# Service bulletin A1921182061604\_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: 10194629
- Published by NHTSA: 2021\-06\-03
- Manufacturer's number: A1921182061604\_4
- Manufacturer's date: 2021\-05\-28
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

This bulletin contains instructions for resolving a coolant leak.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194629-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194629-9999.pdf)

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

## Components

Electrical system, Engine

## Vehicles listed

- 2007 to 2013 AUDI A3
- 2007 to 2016 AUDI A4
- 2012 to 2015 AUDI A6
- 2013 AUDI A8
- 2012 to 2014 AUDI Q3
- 2015 to 2018 AUDI Q3
- 2011 to 2017 AUDI Q5
- 2009 to 2014 AUDI TT

## Recalls for the same vehicles and component

- [2022133](/recalls/tc/2022133.md), 2022-03-23: Engine
- [22V178000](/recalls/nhtsa/22V178000.md), 2022-03-23: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
- [2018680](/recalls/tc/2018680.md), 2018-12-05: Electrical
- [18V862000](/recalls/nhtsa/18V862000.md), 2018-12-05: ELECTRICAL SYSTEM:WIRING
- [2018174](/recalls/tc/2018174.md), 2018-04-11: Electrical
- [18V229000](/recalls/nhtsa/18V229000.md), 2018-04-11: ENGINE AND ENGINE COOLING:COOLING SYSTEM
- [2017483](/recalls/tc/2017483.md), 2017-10-06: Electrical
- [17V622000](/recalls/nhtsa/17V622000.md), 2017-10-05: ELECTRICAL SYSTEM:WIRING
- [2017002](/recalls/tc/2017002.md), 2017-01-04: Engine
- [17V002000](/recalls/nhtsa/17V002000.md), 2017-01-03: ENGINE AND ENGINE COOLING:COOLING SYSTEM

## Other bulletins for the same vehicles and component

- [TSB\_2073747\_4](/bulletins/11035810.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
- [SM 01\-2026](/bulletins/11035797.md), 2026-08-05, Other: ENGINE. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
- [TSB\_2082323\_1](/bulletins/11034728.md), 2026-07-07, Service bulletin: ENGINE. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- [TSB\_2074640\_3](/bulletins/11034657.md), 2026-07-07, Service bulletin: ENGINE. This bulletin provides information when there is increased oil consumption; \>0.5ltr/1000 km.
- [TSB\_2073867\_3](/bulletins/11034656.md), 2026-07-07, Service bulletin: ENGINE. This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM.
- [TSB\_2059335\_7](/bulletins/11034643.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when there are noises from the area around the instrument cluster.
- [TSB\_2074729\_3](/bulletins/11034634.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
- [TSB\_2080517\_4](/bulletins/11033492.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
- [TSB\_2080517\_3](/bulletins/11032165.md), 2026-05-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiotn when the starter battery is discharged or defective.
- [TSB\_2081409\_1](/bulletins/11031053.md), 2026-04-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiton regarding the Universal Traffic Recorder.

JSON: [/v1/bulletins/10194629](/v1/bulletins/10194629)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20A1921182061604_4&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10194629&vehicle=Service%20bulletin%20A1921182061604_4)