Does the 2021 Tiguan L have a particulate filter?
1 Answers
The 2021 Tiguan L is equipped with a particulate filter to meet the China VI emission standards. A particulate filter is a ceramic filter installed in the diesel engine's exhaust system that captures particulate emissions before they enter the atmosphere. It can reduce soot emissions from diesel engines by over 90%, and the captured particulate matter is subsequently burned off during vehicle operation. Diesel engine pollution primarily comes from four sources—particulate matter, hydrocarbons (HCx), nitrogen oxides (NOx), and sulfur. Particulate matter (soot) mainly consists of tiny carbon or carbon compound particles (smaller than 4-20μm). How the particulate filter works: The diesel particulate filter is coated with metals such as platinum, rhodium, and palladium. The black smoke containing carbon particles emitted by the diesel engine enters the exhaust particulate filter through a dedicated pipe. The densely arranged bag-type filter inside captures the soot particles on a metal fiber felt filter. When the accumulated particulate matter reaches a certain level, the burner at the end automatically ignites, burning off the captured soot particles and converting them into harmless carbon dioxide. To check whether the 2021 Tiguan is equipped with a particulate filter, you can use the following three methods: 1. Refer to the Owner's Maintenance Manual and Owner's User Manual to see if the particulate filter function is mentioned. Additionally, carefully check the fault codes in the manual to see if there is a "Particulate Filter" warning light indicator. 2. Check the label on the oil cap. If it clearly states 0W-20 grade oil, it indicates the presence of a particulate filter. 3. Look behind the three-way catalytic converter on the exhaust pipe for a cylindrical section. If present, that is the particulate filter.
