Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
In order to reduce nitrous oxides, the Volkswagen Touareg TDI uses a urea injection process in addition to particulate filters. Urea is a chemical compound that, when used in an exhaust system, creates ammonia and reduces NOx – up to 95 percent when it comes to the Touareg TDI. Learn more about the Touareg TDI.
