BMW E65 automatic gearbox jerking and clunking
730d735i
E65 automatic gearbox hunts at steady throttle and shifts roughly - what helps?
Changing the oil pan and filter and using new gearbox oil is a sensible first step. It has almost completely cured the hunting and rough shifting. Old oil doesn't always look bad even when it is already worn out.
Why doesn't the E65 go into reverse straight away when pulling away after the car has stood for a moment following a drive?
One possible cause is a leaking gasket between the mechatronic unit (the gearbox control unit) and the gearbox. When replacing the gasket, it is worth renewing the oils, filter and oil pan at the same time.
What if an E65 730d shifts from 2nd to 1st harshly and with a clunk when stopping?
This is a known gearbox fault. If changing the oil and filter doesn't help, what remains is repairing the gearbox, which is a considerably larger job. Let a workshop find the cause of the fault before major work.