# Service bulletin TSB\-21\-10\-01

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: 10033027
- Published by NHTSA: 2010\-06\-25
- Manufacturer's number: TSB\-21\-10\-01
- Manufacturer's date: 2010\-01\-13
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

## NHTSA's summary

AUDI: IT IS POSSIBLE THAT THE COOLANT SUPPLY LINE AT THE TURBOCHARGER MAY LEAK ON AUDI VEHICLES WITH 2.0L TFSI ENGINES BUILT WITHIN A SPECIFIC PERIOD. \*PE

## 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, Cooling system, Turbocharger or supercharger

## Vehicles listed

- 2009 AUDI A4

## 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
- [Edition92](/bulletins/10231130.md), 2023-02-06, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. Idenifying and mixing factory fill engine coolants
- [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 \(Negative Pressure Deviation\).
- [24 14 50 2038212](/bulletins/10210603.md), 2022-05-02, Service bulletin: ENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Possible incorrect function on the sensor elements of the air mass meter.

JSON: [/v1/bulletins/10033027](/v1/bulletins/10033027)

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