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Service bulletins for the 2012 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.

1572 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
On car analysis-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. On-car analysis list of Customer Complaints: Mil?on with fault code P046C, untouched vehicles
On car analysis-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. On-car analysis list of Customer Complaints: Mil?on with fault code P046C, untouched vehicles
Dealer Letter -2017-10-21. Service bulletin. FUEL SYSTEM, DIESEL. Upcoming Communication to Owners of 2009-2015 MY Volkswagen TDI Clean Diesel Engine Vehicles Registered in the State of Minnesota Engine Codes CBEA, CJAA, CKRA, CATA, CNRB Using Biodiesel Fuel Blends: This document informs that Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in the State of Minnesota. Because Volkswagen supports the development and use of renewable fuels (such as biodiesel fuel blends), customers with 2009-2015 MY Volkswagen TDI® Clean Diesel Engine vehicles registered in the State of Minnesota only will receive a communication in July 2014 regarding the use of biodiesel fuel blends in their vehicles. Volkswagen will continue to honor the terms and conditions of Volkswagen Limited Warranties that came with these vehicles.
Customer Letter2017-10-21. Service bulletin. FUEL SYSTEM, DIESEL. 2009-2015 Model Year Volkswagen TDI® Clean Diesel Vehicles Registered in Minnesota Engine Codes CBEA, CJAA, CKRA, CATA, CNRB Using Biodiesel Blend Fuels: Biodiesel is a domestically produced, clean-burning and renewable partial substitute for conventional (petroleum) diesel fuel. The customers vehicle was originally designed to run on ?ULSD? - Ultra Low Sulfur Diesel No. 2 ? fuel that complies with ASTM D-975 specifications and permits up to a maximum blend of 5% biodiesel (B5). Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in Minnesota. However, we want to assure you that Volkswagen will continue to honor the terms and conditions of the Volkswagen Limited Warranties that came with your vehicle.
VWP-14-042017-10-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Warranty Information (Turbocharger Limited Warranty Extension): Volkswagen has extended the Emissions Control Systems Warranty for the turbocharger under specific conditions to 10 years or 120,000 miles, whichever occurs first, from the vehicle?s original in-service date, for certain 2012 ? 2013 Model Year Volkswagen Passat TDI Clean Diesel Engine vehicles. Volkswagen has determined that, under specific conditions, the turbocharger could malfunction and may cause the Malfunction Indicator Lamp (MIL) on the instrument cluster to illuminate due to the presence of specific fault codes caused by this component. Additionally, you may hear noise coming from the turbocharger.
V011415 20269442017-10-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. Technical Bulletin (Update Programming issue due to Harsh Gear Engagement from Park to Drive or Reverse): The updated programming for the TCM modifies clutch operation to decrease pressure to the C1, which may cause harsh transmission engagement. The production solution for this issue was a Transmission Control Module (TCM) software update. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
V211405 20361102017-10-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Technical Bulletin (Engine Lacks Performance, Shaft of Turbine Fan of Turbo Charger Broken or Seized): In the case of a damaged turbocharger it is important to follow the steps contained in this document to avoid repeat repairs. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
V281403 20373862017-10-21. Service bulletin. ELECTRICAL SYSTEM. Technical Bulletin (Glow Plug Pressure Sensor Faults): When diagnosing MIL ON with glow plug pressure sensor DTC?s it important to perform diagnosis prior to replacing the glow plug. This document informs on the procedure to service this issue. This document discusses the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
V301402 20313662017-10-21. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. Technical Bulletin (Slave Cylinder - Clutch Pedal Operation Diagnosis): Customer may comment: ? Complaints on clutch system. ? After pressing the clutch pedal, it remains on the floor. Due to mis-diagnosis of clutch systems, and to prevent incorrect parts replacement, diagnostic procedure implemented into guided fault finding (GFF). This document is for identifying the issue for diagnosis.
V011413 20357582017-10-21. Service bulletin. ENGINE. Technical Bulletin (Knock Sensor Fault): This document informs of imperfections in the engine wiring harness. The product solution for this issue was Improvements made to engine harness. It also contains graphics for the updated harness routing, the "Fault Codes" necessary to diagnosis, and potential remedy of the issue. The fault codes for checking warranty coverage for servicing the vehicle are also available.
