Hi,
I just received two oxygen sensors which I ordered for my wife's E39 - they were supposed to be Bosch p/n 13884. To my surprise the Bosch-marked boxes with the correct p/n were marked as made in Japan (I thought no problem as they could be outsourced), but when I checked the sensors, they were made by NTK (which is a cheaper product), and they didn't look like a Bosch sensor either. After I contacted the supplier, they told me that they come in this way now and offered me the phone number to Bosch. Has anyone had a similar experience when purchasing Bosch oxygen sensors?
Thanks.
Steven G.