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Service bulletins for the 2004 Volkswagen Passat

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.

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

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
Edition1152023-10-02. Service bulletin. STRUCTURE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ENGINE AND ENGINE COOLING. VW Elsa Newsletter
Guide2023-08-14. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). P0102, P1128, P1296 - WA front oxygen sensor faults
TT3214012023-07-05. Service bulletin. POWER TRAIN. Incorrect torque converter or flywheel/flexplate installation can result in transmission damage. When installing an engine, flywheel or transmission, please follow the installation procedures outlined in ELSA. For the flywheel/flexplate, please be certain the correct shim is installed between it and the crankshaft (reference VWIQ120). When installing a torque converter, press the torque converter hub through the seal as far as the first stop. Turn the torque converter while pushing toward the transmission using light force, until the cut outs in the torque converter hub lock into the pump wheel plate. The torque converter slides in. The torque converter is installed correctly if it is easy to turn by hand and if it fits evenly in the transmission bell housing. Additionally, it should spin freely when the transmission bell housing bolts are torqued to the engine block, prior to installation of the flywheel to converter bolts (reference VWIQ121).
Reference Guide2019-04-08. Service bulletin. POWER TRAIN. Transmission Control Module Updates: This document informs of the software, and technical bulletins that service corresponding cars and their Transmission Control Module complaint issues.
Reference Guide2019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM; POWER TRAIN. Transmission Control Module Updates: This document informs of the software, and technical bulletins that service corresponding cars and their Transmission Control Module complaint issues.
TT 32-14-012017-10-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Tech Tips (Torque Converter/Flywheel/Flexplate installation): Incorrect torque converter or flywheel/flexplate installation can result in transmission damage. When installing an engine, flywheel or transmission, please follow the installation procedures outlined in ELSA. This document also contains advice on the installation of these devices
TB-35-11-012011-09-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; STEERING:GEAR BOX (OTHER THAN RACK AND PINION). VOLKSWAGEN: THE GEAR BOX HAS A MOMENTARILY DELAY WHILE ACCELERATING. *RM
04162004-11-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). WHEN SLOWING TO A STOP, A HARSH 3RD GEAR TO 2ND GEAR DOWNSHIFT IS FELT AND/OR AFTER SLOWING TO A NEAR STOP THEN ACCELERATING AGAIN, A CLUNK IS FELT. UPDATE PROGRAMMING (FLASHING) TRANSMISSION CONTROL MODULE (TCM) FOR HARSH SHIFTING. *TT

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