BMW X3
P0171
The P0171 code in a 2011-2018 BMW X3 F25 indicates that the engine control module (ECM) has detected a lean air-fuel mixture in bank 1, which can lead to poor engine performance and increased emissions.
60 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Symptoms
10 common
- •Check engine light illuminated
- •Rough idle or stalling
- •Decreased engine power or acceleration
- +7 more
Most Affected Generations
2 generations
F25
43
G01
17
Severity Levels
1 level
medium
60
Quick Facts
87
Total Solutions
0
Affected Components
10
Common Symptoms
2
Generations
All Solutions
Showing 60 of 87 solutions for error code P0171 across all generations.