Mercedes S500 Catalytic Converter
Four Common Signs behind Mercedes S500 Catalytic Converter Problems
If your vehicle has already reached 100,000 miles, then this can be the first sign that your catalytic converter will begin to slowly wear down. Although there can be other signs of catalytic converter malfunction, that mileage level can already indicate the start of some catalytic converter issues. Aside from this, here are other symptoms you should look for to determine if you already have a problematic Mercedes S500 catalytic converter:
Decrease in the engine's power
There are different reasons why your car's engine can suddenly lose a significant amount of power, and one of these is a worn-out catalytic converter. A catalytic converter in poor condition causes a buildup of soot and restricts the flow of the exhaust gases. This restriction causes the decrease in the engine power and poor performance.
Leak in the exhaust system
A well-maintained catalytic converter burns excess fuel from the combustion chamber efficiently by using extreme heat and a chemical reaction. A clogged, malfunctioning converter, on the other hand, builds backpressure and sends the exhaust gases back into the exhaust manifold gasket or header joints. To see if the catalytic converter is burning fuel efficiently, the casing of the converter should discolor similar to a multi-colored rainbow pattern under high temperature.
Failure of the oxygen sensor
The oxygen sensor is a part of your car's emission control system. It transmits data to the engine management computer. If the catalytic converter is malfunctioning, then it will cause the oxygen sensor to send inaccurate readings of the oxygen amount in the exhaust system. This problem will lead to poor engine performance and low fuel economy because the computer won't be able to determine the correct air-to-fuel ratio.
Emission of a thick, black smoke and foul smell
When you can already see black smoke coming from your car's tail pipe or smell a foul odor similar to rotten eggs, then these signs already indicate a catalytic converter problem. This may be caused by a poorly conditioned converter that failed to burn the rich, fuel mixture from the engine. Aside from the tail pipe, the converter itself can be the source of the foul smell and black smoke. Its housing should be checked for holes or cracks as well.