# Service bulletin A2120352059258\_1

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: 10174549
- Published by NHTSA: 2020\-05\-07
- Manufacturer's number: A2120352059258\_1
- Manufacturer's date: 2020\-04\-28
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

## NHTSA's summary

This bulletin contains instructions for diagnosing a damaged turbocharger and calling TAC.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174549-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174549-9999.pdf)

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

## Components

Engine, Turbocharger or supercharger

## Vehicles listed

- 2017 to 2018 AUDI A8
- 2017 to 2018 AUDI RS 7
- 2017 to 2018 AUDI S6
- 2017 to 2018 AUDI S7
- 2017 AUDI S8

## Recalls for the same vehicles and component

- [22V178000](/recalls/nhtsa/22V178000.md), 2022-03-23: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

## Other bulletins for the same vehicles and component

- [A2120362044640\_9](/bulletins/10182481.md), 2020-12-04, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ELECTRICAL SYSTEM:STARTER ASSEMBLY. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
- [A2119322034999\_4](/bulletins/10161603.md), 2019-07-09, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This informational bulletin contains an explanation for a discolored pipe.
- [A211931 2044640\-](/bulletins/10160461.md), 2019-05-28, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.
- [A211317 2034999\-](/bulletins/10124671.md), 2017-12-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. On 4.0l bi\-turbo FSI engines, the pipe on the impeller side of the bank 2 turbocharger looks discolored when compared to the pipe on the bank 1 turbocharger. The crankcase breather is only connected to the bank 2 turbocharger inlet. Blow\-by gases from the crankcase breather discolor the pipe. This is a normal condition.
- [A21162320349993](/bulletins/10095634.md), 2017-03-17, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. THIS TECHNICAL SERVICE BULLETIN EXPLAINS WHY THE IMPELLER SIDE OF THE BANK 2 TURBOCHARGER LOOKS DISCOLORED.

JSON: [/v1/bulletins/10174549](/v1/bulletins/10174549)

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