I have a 2015 GSW TDI S Manual at 38K. I just scheduled my fix in mid-December (phase 1 & 2 at the same time, IIUC).
I'm confused about the following text:
"Phase 2 of the emissions modification will involve outfitting your car with new emission control parts to ensure system reliability and durability over time. We will install a second nitrogen oxides (NOx) sensor and corresponding software to improve the performance of the on-board diagnostic (OBD) system. In addition, the Phase 2 update will include installation of a new Diesel Particulate Filter, Diesel Oxidation Catalyst, and Selective Catalytic Reduction Converter. These components are needed to maintain emissions performance for the full useful life (150,000 miles) of your vehicle. If your vehicle has accumulated less than 40,000 miles (for automatic transmissions) or 70,000 miles (for manual transmissions) at the time of your Phase 2 update, your car may need to have the Diesel Oxidation Catalyst replaced a second time before it reaches 150,000 miles."
In particular, my questions are:
What is the difference between manual and automatic with regards to the Diesel Oxidation Catalyst? Why did they put a threshold at 40K and 70K respectively? It looks like during 110K miles (for auto) the Diesel Oxidation Catalyst is expected to have to be replaced since it's going to reach it's lifetime during that period. But for manual, this is 80K? In other words, if I have a manual and perform phase 2 fix at 69K, I'm expected to need to go through 2 Diesel Oxidation Catalysts during the remaining 81K. But what if I did my phase 2 much earlier (38K in my case)? Would I go through 3 catalysts?
Please un-confuse me
I'm confused about the following text:
"Phase 2 of the emissions modification will involve outfitting your car with new emission control parts to ensure system reliability and durability over time. We will install a second nitrogen oxides (NOx) sensor and corresponding software to improve the performance of the on-board diagnostic (OBD) system. In addition, the Phase 2 update will include installation of a new Diesel Particulate Filter, Diesel Oxidation Catalyst, and Selective Catalytic Reduction Converter. These components are needed to maintain emissions performance for the full useful life (150,000 miles) of your vehicle. If your vehicle has accumulated less than 40,000 miles (for automatic transmissions) or 70,000 miles (for manual transmissions) at the time of your Phase 2 update, your car may need to have the Diesel Oxidation Catalyst replaced a second time before it reaches 150,000 miles."
In particular, my questions are:
What is the difference between manual and automatic with regards to the Diesel Oxidation Catalyst? Why did they put a threshold at 40K and 70K respectively? It looks like during 110K miles (for auto) the Diesel Oxidation Catalyst is expected to have to be replaced since it's going to reach it's lifetime during that period. But for manual, this is 80K? In other words, if I have a manual and perform phase 2 fix at 69K, I'm expected to need to go through 2 Diesel Oxidation Catalysts during the remaining 81K. But what if I did my phase 2 much earlier (38K in my case)? Would I go through 3 catalysts?
Please un-confuse me