I have a BMW 728i 1997 automatic, and recently when i stopped at a stop sign the car failed to move when i acceleratored i put my foot down until trans failsafe prog came up and the car started to move and i made it home like this. I drove it the next day and the gears changed really slowly and didn't jam at stop signs.

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Question moved to model category.

It sounds like you have and unusual and flawed driving technique.

Manual or Automatic?

Automatic. You never use neutral unless you are in a car wash that drags your car by the wheels. Decelerate, foot on the brake and into Park. Your right foot does both brake and accelerator, left foot does nothing. I saw a lady 2 days ago with left foot on the brake and right foot on the accelerator.

Manual. Downshift through the gears, right foot on the brake, left foot on the clutch and into neutral and hand brake on.

If you are doing that, the vehicle needs diagnosis why it is happening.

try calling a car expert i aint one

have the fault codes read to determine which servos/sensors have failed. It is possible that the hose to the turbo actuator is leaking and the turbo is not working as it should or maybe is not connected.

Check your Transmission fluid Level, That is the Slip

check the fuel pump.Low pressure in the fuel system will 'starve' the engine when you put your foot down or whenever you load your engine

try and pull the shafter in and out of park a few times and try again

not enuf fluid.

Have you checked the charge on the battery? How bout your connections at the terminals. Vw are very sensitve to voltage drops. You might even have something thats draining your battery

you may have a bad throttle position sensor.

You rear planetary set is worn from a restricted cooler.