2004 E60 530i A/C not blowing
 

2004 E60 530i 115,000 miles. The A/C no longer blows as hard as it use too. It will only blow about half strength.

Help please. Any ideas what could be the issue?

half strength as in air flow, or temperature?

Half strength air flow. The little air that comes out is cold.

When was the last time your cabin air filters were changed?

Cabin air filters were changed about 3 months ago.

The idrive has a setting for air volume flow for air movement through the system. Don't rember exact description, but equal to low, medium, high setting.

The setting in iDrive system "Automatic program" is set to high.

No matter if put the A/C on Max, turn the dial all the way up, Auto mode, or any other combination. The blower still only blowers at half strength.

You may have a failed blower motor regulator.