BMW 3 Series
P0135
The vehicle is experiencing a P0135 trouble code, indicating a malfunction in the oxygen sensor heater circuit for the upstream (pre-catalytic converter) oxygen sensor in a BMW 3 Series E90/E91.
3 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Symptoms
9 common
- •Check engine light illuminated
- •Poor fuel economy
- •Rough engine idle
- +6 more
Most Affected Generations
2 generations
G20
2
E90
1
Severity Levels
1 level
medium
3
Quick Facts
3
Total Solutions
0
Affected Components
9
Common Symptoms
2
Generations
All Solutions
Showing 3 of 3 solutions for error code P0135 across all generations.