E 320 4MATIC Wagon (210.282) V6-3.2L (112.941) (1998)
temperature after a cold start:
- Ignition system
- Idle speed control [ISC]
- Transmission shift delay
- Secondary air injection
- Insulation of exhaust manifold and front exhaust pipes.
Ideal operating conditions for high conversion rates and a long life prevail at temperatures between around 400 to 800 °C. The temperature of the three
way catalytic converter can increase beyond 1400 °C due to a malfunctioning of the engine such as misfiring etc. Such temperatures destroy the catalytic
converter by melting the ceramic monolith.
Another requirement for reliable long-term operation is that only unleaded fuel be used. Lead compounds form a deposit on the active surface and
prevent the exhaust gases from coming into contact with the catalytic layer.
Note: In view of its property of simultaneously reducing three pollutant components, it is known as a three-way catalytic converter.