Attention: The components of the exhaust system can be heated to very high temperatures - try not to touch the heated elements and do not park the car on areas covered with flammable objects (fallen leaves, dry grass, debris, etc.)!
Attention: On gasoline models, do not use leaded gasoline to refuel a car equipped with a catalytic converter - the lead contained in it in a high concentration is deposited on the surfaces of the working element of the converter, significantly reducing its efficiency and service life!
catalytic converter (see illustration 28.1) is a highly effective element of the exhaust gas toxicity reduction system and is included in the exhaust system. Exhaust gases are oxidized/converted at high temperature inside the ceramic working element in order to reduce the level of toxic constituents in them (see chapter 4 for details).
28.1. The main structural elements of the catalytic converter: 1. Housing; 2. Work item; 3. Insulating seal
When starting a cold engine on eligible AT/Easytronic models (in automatic mode) upshift at higher speeds - this achieves a quick heating of the catalyst to the optimum temperature for its operation.
Make sure the engine settings and adjustments are correct. Deviations in the operating parameters of the ignition, fuel injection and engine management systems can lead to a dangerous over-rich air-fuel mixture, leading to permanent overheating of the catalytic converter. If a misfire occurs, the operation of the car should be suspended until the causes of the malfunction are eliminated, because. fuel that does not burn in the cylinders invariably enters the converter, where it can easily ignite (for the same reason, starting the engine by towing or pushing should be avoided). Remember to also keep an eye on fuel consumption, avoiding running out of fuel, usually associated with misfiring.
When driving in forced idle mode (e.g. when descending or braking) The fuel supply is automatically cut off if the gas or clutch pedal is not depressed. But at a high temperature of the catalyst to protect it from damage, this mode is deactivated. If a malfunction occurs in the engine management system, the corresponding control lamp lights up on the instrument cluster (see Section 16) - follow the given recommendations.
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