# Service bulletin Dealer 24HM

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: 10202639
- Published by NHTSA: 2021\-11\-05
- Manufacturer's number: Dealer 24HM
- Manufacturer's date: 2021\-10\-25
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

## NHTSA's summary

Affected Engine Control Software does not disable the warm\-up correction factor following engine start and warm\-up as described in Auxiliary Emission Control Device \(AECD\) documentation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10202639-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10202639-9999.pdf)

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

## Components

Engine, Exhaust and emissions, Cooling system, Engine control module

## Vehicles listed

- 2020 AUDI SQ7
- 2020 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.
- [A1324232060876\_2](/bulletins/10250292.md), 2024-03-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin provides information for when the MIL is illuminated; DTC P030000 is stored in the ECM, and corrosion marks are on the cylinder walls.
- [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.
- [A1923422069248\_4](/bulletins/10242916.md), 2023-10-05, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
- [A1923412062951\_3](/bulletins/10242911.md), 2023-10-05, Service bulletin: ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin provides information for when the red coolant warning lamp is on and the DTCs P218100, P017B00, P017C00, and/or P017E00 are stored in the ECM.
- [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.
- [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.
- [A2722412058831\_4](/bulletins/10208897.md), 2022-04-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). This bulletin contains a software update for DTC P0CA700 or U046900.

JSON: [/v1/bulletins/10202639](/v1/bulletins/10202639)

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