Just bought my first real car
Finally I've bought myself a XC60 R-Design 2019 with 135k. The car handles very well, no lag or hesitation.
After 300km in a few days, just got the P0420 (Catalyst System Efficiency Below Threshold). I know this seems to be normal and expected.
Here's the facts,
The car has been on sale for a few weeks so I can "assume" that this car wasn't being driven a lot so I've fulled the car and went my way.
I've cleared the code after 250km ish, did the recommended drive (highway, steady speed, etc) and it came back.
Next steps :
Do a test drive 30-45 minutes with the obd2 adapter recording all data.
Questions:
Should I be worried ?
Should I ask the dealer for explanation?
u/TheBabeu — 3 days ago