Faults P0139 & P0159 cause

Question

the following faults are present and it can be erased.
after erasing faults and driving the car faults are stored again

Answer 1

Hi there

Both of these codes point to a faulty rear O2 sensor on bank 2. Most of the time replacing the rear O2 sensor will solve the problem.

P0159 BMW - O2 Sensor Circuit Slow Response Bank 2 Sensor 2

Read more: https://www.autocodes.com/p0159_bmw.html