Adaptions

[Davee]

Hello, Can someone please help me with my understanding of adaptions. I recently had the service light come on so went to the dealer which read the code and advised me to replaced the Exhaust cam sensor (X5 3.0i). I did this and also purchased a Peake code reader to reset the service light. Thinking problem solved.
However after about 50km or more, it varies the service light comes on with the code saying o2 adaption limit reached. table 19 E4,E3. After doing research this could running rich or lean and possibly caused by air intake leak or dirty mass air flow sensor.
I have also read that the adaption needs to be reset after the exhaust cam sensor is replaced and the Exhaust cam recognized.

My question is do I need to take the X5 to the dealer to have the adaptions reset correctly, ie the peake doesn't do this. or do I have another problem.

Your help is appreciated?