Is the particulate filter of the Tayron 1.4T prone to clogging?
2 Answers
The particulate filter of the Tayron 1.4T is prone to clogging. A particulate filter is a ceramic filter installed in the exhaust system of diesel engines, which captures particulate emissions before they enter the atmosphere. Function of the particulate filter: The particulate filter can reduce the soot produced by diesel engines by more than 90%, and the captured particulate emissions are subsequently burned off during vehicle operation. The methods for handling clogged particulate filters differ between diesel and gasoline vehicles, as follows: For diesel vehicles, simply press the regeneration button in the car. The engine will then increase its RPM while stationary, and generally, the particulate filter will be cleaned in about ten minutes, resolving the clogging issue. For gasoline vehicles, the owner should first shift the car into S gear and then drive at high speed for a period of time. When the car is driven at high speed, the temperature of the exhaust pipe will rise, and the clogged particles in the particulate filter will be burned off, solving the clogging problem once the burning is complete. If the particulate filter is severely clogged and the above two methods do not resolve the issue, the particulate filter can be sent to an auto repair shop or 4S store for professional cleaning with specialized equipment.
As a frequent commuter driving the Tiguan 1.4T, I deeply relate to this issue. The particulate filter does tend to clog easily, especially during short winter drives. This is related to the 1.4T engine's low-power tuning: a small displacement pulling a large vehicle causes the ECU to enrich fuel injection for power, resulting in lower exhaust temperatures and incomplete soot combustion. My colleague who often drives on highways rarely gets warnings, whereas my daily 10-km round-trip commute triggered a fault light within two months. The dealership advised occasionally using S mode to increase RPMs, or if severely clogged, a 30-minute highway drive to reach 550°C for active regeneration. Now I’ve made it a habit to loop around the city expressway before each refuel.
