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Service bulletin 0502

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 id10018803
Published by NHTSA2006-01-18
Manufacturer's number0502
Manufacturer's date2005-12-19
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

CUSTOMER STATES HEATER OUTPUT SEEMS INSUFFICIENT. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Cooling system

Vehicles listed
VOLKSWAGEN GOLF2004, 2005
VOLKSWAGEN JETTA2004, 2005

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
TT 87-09-032019-04-08. Service bulletin. Tech Tips (Coolant fan control module J293 pinout): 1.8L and 2.0L (Except Engine Code BBW), Fan Module J293 Pinout Chart which informs of the terminal types, the inputs, and outputs, the signal purpose, and the signal type
TB-19-13-012013-05-07. Service bulletin. VOLKSWAGEN: IT IS A NORMAL OCCURRENCE FOR THE ELECTRIC COOLANT FANS TO CONTINUE TO RUN AFTER THE IGNITION IS SWITCHED OFF. *JS
0107022007-04-03. Service bulletin. DTC'S P1297 (17705) OR P1557 (17965) STORED IN DTC MEMORY. THIS MAY BE CAUSED BY INTAKE HOSES LEAKING (DURING BOOST CONDITIONS) DUE TO INCORRECT TORQUE ON CLAMPS OR IMPROPER PLACEMENT, WORN OR TORN INTAKE HOSES. *KB