did you look up the codes?


vanos code, camshaft code and 02 sensor code.


I would:


- run a Vanos function test
- remove vanos solenoid and EXTENSIVELY clean it (using 5V to actuate it while cleaning, looking for nice crisp clicks)
- MAYBE replace the camshaft position sensor
- Consider replacing pre-cat 02 sensors, (when were these last done?)


This isnt a 'rifle shot' diagnosis. One or more may not be 'necessary'. But they are $100 tasks, if you can DIY, so why not?



Dealer???? WTF?