A word to the wise. Forget the spliced in aftermarket O2 sensors. I can guarantee you that they will create more problems than than the original problem. I learned this the hard way. Also, Bank 1 sensor one, and bank two sensor one, is generally part specific in most newer model Benz's. Two much antiseize lube will also cause new sensors to crap out real quick. Gererally the amount factory place on the sensor thread is all you need.

 

Absolutely.
In line with my own advice.

Stuart.