In February I contacted Rip Off Britain regarding the emissions fix, and the treatment owners were getting after experiencing post fix "problems" such as EGR, DPF failure, increased regeneration loss of low down torque, increased fuel consumption.
I have recently spoken to one of their producers and they are planning to take up the topic. I have copies of all five letters sent to owners, the post fix certificate, the VW US offer. What is needed is factual content from owners who have had the fix applied, I know of two owners who had the fix applied without their permission, and others who innocently said yes and suffered. In balance there are also owners who have had the fix without problems.
The fix appears to alter the injector pattern lowering the combustion temperature. This reduces the low end torque, uses slightly more fuel, and produces more soot. This soot puts more strain on the EGR and DPF and causes more regenerations by the DPF so an increased tick over and fans running on after turning off the engine may be noticed. With a low mileage or fairly new vehicle there may not be an immediate problem but the EGR and DPF have a finite "life" and the fix appears to reduce this, so even if you have had the fix carried out and currently notice no change, it could prove otherwise later on, either before or after you sell the vehicle on.
If you have had the fix carried out and would not object to either adding your experience to the overall "statistics" or being contacted by R.O.B. could you please respond to this thread. As this material is likely to be used by a factual TV programme can you please stick to factual details rather than hypothetical, I have no financial interest in the outcome of the programme.