TRAIN. This bulletin provides information when there is a gearbox malfunction warning; DTC P0C2900 in the TCM.
- [A4025862061464\_9](/bulletins/11013693.md), 2025-02-05, Service bulletin: POWER TRAIN. This bulletin provides information when a cracking noise can be heard from the vehicle front or rear end while changing direction.
- [A0124442075010\_2](/bulletins/11011241.md), 2024-12-04, Service bulletin: POWER TRAIN. This bulletin provides information when the engine warning lamp lights up in the instrument cluster, and the vehicle has reduced power. DTCs P256300, P056E00, P00AF00.
- [A0124392075010\_1](/bulletins/11009318.md), 2024-10-28, Service bulletin: POWER TRAIN. This bulletin provides information when the engine warning lamp lights up in the instrument cluster, and the vehicle has reduced power. DTCs P256300, P056E00, P00AF00.

JSON: [/v1/bulletins/11025324](/v1/bulletins/11025324)

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