Does the Volvo S90 have a particulate filter?
1 Answers
The Volvo S90 is equipped with a particulate filter to meet the China VI emission standards. The particulate filter is a ceramic filter installed in the diesel engine's emission system, designed to capture particulate emissions before they enter the atmosphere. It can reduce soot produced by diesel engines by more than 90%, and the captured particulate emissions are subsequently burned off during vehicle operation. Diesel engine pollution mainly comes from four sources—particulate emissions, hydrocarbons (HCx), nitrogen oxides (NOx), and sulfur. Among these, particulate emissions (soot) are mostly composed of tiny particles of carbon or carbon compounds (smaller than 4-20μm in size). 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. Inside, a densely arranged bag-type filter captures the soot particles on a metal fiber felt filter. When the accumulation of particles reaches a certain level, the burner at the end automatically ignites, burning off the captured soot particles and converting them into harmless carbon dioxide, which is then expelled. To check whether the Volvo S90 has a particulate filter, you can use the following three methods: Refer to the and to see if the particulate filter function is mentioned. Check the label on the oil filler cap. If the oil cap clearly indicates the use of 0W-20 grade oil, it means the vehicle is equipped with a particulate filter. Look behind the catalytic converter on the exhaust pipe for a cylindrical section. If present, that is the particulate filter.
