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Service bulletin TT 23-06-28

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 id10120274
Published by NHTSA2017-10-21
Manufacturer's numberTT 23-06-28
Manufacturer's date2014-09-12
NHTSA componentFUEL SYSTEM, DIESEL

NHTSA's summary

2.0L TDI Pumpe Duse Engine, with Hard Starting: For long crank/ difficulty starting with the engine hot: Before replacing any components for this complaint, drain the fuel from the vehicle and replace with known good diesel fuel from a reputable source. If the complaint still exists, check fuel pressure and injector timing.

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

Vehicles listed
VOLKSWAGEN PASSAT2004

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

Recalls for the same vehicles and component
20081192008-04-09. Fuel System
08V1560002008-04-07. FUEL SYSTEM, GASOLINE:DELIVERY
04V5860002004-12-15. FUEL SYSTEM, DIESEL
20044352004-12-13. Fuel System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
Edition262023-09-18. Service bulletin. VW Elsa Newsletter
TB0014032023-08-28. Service bulletin. Fuel Additive to Help Prevent Sporadic Misfire Faults
TT201301a2023-07-10. Service bulletin. To clear static ECM fault P1250 ?Fuel Level Too Low?, add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.
TT2013012023-07-10. Service bulletin. To clear static ECM fault P1250 ?Fuel Level Too Low?, add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.
TT2009062023-07-10. Service bulletin. Use the diagram below to test the N75 Solenoid Valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to Mechanical Injection Style Diesel Engines, Pumpe Duse Style Diesel Engines and the new Common Rail Style Diesel Engines.
TT2408012023-07-05. Service bulletin. Fault code P1297 may be set and fuel mixtures may go lean if the vehicle is driven under load or revved up and then returned to idle.
TT 90-12-062019-04-08. Service bulletin. Tech Tips (Fuel Gauge Inoperative after Instrument Cluster Replacement with Fault 00771 ?Fuel level sensor -G-?): An inoperative fuel gauge after instrument cluster replacement with fault 00771 ?Fuel level sensor -G-? may be caused by gateway (address word 19) coding. This document informs of the procedure to resolve this concern
TT 90-12-062019-04-01. Service bulletin. Tech Tips (Fuel Gauge Inoperative after Instrument Cluster Replacement with Fault 00771 ?Fuel level sensor -G-?): An inoperative fuel gauge after instrument cluster replacement with fault 00771 ?Fuel level sensor -G-? may be caused by gateway (address word 19) coding. This document informs of the procedure to resolve this concern
TT 20-09-062017-12-05. Service bulletin. Tech Tips (TDI Engine - N75 Solenoid Valve Diagnosis): This document informs with graphical aid the testing of the N75 Solenoid Valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to Mechanical Injection Style Diesel Engines, Pumpe Duse Style Diesel Engines and the new Common Rail Style Diesel Engines.
TT 20-13-012017-10-31. Service bulletin. Tech Tips (ECM Fault P1250 "Fuel Level Too Low" Will Not Clear): This document informs to clear static ECM fault P1250 "Fuel Level Too Low", add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.