# Service bulletin Circular24EFREV1

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: 10210221
- Published by NHTSA: 2022\-05\-05
- Manufacturer's number: Circular24EFREV1
- Manufacturer's date: 2022\-04\-08
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Engine and/or transmission control module software designed and certified for similar models/model years was used in vehicles affected by this emissions service action. It is undetermined whether there could be an impact to OBD or CO2 emissions. As a precautionary measure, Volkswagen is proactively updating the software calibrations on affected vehicles. Criteria 05 added to claiming instructions \- Criteria 05 added to claiming instructions

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210221-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210221-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2012 VOLKSWAGEN CC
- 2013 VOLKSWAGEN CC
- 2014 to 2016 VOLKSWAGEN CC
- 2012 VOLKSWAGEN EOS
- 2013 VOLKSWAGEN GOLF
- 2012 to 2017 VOLKSWAGEN PASSAT
- 2012 VOLKSWAGEN TIGUAN
- 2014 to 2015 VOLKSWAGEN TIGUAN
- 2012 VOLKSWAGEN TOUAREG

## Recalls for the same vehicles and component

- [17V309000](/recalls/nhtsa/17V309000.md), 2017-05-11: POWER TRAIN:DRIVELINE:DRIVESHAFT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [15V705000](/recalls/nhtsa/15V705000.md), 2015-10-26: ENGINE AND ENGINE COOLING:ENGINE; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
- [2015504](/recalls/tc/2015504.md), 2015-10-23: Engine

## Other bulletins for the same vehicles and component

- [V0116152014815\_20](/bulletins/11038146.md), 2026-10-06, Service bulletin: ENGINE. Suggested fuel additive
- [SM 35\-2026](/bulletins/11036867.md), 2026-09-04, Other: ENGINE. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
- [V1718062017813\_24](/bulletins/11035762.md), 2026-08-05, Service bulletin: ENGINE. Oil Consumption Measurement and Electronic Oil Consumption Measurement
- [V1719012012855\_81](/bulletins/11034617.md), 2026-07-07, Service bulletin: ENGINE. Volkswagen Engine Oil Standards
- [TT 13\-20\-01\_3](/bulletins/11034614.md), 2026-07-07, Service bulletin: ENGINE. Instruction, how to lubicate engine before initial start.
- [TT 10\-18\-02\_2](/bulletins/11034613.md), 2026-07-07, Service bulletin: ENGINE. Lubricating engine components before reassembly.
- [VOS\-26\-21](/bulletins/11030847.md), 2026-04-06, Service bulletin: ENGINE. This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the error message ERP0204E could occur during perform initial operation, software configuration, SVM updates for any control module\(s\) etc.
- [WLA\-25\-11](/bulletins/11025452.md), 2025-11-10, Service bulletin: ENGINE. Coolant Bleed Procedure
- [V1917012022548\_15](/bulletins/11025437.md), 2025-11-10, Service bulletin: ENGINE. G12Evo can now be mixed with previous coolants.
- [V1718062017813\_23](/bulletins/11025436.md), 2025-11-10, Service bulletin: ENGINE. How to measure engine oil consumption.

JSON: [/v1/bulletins/10210221](/v1/bulletins/10210221)

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