How does a clogged catalytic converter affect my BMW 2 Series’s performance and fuel efficiency in Pakistan?

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How does a clogged catalytic converter affect my BMW 2 Series’s performance and fuel efficiency in Pakistan?

Lately, my BMW 220i feels sluggish and consumes more fuel. Could a blocked o r clogged catalytic converter be the cause? What are the symptoms and risks if I ignore this?

Gari Specialist asked on 13 Jun 2025 13:28:11 pm

1 Answer

13 views |

Gari Master - on 13 Jun 2025 13:31:57 pm

A clogged catalytic converter causes increased exhaust backpressure, which leads to:

Loss of engine power and sluggish acceleration.

Higher fuel consumption as the engine works harder.

Possible engine stalling o r rough idling due to restricted exhaust flow.

If ignored, it can damage other engine components like the exhaust valves and oxygen sensors, leading to costly repairs.