Service campaign Circular 21ZV
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 campaign |
|---|---|
| NHTSA id | 11023830 |
| Published by NHTSA | 2025-10-03 |
| Manufacturer's number | Circular 21ZV |
| Manufacturer's date | 2025-09-09 |
| Campaign id or software version | 21ZV |
| NHTSA component | ENGINE |
NHTSA's summary
In affected vehicles, the turbocharger housing included an unintended and unused hose port. To avoid possible oil seepage or a small air leak over time, Volkswagen will proactively replace the turbocharger. Based on engineering judgement, this incorrect part is not anticipated to impact performance, fuel consumption, or emissions.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine
| VOLKSWAGEN JETTA | 2024 |
|---|---|
| VOLKSWAGEN TAOS | 2024 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| V0116152014815_20 | 2026-10-06. Service bulletin. Suggested fuel additive |
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| V1718062017813_24 | 2026-08-05. Service bulletin. Oil Consumption Measurement and Electronic Oil Consumption Measurement |
| V1719012012855_81 | 2026-07-07. Service bulletin. Volkswagen Engine Oil Standards |
| V0125042078297_5 | 2026-07-07. Service bulletin. Update programming for Evap Emission Control System |
| TT 13-20-01_3 | 2026-07-07. Service bulletin. Instruction, how to lubicate engine before initial start. |
| TT 10-18-02_2 | 2026-07-07. Service bulletin. Lubricating engine components before reassembly. |
| VOS-26-21 | 2026-04-06. Service bulletin. 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. |
| V0125042078397_4 | 2026-01-07. Service bulletin. Engine/Motor Control Module software update for DTC 0456 |
| SM 57-2025 | 2025-12-05. Other. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward. |
| WLA-25-11 | 2025-11-10. Service bulletin. Coolant Bleed Procedure |