I have a 1998 bmw 5 series and nothing works

have a load test done on the battery as it may have sulphated up the plates and now will not hold a charge.. A long time stationary and short runs do help the situation.

turn steering wheel hard back and forth while trying to turn key sounds like the steering lock tab causing problem

try replacing fuel filter , and next time you go to start it turn key on let it sit for count to 50 then start see what happens

Make sure it is not the steering wheel lock. Partially turn the wheel while trying key.

Have you tried jump starting? It could be low battery. Car needs at least 12+ volts to start

hi...
1.check the charge in the battery because for starting the car you require full battery the other components can work with little charge itself.

try changing the battery or recharging the battery

Very likely the battery is bad, needs replacing. You can try to open it and buy a replacement.

if after unlocking and pushing the button to open not working if it has the back seats that fold down to allow long things to be put in trunk you can look for the manual trunk release. it should be illuminated in the dark

try this, put the key in the drivers side door then turn the key to open position as th same time lift up the door handle . if this does not work then jack up the car , and with jumper cables hooked them to the starter--red to solinod of starter and the ground to any good ground.then hook the other end to another vehicle.keep in mind all the safety precautions!Then try the door with the key in normal operation.Your battwery is dead.!

hi, to program the keys to the vehicle is quite simple

1) open the vehicle, sit inside and close the door

2) insert the key in the ignition and turn to position 1 so that just the air bag light illuminates

3) press and hold the unlock button on the key and remove the key from the ignition (do not release the unlock button)

4) while still holding the unlock button with the key removed press the lock button 3 times

5) release the unlock button on the remote and the door locks should lock and unlock if the proceedure has been carried out correctly

6) to program any other key(s) press and hold the unlock button on remote and again press the lock button 3 times but do not insert it into the ignition or turn the ignition on as done previous.

you may want to print these instructions and read them a few times before proceeding, if you muck up the process while programing keys, no harm will be done, you just have to start the process over. hope this is of some help, regards mark.