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Service bulletin TT 20 18 03

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 id10149852
Published by NHTSA2018-12-03
Manufacturer's numberTT 20 18 03
Manufacturer's date2018-08-24
NHTSA componentFUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES

NHTSA's summary

Clarification that no G410 is installed on these engines.

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

Fuel system, Fuel tank

Vehicles listed
VOLKSWAGEN BEETLE2013, 2014, 2015, 2016, 2017
VOLKSWAGEN BEETLE CONVERTIBLE2013, 2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)
VOLKSWAGEN GOLF2013, 2014, 2015, 2016, 2017
VOLKSWAGEN JETTA2013, 2014, 2015, 2016, 2017
VOLKSWAGEN PASSAT2013, 2014, 2015, 2016, 2017

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
V2022012067976-12022-10-05. Service bulletin. Replacement fuel tank modification.
VIN4APIN202012012021-01-08. Service bulletin. Customer states MIL-on with P0556 Customer states MIL-on with P2421 Customer states MIL-on with Misfire code Customer states clutch pedal makes noise No crank, no start Customer states seat memory inoperative Customer states fuel odor/leak in the rear part of the vehicle (without a punctured fuel tank, hoses or pipes) or difficulty fueling fuel tank or fuel coming back up filler neck
V2317072041118152020-07-07. Service bulletin. Updated to remove duplicate bolt part number in Passat part table.
V011232 20313412019-04-01. Service bulletin. Technical Bulletin (DTC P0441 Stored in the Engine Control Module): Production tolerance in Diagnostic Module Tank Leakage (DMTL) pump could cause a false flow reading. The production solution to this issue is updated DMTL pumps as of pumps? production date September 2012. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
TT 20 18 052019-03-04. Service bulletin. Low side fuel pressure sensor explanation.
TT 20-16-012018-02-05. Service bulletin. Document informs how to check the fuel filler neck for blockage, and how to clean the part.
V201601_20441242017-06-20. Service bulletin. CREATE AND INSTALL A SIMILAR DESIGN FUEL TANK VENT TO INHIBIT PROBABITY OF RESTRICTIONS ESPECIALLY DURING FREEZING WEATHER.
V201601_20441242017-06-15. Service bulletin. CREATE AND INSTALL A SIMILAR DESIGN FUEL TANK VENT TO INHIBIT PROBABITY OF RESTRICTIONS ESPECIALLY DURING FREEZING WEATHER.