Separate from the issue relating to the falsified emissions test results that are affecting up to 11 million Volkswagen vehicles is a problem that has been reported by many Volkswagen Passat TDI owners.  The key to the emission-system on late model Volkswagen turbodiesel engines is liquid emissions-treatment system that uses a separate tank of urea-based diesel emissions fluid (DEF) which Volkswagen calls Adblue.  The Adblue solution is in a separate tank, and that fluid tank is heated for use during cold weather. Therein lies the problem, There have been reports of the heater element failing outside of the standard 36 month warranty but well within the 100,000 mile emissions warranty.  Volkswagen is refusing to repair these vehicles under the emissions warranty. Owners are being quoted from $900 to $3,000 plus for the repair of what we believe should be covered by the emissions warranty.  We have our first client on this issue and are evaluating the matter for potential class action treatment.  If you have a Volkswagen with premature Adblue heater failure, please contact our office.  If we pursue this as a group case, it will likely be with the participation of other consumer attorneys from different parts of the country.