BMW X3
P0420
The P0420 code indicates a problem with the catalytic converter efficiency on a BMW X3 G01 (2018-2024). This code typically suggests that the catalytic converter is not functioning as intended, which can lead to increased emissions and reduced engine performance.
60 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Symptoms
10 common
- •Check engine light illuminated
- •Decreased fuel efficiency
- •Rough idling or stalling
- +7 more
Most Affected Generations
1 generation
G01
60
Severity Levels
1 level
medium
60
Quick Facts
213
Total Solutions
0
Affected Components
10
Common Symptoms
1
Generations
All Solutions
Showing 60 of 213 solutions for error code P0420 across all generations.