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Service bulletins for the 2015 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.

1134 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
TT3714012023-07-05. Service bulletin. ELECTRICAL SYSTEM. For communication faults set in various modules indicating loss of, or no communication with the mechatronic, please inspect the barrel connector lock for proper installation. If you find that the connector was not properly secured, inspect the terminals for damage. If no damage is found, reconnect the barrel connector and clear the 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).
TT2614022023-07-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Disconnect both O2 sensors (front and rear), start engine and let idle. Check MVB's 41/4 and 136/4 and verify have both changed from a 1 to a 0 (you may have to drive the car 4 miles to get them to reset to 0). Also a key cycle may be required for values to reset. This forces the ECM to re-learn the O2 sensor adaptation. Once MVB 41/4 and 136/4 read 0, re-connect the O2 sensors, road test and recheck for faults.
TB4614062023-06-26. Service bulletin. SERVICE BRAKES. Brake Disc Pulsation or Vibration (U.S. Only)
TB4614052023-06-26. Service bulletin. SERVICE BRAKES. Vibration or noise when braking may be due to brake disc corrosion protection which has not been completely removed by normal braking or surface rust built up during transportation.
TB4014062023-06-26. Service bulletin. SUSPENSION. Front suspension creaking noise during suspension cycles (going over speed bumps or entering on an inclined surface).
TT9214052023-06-13. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER; VISIBILITY. When replacing the washer bottle, Do Not separate the filler neck assembly from the tank unit during removal. Please leave all parts together for possible part return and review.
V1719012012855622023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Volkswagen Engine oil quality standards, update to attachments.
V1917012022548102023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Introduce new engine coolant compatible with all models and all model years.
TT 27 20 02_32023-06-06. Service bulletin. EQUIPMENT:OTHER:LABELS; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery adaptation procedure when battery label is missing.
VWM14072023-05-22. Service bulletin. FUEL SYSTEM, DIESEL. This communication contains important information and SAGA claim entry requirements for interim AdBlue refills under the Carefree Maintenance and VW Care Maintenance plans for Model Year 2015 and newer VW models with Diesel Engines.
VWM14032023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, DIESEL. Volkswagen Carefree Maintenance Program ? Diesel Engines Model Year 2015 and Newer
VWM14022023-05-22. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Volkswagen Carefree Maintenance Program ? Gasoline Engines Model Year 2015 and Newer
ServiceInfoCali2023-05-22. Service bulletin. TIRES. Tire Chain Information
UpdateGuide2023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Quick reference update guide.
Edition1722023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa Newsletter
Edition1712023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa Newsletter
Edition1742023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Elsa Newsletter
Edition1732023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Fuel Additive to Help Prevent Sporadic Misfire Faults
OCA62023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list please contact VW Helpline before attempting repair
OCA2023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list please contact VW Helpline before attempting repair
OCA52023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list.
OCA42023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list.
OCA32023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list.
OCA72023-05-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. On-car analysis list.

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