WenmarOpen by Wenmar Pro

Service bulletin Dealer 20DZ

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10241190
Published by NHTSA2023-09-01
Manufacturer's numberDealer 20DZ
Manufacturer's date2023-08-15
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

Dealer Letter to announce Repair Available – Emissions Service Action 20DZ / EVAP Purge Valve and Hose Assembly

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, Exhaust and emissions

Vehicles listed
VOLKSWAGEN JETTA2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
V0116152014815_202026-10-06. Service bulletin. Suggested fuel additive
V1718062017813_242026-08-05. Service bulletin. Oil Consumption Measurement and Electronic Oil Consumption Measurement
V1719012012855_812026-07-07. Service bulletin. Volkswagen Engine Oil Standards
TT 13-20-01_32026-07-07. Service bulletin. Instruction, how to lubicate engine before initial start.
TT 10-18-02_22026-07-07. Service bulletin. Lubricating engine components before reassembly.
VOS-26-212026-04-06. 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.
WLA-25-112025-11-10. Service bulletin. Coolant Bleed Procedure
V2125012077512_22025-11-10. Service bulletin. Turbocharger repair or replace due to stuck wastegate.
V1917012022548_152025-11-10. Service bulletin. G12Evo can now be mixed with previous coolants.
V1718062017813_232025-11-10. Service bulletin. How to measure engine oil consumption.