My 1999 V70 non-turbo (built January 1999) threw a code yesterday. An Autozone guy (who owns a Volvo S80) read the codes for me and tracked it down to the rear (after cat) oxygen sensor. I think the code description was Threshold Bank 1 Sensor 2. He then got the readouts and graph on screen for the rear oxygen sensor and said it was way off base.

But, I'm finding more than one direct fit Bosch numbers for the car. Autozone's site shows both a 15062 and a 15035 for the car. Other sites show that the 15062 is for a 1998 V70. Eeuroparts shows both a 15035 and 16197 for the car, but on the phone they said the 16197 was a mistake because it was for a turbo model. Tasca shows the part available, but does not give a part number that I can find. The local dealer can order one based on the VIN, but don't know the Bosch number and they value it at $252.

Any advice on picking the right one? I don't intend to do a universal because I don't want to mess with the wires. Are there more than one engine control systems on this type of car that take different O2 sensors?

Thanks,
Charley