Cars with a gasoline engine
1 - Exhaust gas catalytic converter
The exhaust gas catalytic converter is part of the emission control systems. Its task is to remove part of the combustion products from the exhaust gases. In appearance, it resembles a silencer and is installed under the car in the exhaust system.
Diesel vehicles
HYUNDAI vehicles are equipped with oxidizing type exhaust gas catalytic converters to reduce the concentration of CH, CO and NOx in the exhaust gases.
About the Catalytic Converter
Exhaust gases passing through the catalytic converter heat it up strongly. As a result, the ingress of a large amount of unburned fuel can lead to its ignition.
This can be avoided by observing the following rules:
- Use only unleaded gasoline.
- Keep the engine in good technical condition. Excessively high temperature of the catalytic converter may cause the electrical system to malfunction; ignition or fuel injection.
- If your engine stalls, makes noise, knocks, or is difficult to start, take your vehicle to an authorized Hyundai dealer immediately on the day the problem is rectified.
- Do not drive the vehicle with very low fuel levels. If the fuel is completely used up, it can cause misfiring and overload the catalytic converter.
- Do not let the engine idle for more than 10 minutes.
- Do not start the engine of your HYUNDAI by towing. This may damage the catalytic converter.
- Do not touch the catalytic converter or other parts of the exhaust system while the engine is running, as they become very hot and could burn you. Stop the engine and wait at least one hour before touching the catalytic converter or other parts of the exhaust system.
- Regularly undergo maintenance at a service station of an authorized Hyundai dealer.
- Avoid parking in places where hot parts of the exhaust system may come into contact with flammable materials or objects, such as dry fallen leaves or grass. This may cause a fire.
Exhaust gas recirculation system (EGR)
This system helps to reduce nitrogen oxide emissions by directing part of the exhaust gases back into the combustion chamber to lower the temperature inside the combustion chamber.