X5 E53 (1999 - 2006)
I bought a used 2001 X5 3.0, and it just failed the emissions inspection. I have codes for 3 O2 sensors..
The X5 has passed 100k, which I have learned here is about the benchmark for these to be replaced.
So is having more than one go bad in a short span a common thing?
The vehicle did sit...