Engine control and emission control system -> Diesel particulate filter for Your Volkswagen Beetle 4 Door Third Generation (2012-2019)

The catalytic converter provides exhaust gas after-treatment to help reduce pollutants in the exhaust  
gas. To help ensure long service life of the exhaust system and gasoline engine catalytic converter:  
Only use unleaded fuel.  
Never completely empty the fuel tank.  
Do not exceed the correct oil level..  
Do not tow the vehicle to start it, but use a jump-start instead..  
If you experience misfires, loss of power or the engine is not running smoothly while driving, reduce  
speed immediately and have the vehicle checked by an authorized Volkswagen dealer or authorized  
Volkswagen Service Facility. Otherwise, gasoline could reach the exhaust system and get into the  
atmosphere. The catalytic converter could also be damaged by overheating!  
Under certain engine conditions, you may smell a sulfur odor. This is not an indication of a  
malfunctioning emission control system. This depends upon the sulfur content of the diesel fuel.  
Diesel particulate filter  
Please first read and note the introductory information and heed the WARNINGS  
..  
The diesel particulate filter helps take soot particles out of the exhaust. The soot particles are collected  
and burned in the filter. Volkswagen recommends frequently driving longer distances to help clean the  
filter.  
Use only Ultra Low Sulphur Diesel (ULSD) fuel No. 2..  
Never refuel with gasoline or fuel oil or biodiesel that does not comply with the special  
requirements for diesel fuel., Diesel fuel.  
Do not exceed the correct oil level..  
Do not tow the vehicle to start, but use a jump-start instead..  
On vehicles with automatic transmissions, increase the engine speed slightly while driving to  
automatically start cleaning the diesel particulate filter. This helps to minimize clogging of the filter. The  
indicator light will not come on.  
Under certain engine conditions, you may smell a sulfur odor. This is not an indication of a  
malfunctioning emission control system. This depends upon the sulfur content of the diesel fuel.