V001406 20157802017-10-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Technical Bulletin (PDI - Vehicle Inspection, Protection Removal and Detailing): This document informs on the service a vehicle shouold received when it has successfully reached a dealership. ? Inspecting vehicle for damage (to be completed within 48 hours of delivery to Dealership) ? Shipping damage ? Detailers responsibilities (to be completed prior to delivery to Customer) ? Full Body Covers (FBC), removal and disposal ? RAPGARD, removal and disposal ? Paint finish, inspecting for swirl marks ? Exterior glass, cleaning ? Interior, cleaning ? New vehicle detailing products
TT 70-14-012017-10-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Tech Tips (Headliner Removal Installation): The removal and installation of the headliner on the Passat can be time consuming and difficult in some areas. Properly installing the headliner, seals and pillar trims will alleviate many issues that would normally be attributed to a headliner cut to short. All steps should be followed from ELSA. Every piece of trim the repair manual has you remove is very important to create the clearance needed to remove the headliner from the vehicle and get the new headliner into the vehicle. This document informs of the steps of the headliner removed/reinstalled without being bent through the front passenger door with glove box removed and both front seats reclined flat.
TT 44-14-022017-10-21. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. Tech Tips (ABS/TPMS light is on due to wheel speed sensor fault as a result of the Front Wheel Bearing / Wheel Speed Sensor swapping issue): This document informs of the Damage caused from swapping the speed sensors left to right (or vice versa) during diagnosis.
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
TT 23-14-012017-10-21. Service bulletin. FUEL SYSTEM, GASOLINE. Tech Tips (2009-2014 All TDI (2.0L, 3.0L) Common Rail models Passat, Golf, Jetta, Jetta SportWagen, Touareg Adapting Injector Quantity adjustment correction values (IMA/IVA)): This document informs When replacing or adapting fuel injectors, if there is no Guided Functions Test Plan, utilize the procedure provided in the document
TT 20-13-022017-10-21. Service bulletin. FUEL SYSTEM, GASOLINE. Tech Tips (Fuel line connections): 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.
V941403 20115212017-10-21. Service bulletin. EQUIPMENT; EXTERIOR LIGHTING. Technical Bulletin (Exterior Lights, Moisture Accumulation): This document informs of the Condensation and or water droplets visible on inside of exterior light lenses. The document also informs how to service the issue.
V401403 20283532017-10-21. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ELECTRICAL SYSTEM. Technical Bulletin (Front Suspension Creaking Noise): Front suspension creaking noise during suspension cycles (going over speed bumps or entering on an inclined surface). The Coil Spring is not formed correctly and rubs against the perch of the strut. The production solution for this issue was Improved parts installed in production since CW 18/14. This document informs on how to diagnoise the issue as well.
TT 90-13-022017-10-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Tech Tips: This document informs on how to Reset the Inspection Service, and Interval Service.
TT 50-14-012017-10-21. Service bulletin. WHEELS; TIRES. Tech Tips (All vehicles-Tire dressing for vehicle detailing): The use of tire dressing gives your tires that shiny finish that completes the image of a clean (new) vehicle. This document informs that The use of non-water based products will increase the risk of causing damage to painted surfaces. The document also gives graphical examples of the dame that can occur if non-water based products are used.
TT 44-13-042017-10-21. Service bulletin. STEERING. Tech Tips (Steering Wheel Off Center): This Tech Tip was established to explain the influence the adjustable steering column tilt position has on the steering wheel being off center and to provide information on checking for steering wheel off center.
TT 00-14-022017-10-21. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. Tech Tips (Adapting Injector Quantity adjustment correction values (IMA/IVA)): When replacing or adapting fuel injectors, if there is no Guided Functions Test Plan, utilize this documents procedure
V271701_20339782017-10-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Update existing technical bulletin to include model year 2017 applicability.
V231704_20410572017-10-21. Service bulletin. FUEL SYSTEM, DIESEL. Update fuel sampling requirement.
V001706_20337082017-10-21. Service bulletin. EQUIPMENT; STRUCTURE. Update TB to include model year 2016 & 2017 applicability

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