Here was the language of the Gen 1 warranty extension after the fix is completed:
Warranty Extension for Certain Emissions-Related Components
Once the updated emissions control system software has been installed in your vehicle, Volkswagen will extend your Emissions Control Systems Warranty for certain emissions-related components. The warranty period for the “Extended Emissions Warranty”is the greater of:
• 10 years and 6 months or 126,000 miles, whichever occurs first, from the vehicle’s original in-service date; OR
• 4 years and 6 months or 54,000 miles, whichever occurs first, from the date and mileage of the emissions modification.
The vehicle's original in-service date is defined as the date the vehicle was delivered to either the original purchaser or the original lessee; or if the vehicle was first placed in service as a "demonstrator" or "company"car, on the date such vehicle was first placed in service.
The emissions control system warranty covers all components which are replaced as part of the emissions modification and any component which can reasonably be impacted by effects of the emissions modification.
The emissions system warranty shall cover the following parts or systems:
• The entire exhaust gas after treatment system, including the Diesel Oxidation Catalytic Convertor (DOC), the NOx Reduction Catalytic Converter, the Diesel Particulate Filter (DPF), the exhaust flap, and all sensors and actuators;
• The entire fuel system, including fuel pumps, high pressure fuel rail, fuel injectors, vibration damper, pressure control valve and all sensors and actuators;
• The EGR system, including EGR valves, EGR cooler, EGR filter, EGR temperature sensor, all related hoses and pipes, and all sensors and actuators;
• The air intake pipe and charge air cooler, charge air temperature sensor and air-mass sensor (HFM);
• The turbocharger, including the turbocharger damper;
• The glow plug;
• The On-Board Diagnostic (OBD) system, any malfunctions detected by the On-Board Diagnostic (OBD) system other than those related to the transmission.
Additionally, the engine long block warranty shall cover the engine sub-assembly that consists of the assembled block, crankshaft, cylinder head, camshaft, and valve train.
In our continuing efforts to assure proper performance of Volkswagen vehicles, your dealer will diagnose and replace the emissions-related components listed in this section, if necessary, at no cost to you as long as the vehicle remains within the time and mileage limits of this warranty extension. Please keep this letter with your warranty booklet and deliver it to any new owner, along with the owner’s manual.
This warranty extension covers only the diagnosis and replacement of the emissions-related components listed in this section. If the warranty service is expected to take longer than three hours, VW must provide a loaner vehicle. Should you ever sell the vehicle, this warranty extension is fully transferable to subsequent owners.
This warranty extension will not cover:
• Any damage or malfunctions caused by installation of non-EPA or non-CARB certified emissions related parts, including such damage or malfunction to parts needed for proper diagnosis of a covered part.
• Damage or malfunctions caused by outside influence, such as damage due to an accident, or vehicle misuse or neglect.
All normal warranty provisions remain in effect. The extended emissions warranty includes parts, labor, and applicable taxes. The extended emissions warranty shall not void or supersede any existing warranty. Conflicts concerning the warranty are to be resolved in favor of the consumer. If the vehicle has been modified by the customer prior to receiving the emissions modification in a manner that may yield a non-compliant emissions system (for example, removal of a catalyst, installation of parts that impact emissions or emissions-related parts, or modifications to the ECU or computer software of the vehicle), Volkswagen may not be able to perform the emissions modification until the customer corrects such modification.
More information about your extended emissions warranty coverage is available at www.vwdiesellookup.com.