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Service bulletins for the 2012 Volkswagen Tiguan

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.

1003 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Fuel hoses and lines are shown. Show all

Bulletins, newest first
TT2013022023-07-10. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Be aware that fuel lines are color coded on vehicles with return fuel pressure lines. The black line is for fuel pressure supply and the blue line is for fuel pressure return. To verify correct line installation, remove the metal cover exposing the fuel pump flange assembly (generally under the rear seat). Refer to the ELSA Repair Manual for specific location. Check for raised arrows on the flange housing. The black line (Fuel Pressure Supply) attaches to the connection with the arrow pointing away from it. The blue line (fuel return) attaches to the connection with arrow pointing to it.
TT 21 18 012018-12-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. Incorrect removal of Turbocharger oil feed line may cause engine damage
V011412 20373572017-10-21. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; ELECTRICAL SYSTEM. Technical Bulletin (Slow Speed Stumble Possibly Following Starting/Restart issues): Customer may state the vehicle intermittently shudders and/or stumbles at slow speeds after short periods of parking following a drive cycle. This production solution to this issue was Improved ECM software for Make Year 2015 Tiguan, prior models require a software update. This document informs on the software versions nessary for various engine types for make years between 2010 and 2014

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.