What is it when car has to be jumper off after cranking ? What size battery for this car?

vehicle is sluggish, sometime it jumps and not shifting. signal lights not turning off and

The message appears when the car is turned on.

The transmission automatically shifts to P when the engine is switched off. please contact BMW.

left side signal

still not working .what can i do?

I was told by an electrician that I need to change the above switch because the reverse lights when engaged do not light.

I put a new battery in my car but its still not starting when I push the start button all the electronics come on but the car is not starting can you help me with this

Do you think it could have somthing to do with the oil

The car is not starting when I press da button or even try the key, and even when I start a cable jump for the battery, it still nothing .