What is the Volkswagen Tiguan L Particulate Filter?

2 Answers
Sean
07/25/25 10:42am
Volkswagen Tiguan L particulate filter is a ceramic filter installed in the diesel engine emission system, which can capture particulate emissions before they enter the atmosphere. Functions of the particulate filter: The particulate filter can reduce soot produced by diesel engines by more than 90%, and the captured particulate emissions are subsequently burned off during vehicle operation. To check whether a vehicle is equipped with a particulate filter, you can use the following three methods: Check the and to see if there is a particulate filter function. Additionally, you can carefully check the fault codes in the manual to see if there is a "Particulate Filter" warning light indicator. Check the label on the oil filler cap. If the oil cap clearly states 0W-20 grade oil, it indicates that a particulate filter is installed. Check whether there is a cylindrical section behind the three-way catalytic converter on the exhaust pipe. If there is, that is the particulate filter.
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ArcherAnn
08/11/25 7:48pm
The particulate filter in the Tiguan L is essentially a filter installed in the exhaust pipe, specifically designed to trap fine carbon particles from the exhaust. Nowadays, gasoline vehicles, just like diesel ones, are required to have this installed; otherwise, they wouldn’t meet the China VI emission standards. During my last maintenance, the technician mentioned that this component needs regular cleaning. If it gets clogged, the car becomes sluggish, and pressing the accelerator feels like stepping on cotton. This is especially true for frequent short trips in the city, where the exhaust temperature isn’t high enough to burn off the carbon deposits, leading to easy clogging. My neighbor’s Tiguan had to visit the 4S dealership last month for this exact issue—they had to perform a forced high-temperature regeneration using a computer to fix it.
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