I have a code in my 2003 525i it's p0741 how difficult is it to fix and what cos

Basically, the code P0741 for 2003 525i BMW is for torque converter clutch circuit stuck off. Possible causes for that are: 1. Low transmission fluid level 2. Dirty transmission fluid 3. Faulty torque converter clutch solenoid valve 4. Torque converter clutch solenoid valve harness or connectors 5. Torque converter clutch solenoid valve circuit is open or shorted 6. Transmission internal mechanical problem If such code is shown in your 2003 BMW 530i, the reason is the same. It should be fixed by experienced technician.