P0170 code on my BMW Tourer 1.8L Petrol

Question

BMW Tourer 1.8L Petrol engine light on car run fine boot opens on its own

Answer 1

Hi there,

This code means it is running to rich on bank 1. This can be the result of a faulty O2 sensor. It can either cause the fuel mixture to be to rich, or it can be reading wrong and throwing the code. If the car is running fine, I would start by replacing the rear O2 sensor.