Hello everyone, I am new here and i need some help Code(P0175)

[iliamelko]

Two weeks ago, I bought a BMW E60 530i Facelift 09. All this time, I have noticed that something is wrong with the engine when i start cold in the morning. I checked the car for any faults and what I figured out is Code: P0175 (System to rich Bank 2). I searched on google and youtube for this specific code and the cause of this code is somewhat clear to me. The thing is that this code appears only in the morning when the car engine is cold, while later in the day, while using the car, I am constantly checking and it doesn't appear after I erase it in the morning.

My question is: what causes this only when the engine is cold and what should I check in this case?

Thank you so much in advance for your help.