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Instructions for vehicles with a catalytic converter in the exhaust system (VW Passat B3)

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  • Instructions for vehicles with a catalytic converter in the exhaust system
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Proper operation of the catalytic converter is critical to operating the vehicle with minimal damage to the environment.

If the vehicle is equipped with a catalytic converter, the following should be taken into account:

Fuel vehicles with a catalytic converter only with unleaded fuel.

In cars with a catalytic converter, the fuel tank should never be empty. When the gasoline runs out while driving (and also when the engine is subsequently started), the engine runs intermittently for some time - during this time, unburned fuel gets into the exhaust system, which can lead to overheating and destruction of the catalytic converter.

If the engine starts to run rough and lose power while driving, the cause may be a malfunction in the ignition system. In this case, unburned fuel gets into the exhaust system, which can lead to overheating and destruction of the catalytic converter. If the engine starts to run rough, you should immediately reduce the speed and have the malfunction repaired at the nearest service station.

Do not turn off the ignition while driving.

Do not overfill the oil.

Do not tow the vehicle for the purpose of starting the engine for a distance greater than 50.

Caution: Because the catalytic converter can reach very high temperatures under particularly unfavorable conditions, the vehicle must be parked in such a way that the catalytic converter does not come into contact with flammable objects (for example, tall dry grass).


Note: Even if the catalytic converter is working perfectly, a sulfur smell may occur under certain conditions - this depends on the sulfur content of the fuel. This can often be avoided by switching to a different fuel (for example, brand E).

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The text has been checked: Medvedeva Elena

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