Pre-Cat Oxygen sensor?

[ard]

Originally Posted by bawareca

What is the mileage of your X5?It is very rare both sensors to be bad,if not to say that it never happens.If,for example, there is a lean condition due to a vacuum leak,the ECU may throw a O2 sensor related code,but there is a difference between code pointing to the 02 sensor and bad 02 sensor.In the original BMW programs there are tests to be run to evaluate the condition of the sensors. If the Indy wants to replace both the technician has to show you the reason to be replaced or take responsibility if after spending $800 the problem persists.

+1



The sad truth is, however, that after he spends $750, and the problem comes back, then there will be ANOTHER issue, that "most likely is what caused the sensors to fail" for more $$$. Nobody EVER gives back cash for the poor diagnoses they perform (present company excluded. )

[bawareca]

Originally Posted by ard

+1



The sad truth is, however, that after he spends $750, and the problem comes back, then there will be ANOTHER issue, that "most likely is what caused the sensors to fail" for more $$$. Nobody EVER gives back cash for the poor diagnoses they perform (present company excluded. )

Sad true!!! There are no more people interested in daignosing a sick car,just ones that are interested in collecting $$$,as much as possible.I always go out of my way to make sure that the customer(or myself) doesnt buy parts that he doesnt need.That is not the best way to make living,but it is what it is.That is the reason i dont run a shop anymore.If you have $2500+ monthly expenses in rent and utilities and 1 GOOD WORKER(now that sounds really funny if it was not tragic) you cannot afford to let any customer to leave the shop with a bill smaller than $500
But back on track,I am ready to bet a substantial amount that with 70 k miles both pre-cat 02 sensors are in great health,except if something really bad happened,but I dont believe so.