# Service bulletin 23T4 Circular Re

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: 10128312
- Published by NHTSA: 2018\-02\-05
- Manufacturer's number: 23T4 Circular Re
- Manufacturer's date: 2017\-04\-14
- NHTSA component: EQUIPMENT:OTHER:LABELS; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

## NHTSA's summary

The Environmental Protection Agency and California Air Resources Board have determined that Audi A3 vehicles equipped with a 2.0L 4\-cylinder TDI engine do not comply with applicable emissions regulations. The emissions control systems on the vehicles will not control emissions under off\-cycle conditions as effectively as during the federal test procedure. The extent of the emissions increase under off\-cycle conditions depends upon how the vehicles are driven.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10128312-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10128312-0001.pdf)

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

## Components

Engine, Equipment and accessories, Exhaust and emissions, Labels and manuals

## Vehicles listed

- 2015 AUDI A3 CABRIOLET

JSON: [/v1/bulletins/10128312](/v1/bulletins/10128312)

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