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Service bulletin Dealer Letter -

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 id10128111
Published by NHTSA2018-02-05
Manufacturer's numberDealer Letter -
Manufacturer's date2015-08-05
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Frequently Asked Questions: The coolant pump may develop a small leak over time. This document informs about the questions that may arrise to have to diagnosis and servicing the issue.

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

Vehicles listed
VOLKSWAGEN GTI2011, 2012, 2013, 2014

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
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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.
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.
V1718032037201_202025-11-10. Service bulletin. Proper engine oil level before leaving the factory.
V0116152014815_192025-11-10. Service bulletin. A list of suggested fuel stations