# Service bulletin 01133820355191

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: 10221985
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 01133820355191
- Manufacturer's date: 2021\-10\-23
- NHTSA component: FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER

## NHTSA's summary

EVAP emission control system leak detected

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10221985-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10221985-9999.pdf)

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

## Components

Fuel system, Evaporative emissions

## Vehicles listed

- 2013 to 2014 AUDI Q7

## Other bulletins for the same vehicles and component

- [01145820355193](/bulletins/10222040.md), 2022-09-26, Service bulletin: FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). The leak detection pump \(LDP\) is a vacuum\-driven, ECM\-controlled, diaphragm pump. In order for the LDP to operate, the engine must be running and vacuum must be applied to the vacuum switch on the LDP. The LDP pressurizes the EVAP system and monitors any pressure drop within a specified amount of time in order to detect a leak.

JSON: [/v1/bulletins/10221985](/v1/bulletins/10221985)

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