# Service bulletin A0121152048402\_9

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: 10203686
- Published by NHTSA: 2021\-12\-07
- Manufacturer's number: A0121152048402\_9
- Manufacturer's date: 2021\-11\-22
- NHTSA component: EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE

## NHTSA's summary

This bulletin contains a software update and potential part replacement to address DTCs P05A000 and P25EA00.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203686-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203686-9999.pdf)

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

## Components

Engine, Equipment and accessories, Engine control module

## Trouble codes named

P05A0, P25EA

## Vehicles listed

- 2017 to 2019 AUDI Q7

## Other bulletins for the same vehicles and component

- [A2723602067906\_3](/bulletins/10242930.md), 2023-10-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin provides information for when DTC P0A7D00 is stored.
- [A2023522065287\_6](/bulletins/10230589.md), 2023-02-07, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin provides instructions for when the MIL is on and DTC P044200 and/or P045600 is stored in the ECM.
- [A2022402065287\_2](/bulletins/10206879.md), 2022-02-04, Service bulletin: FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS; UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin describes the repair procedure to address an internal defect in the EVAP leak detection pump causing false leak detection.
- [A2021392065287\_1](/bulletins/10205901.md), 2022-01-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). There is an internal defect in the EVAP leak detection pump causing false leak detection.

JSON: [/v1/bulletins/10203686](/v1/bulletins/10203686)

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