Engine control and emission control system -> Catalytic converter for Your Volkswagen Jetta 4 Door Sixth Generation (2011-2018)

Lights  
up  
Possible cause  
Proper response  
Glow plug preheating before diesel  
engine start-up.  
Ease off the accelerator. Carefully drive to the  
nearest authorized Volkswagen dealer or  
authorized Volkswagen Service Facility. Have  
engine checked.  
Engine control/monitoring system  
malfunction (engine Malfunction Indicator  
Light - MIL)  
Drive about 15 minutes in 4th gear (manual  
transmission) or in Drive (D) (automatic  
transmission) and at a speed of about  
45 mph (70 km/h). There may be a noticeable  
smell.  
Diesel particulate filter clogged with soot.  
Obey speed limits ⇒ꢀ  
.
See an authorized Volkswagen dealer or  
authorized Volkswagen Service Facility if the  
indicator light is still on.  
Flashes  
Possible cause  
Proper response  
Have engine checked immediately by an  
authorized Volkswagen dealer or authorized  
Volkswagen Service Facility.  
Engine control malfunction (diesel  
engine).  
Ease off the accelerator. Carefully drive to the  
nearest authorized Volkswagen dealer or  
authorized Volkswagen Service Facility. Have  
engine checked.  
Misfire, which can damage the catalytic  
converter.  
When the ignition is switched on, several warning and indicator lights come on briefly for a function  
check. They go out after a few seconds.  
WARNING  
Obey all applicable legal requirements when cleaning the diesel particulate filter.  
Clean the diesel particulate filter as recommended only when visibility, weather, road, and  
traffic conditions permit.  
Do not put others at risk.  
NOTICE  
Failure to heed warning lights or text WARNINGS can result in vehicle damage.  
As long as the indicator lights , or ꢁꢂꢃ are on, expect engine malfunctions, increased fuel  
consumption, and loss of engine efficiency.  
Catalytic converter  
Please first read and note the introductory information and heed the WARNINGS  
307  
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, Engine oil.  
Do not tow the vehicle to start it, but use a jump-start instead, Jump-starting.  
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 periodically burned in the filter at high temperatures (regeneration). The resulting heat can cause  
the temperature inside the engine compartment to increase.  
Regeneration can create noises, slight smells, and, regardless of the outside temperature, cause the  
radiator fan to start – even after the engine has been turned off.  
Volkswagen recommends frequently driving longer distances to help clean the filter. On vehicles with  
automatic transmissions, the engine speed may also increase slightly. The indicator light ÷ will not  
come on.  
To lengthen the life of the exhaust system and the diesel particulate filter:  
Use only Ultra Low Sulfur Diesel (ULSD) fuel No. 2, Fuel.  
Never refuel with gasoline or fuel oil or biodiesel that does not comply with the special  
requirements for diesel fuel, Diesel fuel.  
Never drive until the fuel tank is completely empty.  
Do not exceed the correct oil level, Engine oil.  
Do not tow the vehicle to start, but use a jump-start instead, Jump-starting.  
WARNING  
Obey all applicable legal requirements when cleaning the diesel particulate filter.  
Clean the diesel particulate filter as recommended only when visibility, weather, road, and  
traffic conditions permit.  
Do not put others at risk.  
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.