# Service bulletin TSB\-21\-12\-10

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: 10047679
- Published by NHTSA: 2012\-12\-05
- Manufacturer's number: TSB\-21\-12\-10
- Manufacturer's date: 2012\-10\-25
- Replaces: TSB\-21\-13\-11
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

## NHTSA's summary

AUDI: EXCESSIVE WEAR FROM LINKAGE FOR WASTE GATE ACTUATION, LEADS TO PLAY AT THE WASTE GATE FLAP CAUSING BOOST ESCAPING THROUGH LOOSE FLAP OF TURBOCHARGER. MODELS 2009\-2010 A4, A5, A5 CAB. \*PE UPDATED 04/15/2013 \*JS

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine, Turbocharger or supercharger

## Vehicles listed

- 2009 to 2010 AUDI A4
- 2009 to 2010 AUDI A5
- 2010 AUDI A5 CABRIOLET

## Other bulletins for the same vehicles and component

- [2112102031245](/bulletins/10250437.md), 2024-02-20, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. P0299 Negative pressure deviation, turbocharger excessive wastegate play
- [01133020270825](/bulletins/10228325.md), 2023-01-03, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. DTC P0234 \(Turbo/Super Charger Overboost Condition\) is stored in the engine control module, J623 \(address word 01\). No other DTCs are stored. Technical Background DTC P0234 can be set inadvertently by the software application.
- [01133020270825](/bulletins/10225004.md), 2022-10-31, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. DTC P0234 \(Turbo/Super Charger Overboost Condition\) is stored in the engine control module, J623 \(address word 01\). No other DTCs are stored. Technical Background DTC P0234 can be set inadvertently by the software application.
- [01133020270825](/bulletins/10221977.md), 2022-09-26, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. DTC P0234 \(Turbo/Super Charger Overboost Condition\) is stored in the engine control module, J623 \(address word 01\). No other DTCs are stored. Technical Background DTC P0234 can be set inadvertently by the software application.
- [131420312455](/bulletins/10216700.md), 2022-08-01, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 \(Negative Pressure Deviation\).
- [131320312454](/bulletins/10216699.md), 2022-08-01, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 \(Negative Pressure Deviation\).
- [131220312453](/bulletins/10216698.md), 2022-08-01, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 \(Negative Pressure Deviation\).
- [131120312452](/bulletins/10216697.md), 2022-08-01, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 \(Negative Pressure Deviation\).
- [A211316 2031245\-](/bulletins/10124497.md), 2017-12-05, Service bulletin: ENGINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Supersedes Technical Service Bulletin Group 21 number 13\-14 dated June 7, 2013. MIL on. DTC P029900 \(Negative Pressure Deviation\) is stored as a static fault in the engine control module \(ECM\), J623 \(address word 01\). Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P029900 \(Negative Pressure Deviation\).
- [A211313 2031245\-](/bulletins/10123907.md), 2017-11-17, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Supersedes Technical Service Bulletin Group 21 number 13\-12 dated April 1, 2013. MIL on, DTC P0299 \(Negative Pressure Deviation\) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets DTC P0299 \(Negative Pressure Deviation\).

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