BMW Repair: BMW 530i, level sensors, bmw 530i

Question
I have a 530i 1995.A major service was done on it last week and the battery was also replaced.I noticed now that there is something wrong with the electric seats.Forward/back/up/down function fine on both front seats but both head-restraint height adjustment not working although one can hear motors working.Passenger seat back angle adjust only on the left side.
Warning light "oil low" comes on when started or switch the car off.This morning the clutch the clutch stays down,after pulling it back it works fine.Seems i waste a lot of money.  

Answer
HR, if you don't want to repair these issues...don't. You need to have these problems diagnosed. Oil level sensors are common. You need to have a cable repair for passenger back rest. Inspect the gear mechanisms for the headrests. Slave cylinder are common in this situation.
-Evan