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Service bulletins for the 2012 Volkswagen Jetta

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.

1483 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
V241505 20381612017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. Technical Bulletin (Intake manifold runner position sensor issues): This document informs what repairs are needed to fix the issue. This document contains the fault codes necessary to check the warranty coverage for servicing this issue.
V261507 20315832017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. Technical Bulletin (Exhaust Pressure Control Valve / Exhaust Gas Recirculation Flow issues): This document contains the fault codes needed to diagnose, and service the issue. The document contains the fault codes necessary to check warranty coverage for servicing the issue
V871506 20199472017-11-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING. Technical Bulletin (Air Conditioning, Cleaning of the Refrigerant Circuit (U.S.Only)): In cases where an air conditioning system component (such as a compressor or other system component) has failed and debris from the compressor or component is circulated throughout the refrigerant circuit, the refrigerant circuit must be cleaned of any and all debris or damage to the replacement components will result. This document contains information on how to diagnose, and service this issue.
V871508 20055662017-11-08. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Technical Bulletin (HVAC, Unpleasant Odor): Unpleasant odor is coming from Heating and Ventilation system. Odor mainly occurs after vehicle has been sitting (unused) at least 5 hours and within 20 to 60 seconds after vehicle is first started. This document contains information on how to diagnose, and service this issue.
TT 23-15-012017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, GASOLINE. Tech Tips (Exhaust Gas Recirculation System Performance issues): After replacing the mass air flow sensor basic setting must be reset. This document informs of the procedure necessary to perform the reset
TT 21-10-022017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; POWER TRAIN. Tech Tips: The document discusses the conditions of when turbo can to be fixed or replaced
TT 19-13-022017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. Tech Tips (Coolant Leak or Repeat Coolant Leak from the Water Pump Area): The document informs to inspect for issues, and why issues may happen. It also notes how to fix the issue, and other issues that could happen while repairing the issue
TT 19-12-012017-11-08. Service bulletin. ENGINE. Tech Tips (Radiator Identification Sensor): On TSI (2.0l CCTA, CBFA) equipped vehicles with fault code P2568 Direct Ozone Reduction Catalyst Temperature Sensor, this fault refers to - G611- as Radiator Identification Sensor. If the radiator requires replacement on any above listed vehicle, the -G611- will be packaged separately within the radiator packaging. The new sensor will need to be bonded to the radiator.
V211504 20267712017-11-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE; FUEL SYSTEM, DIESEL. Technical Bulletin:Engine Lacks Performance, and Engine Warning Light ON issues. The document contains fault codes for trouble shooting issues, and procedures for those issues
V201502 20314262017-11-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE. Technical Bulletin (High Pressure Fuel Pump Diagnosis): Completing the GFF high pressure pump function test is essential to diagnose proper pump operation and to avoid unnecessary replacements
V001413 20338462017-11-08. Service bulletin. ENGINE. Technical Bulletin (Fuel Additive to Help Prevent Sporadic Misfire Faults): Fuel quality impacts the operating performance, efficiency and service life of the engine. The use of poor quality fuels may result in deposit build up on the fuel injectors and intake valves. This may result in a rough running condition, sporadic misfires, or cold start misfire faults storing in the ECM fault memory. This document informs a Volkswagen approved fuel additive is available to help remove and prevent deposits on fuel injectors and intake valves.
V011423 20340122017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. Technical Bulletin (Manifold Absolute Pressure Range / Performance issues): This document informs that the monitoring strategy for the manifold absolute pressure sensor being too sensitive, causing P0106 to incorrectly set in the engine control module. The product solution for this issue was improved software.
V281401 20321162017-11-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Technical Bulletin (Incorrect Glow Plug Faults): During the initial glow phase, after switching the ignition ?On?, the ECM performs a check of the glow plugs through the glow plug control module, to ensure the correct glow plugs are installed. If the engine is cranked during this check, lowering the system voltage, the ECM may receive an incorrect reading and set incorrect glow plug faults. 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.
