# Service bulletin A171789 2040644

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: 10133360
- Published by NHTSA: 2018\-04\-16
- Manufacturer's number: A171789 2040644
- Manufacturer's date: 2017\-11\-21
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

## NHTSA's summary

This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10133360-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10133360-0001.pdf)

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

## Components

Engine, Exhaust and emissions, Exhaust manifold, pipes and muffler

## Vehicles listed

- 2013 to 2016 AUDI A6
- 2013 to 2016 AUDI A7
- 2013 to 2016 AUDI A8

## Other bulletins for the same vehicles and component

- [A011862 2050329\_](/bulletins/10138312.md), 2018-05-21, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin contains repair instructions for when the MIL is on and there are one of several DTCs stored in the ECM.
- [A011747 2048411](/bulletins/10133359.md), 2018-04-16, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when a 4.0 liter engine has a MIL on, the engine may be limited to 4,000rpm, and there are DTCs about the intake manifold flap adjustment.
- [A261629 2045720\-](/bulletins/10128003.md), 2018-02-05, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This bulletin provides information regarding the replacement of the front muffler if vibrations are noticed in the seat or center arm rest.
- [A24165320440031](/bulletins/10093588.md), 2017-03-03, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\); EQUIPMENT. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316.
- [A24165420440032](/bulletins/10092722.md), 2017-02-23, Service bulletin: ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND REPAIR ISSUES WITH THE INTAKE MANIFOLD FLAP VALVE N316.
- [TSB\-01\-13\-16](/bulletins/10053884.md), 2013-12-02, Service bulletin: ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. AUDI: DUE TO DEFECTIVE VACUUM ACTUATORS, SOME VEHICLES EXPERIENCE HIGH RPMS WITH A POWER REDUCTION, INTAKE MANIFOLD RUNNER CONTROL STUCK CLOSED \(BANK 1 AND BANK 2\) POWER AND VACUUM ACTUATOR NEEDS TO BE UPDATED. MODEL 2013 A6, A7, S4, S5 \(CAB\), Q7, Q5. \*PE

JSON: [/v1/bulletins/10133360](/v1/bulletins/10133360)

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