What is the reason for BMW exhaust catalytic converter conversion failure?

1 Answers
SarahMarie
07/30/25 5:19am
BMW exhaust catalytic converter conversion failure is caused by a clogged or poisoned three-way catalytic converter. Here is some relevant information about the three-way catalytic converter: 1. Appearance: The three-way catalytic converter looks like a metal can from the outside, but it contains a 'carrier' inside for purifying exhaust gases. This honeycomb-shaped ceramic carrier is coated with a precious metal slurry, mainly composed of platinum, rhodium, and palladium. 2. Exhaust purification function: The precious metals act as purifying agents, reducing HC and CO in the exhaust gas into water and CO2, while decomposing NOx into nitrogen and oxygen. This is the exhaust purification function of the three-way catalytic converter.
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