# Service bulletin A1923422069248\_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: 10242916
- Published by NHTSA: 2023\-10\-05
- Manufacturer's number: A1923422069248\_4
- Manufacturer's date: 2023\-09\-07
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM

## NHTSA's summary

This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10242916-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10242916-9999.pdf)

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

## Components

Engine, Cooling system

## Trouble codes named

P1BB4, P2181

## Vehicles listed

- 2019 to 2020 AUDI A8
- 2021 AUDI A8
- 2021 to 2022 AUDI RS 6 AVANT
- 2021 to 2022 AUDI RS 7
- 2020 to 2022 AUDI RS Q8
- 2020 to 2022 AUDI S8
- 2020 to 2022 AUDI SQ7
- 2020 to 2022 AUDI SQ8

## Other bulletins for the same vehicles and component

- [A9724072073305\_1](/bulletins/10251663.md), 2024-04-04, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This bulletins provides information when the radiator fans, alarm, or wipers are not working; DTC P048000, \_048100, U063200, U063300, U10F300, U10A400, P10EF00.
- [A2024672073032\_1](/bulletins/10251622.md), 2024-04-04, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. This bulletin provides information for when the MIL is on, DTC P148D00 and P044200; leak diagnostic pump.
- [A1924522065040\_4](/bulletins/10250538.md), 2024-03-06, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP; UNKNOWN OR OTHER. This bulletin provides information when the coolant warning light is on or when the coolant pump is replaced due to a coolant leak.
- [A1923452070349\_2](/bulletins/10245526.md), 2023-12-06, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin provides information for when there is a loss of coolant from the coolant pump \- V6 TFSI.
- [A4023562058460\_4](/bulletins/10236605.md), 2023-06-06, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin advises that a small amount of coolant loss is normal. Otherwise, clean and visually inspect the coolant system in the presence of a small leak to verify if a repair is needed, and then to repair a component if it is verified to have been leaking actively.
- [A1923392070349\_1](/bulletins/10236572.md), 2023-06-06, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin advises that a small amount of coolant loss is normal. Otherwise, clean and visually inspect the coolant system in the presence of a small leak to verify if a repair is needed, and then to repair a component if it is verified to have been leaking actively.
- [AVIN4PIN20230510](/bulletins/10236372.md), 2023-06-06, Service bulletin: EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:COOLING SYSTEM; STRUCTURE:BODY:DOOR; ENGINE AND ENGINE COOLING. Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is illuminated and DTC P05A000: Active Grille Air Shutter "A" Stuck is stored in the ECM. Check engine lamp is on, DTC \(s\) P010600, P023600, P023700, P023800 Belt noise from starter generator Leak from oil pan USB Trim detached from center console Airbag light on: DTC B100A1B or B100B1B 3.0L engine water pump leaking 3.0L engine sound generator malfunctioning
- [AVIN4PIN20230501](/bulletins/10236358.md), 2023-06-06, Service bulletin: STRUCTURE:BODY:DOOR; ENGINE AND ENGINE COOLING:COOLING SYSTEM. Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is illuminated and DTC P05A000: Active Grille Air Shutter "A" Stuck is stored in the ECM. Check engine lamp is on, DTC \(s\) P010600, P023600, P023700, P023800 Belt noise from starter generator Leak from oil pan Coolant resevoir cap damaged internally USB Trim detached from center console Airbag light on: DTC B100A1B or B100B1B 3.0L engine water pump leaking 3.0L engine sound generator malfunctioning
- [A1922302065040\_2](/bulletins/10219047.md), 2022-09-01, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. This bulletin advises to ensure that full diagnosis is completed on supporting systems prior to replacing the coolant pump.
- [A9222282065963\_1](/bulletins/10208261.md), 2022-03-04, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. This bulletin describes various conditions that may have arisen due to a leak in the corrugated windshield washer hose, and the associated repair.

JSON: [/v1/bulletins/10242916](/v1/bulletins/10242916)

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