V011401 20286092017-11-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Technical Bulletin (Update Programming for Engine Control Module and Transmission Control Module, for Shudder and/or Slight Hesitation Concerns): The current ECM/TCM programming could be causing slight hesitation related concerns in DSG equipped vehicles. The updated software of the product solution Improved ECM/TCM software to address drivability concerns and slight hesitation complaints. 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.
V001401 20338462017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. Technical Bulletin (Fuel Additive to Help Prevent Sporadic Misfire Faults): Fuel quality impacts the operating performance, efficiency and service life of the engine. The use of poor quality fuels may result in deposit build up on the fuel injectors and intake valves. This may result in a rough running condition, sporadic misfires, or cold start misfire faults storing in the ECM fault memory. A Volkswagen approved fuel additive is available to help remove and prevent deposits on fuel injectors and intake valves. 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.
V921503 20373222017-11-08. Service bulletin. ENGINE. Technical Bulletin (Washer Level Sensor issues): The sensitivity of the washer solvent level sensor (G33) can be affected by the type, concentration, and the presence of additives in the washer solvent currently in the tank. The operation of the level sensor relies on the composition of the solvent to provide an accurate message on the solvent level. Incorrect concentration and the presence of additives can contaminate the sensor and reduce its sensitivity. This document discusses the diagnosis, and potential remedy of the issue.
Revised_Oil_Capa2017-11-03. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. Job Aid ? VW Engine Oil Capacities (Gasoline, Diesel, Hybrid Engines)
V011422 20354642017-10-31. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Technical Bulletin (Cylinder Contribution/Balance Faults): This document informs that the diagnostic strategy for zero fuel calibration too sensitive. The production solution for this issue was new Software implemented. 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.
V151403 20321732017-10-31. Service bulletin. ENGINE. Technical Bulletin (Camshaft Adjustment Valve 1 -N205- Diagnosis): Completing the GFF function test and performing basic settings on the camshaft adjustment valve are essential to diagnose proper operation and to avoid unnecessary replacements. The production solution to this issue was to optimized engine cleaning procedure in production.
V191401 20225492017-10-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Technical Bulletin (Electric Coolant Fans Continue to Run after Ignition is Switched OFF): This documentation informs it is considered normal operation for the electric coolant fans to continue to run for up to 15 minutes after the ignition is switched off in gasoline engine applications, and up to 16 minutes in diesel engine applications. The production solution to service this issue is that no production change is required.
TT 19-13-022017-10-31. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; ENGINE AND ENGINE COOLING:COOLING SYSTEM. Tech Tips (2.0L CCTA/CBFA Coolant Leak or Repeat Coolant Leak from the Water Pump Area): Inspect the water pump for signs of contact with engine oil. Engine oil may cause the water pump gasket to swell, which may lead to a coolant leak. This document informs of the precaustions necessary if a water pump replacement is necessary.
TT 23-10-022017-10-31. Service bulletin. ENGINE. Tech Tips (Common Rail TDI ? Fuel Filter Replacement and Prime/Bleed Procedure): This document informs when replacing fuel system components on the Common Rail TDI engine (including the fuel filter), the fuel system must be primed. The procedure should be available on most models through Guided Functions. If not shown, then access through Control Module OBD. Run ?Basic Settings block 35? three times in a row. This activates the electric fuel pumps and bleeds the fuel system. Once the system has been bled, it will be necessary to start the engine and idle for a minimum of 5 minutes before depressing the gas pedal.
V011505 20293732017-10-31. Service bulletin. ENGINE. Technical Bulletin: This software update is designed to re-program the ECM (Engine Control Module) with new software. This software update is for slight hesitation related concerns on 2012 model year vehicles
V211501 20267712017-10-31. Service bulletin. ENGINE. Technical Bulletin: Discussion on engine issues lacking performance. The document covers diagnosis of the engine and the codes that are meant to describe the issues. How to service the issue is discussed, and where to find warranty information to pay for the service
TT 27-13-012017-10-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. Tech Tips: Generator Charging Concern Diagnosis Tip - One Way Clutch Pulley Testing

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