3 hours ago, Aakayamy said:

Mechanic checked the alternator and said it was perfect. Not sure why the other place my dad went to said it was needing replaced. 
got the varta A7 (e39) agm battery today and installed it myself and did adaption with vcds. 
 

This is the voltage now I’m getting with and without started.

Is the higher, second reading with the engine running?

Yes that’s the reading with the car running. But didn’t put on Headlights,fan.ac or radio.