Weak rear AC on the e60

[almondking]

Had never really sat at the rear seats of the e60, so never notice the weak air conditioning.

Had turned it up to max and coolest on the rear center console, but still weak air ... Tired playing the idrive, but nothing controlling the rear AC.

Any advice for this?

 

[TezzaRed]

Send to workshop for a check? It could be choked or blocked perhaps? Due to age, dust accumulation, etc.