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Service bulletin TT 91-14-04

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 id10122621
Published by NHTSA2017-11-08
Manufacturer's numberTT 91-14-04
Manufacturer's date2014-08-01
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

NHTSA's summary

Tech Tips (Entertainment Center MDI Cables ? 2015 (A7) Golf/GTI): For the A7 Golf/GTI the MDI cables are not the same as the ones used in the A6 Platform. This document informs how to tell the difference.

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

Electrical system, 12-volt battery

Vehicles listed
VOLKSWAGEN GOLF SPORTWAGEN2015
VOLKSWAGEN GTI2015

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
V2719012011894242023-08-04. Service bulletin. Battery Testing and Charging using Midtronics VAS6161 and or GRX3000 Vas Charger
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V2715032016076112022-04-06. Service bulletin. Discharged Battery, Diagnosis for excessive current draw.
TT 27 20 02_12021-01-08. Service bulletin. Battery Id for testing
V271902-20339782019-04-22. Service bulletin. Update to model year applicability. Generator Replacement Charging System inoperative/malfunctions, noise from engine compartment, accessory drive belt damaged or missing.
TT 58 18 012018-12-10. Service bulletin. Key Battery Diagnostic Process
TT 57 18 022018-12-03. Service bulletin. Remote Ket battery diagnostics. Updated to change incorrect repair manual group number (from TT581801 to TT571802)
TT 27 18 012018-12-03. Service bulletin. Update to model year applicability and Battery testing information.
TT 57-15-012017-11-08. Service bulletin. Tech Tips: Remote Battery Replacement Tip
V271502 20339782017-10-31. Service bulletin. Technical Bulletin: The document refers to diagnosing charging systems for issues