2001 bmw x5 when I try to start it the light flicker and makes a clicking noise. Is it just the battery

what sort of noise is it? is it like relay clicking/flickering?

if yes. check fuel relay

Yes it is more than likely your battery is going bad. If you replace your battery and it still has the same issue then you need a new alternator. In your case though it sounds like a bad battery.

same problem! you ever fix this?

Replace the battery. (And possibly the Alternator). Reset any codes and try again. A week battery will cause al kinds of havoc and will result in just what you describe. BMW's are very sensitive to correct voltage.

This sounds like the battery may be weak or a bad connection. I would start by have the battery checked or try jump starting the car, try jumpimg it and see if that will make it start, if it starts then you may have a charging or battery problem, seeeing that this car is over 10yrs old and if the battery is the same one that came with the car then i would have to think you may have a bad battery. good day

Hey i have a 2001 BMW X5 i disconeted the batterie cable and put it back and everything work fine except my key alarm can anybody help??

theres an anti-theft system. take positive terminal off battery, have someone holding the key on like trying to start it, then put the terminal back on and that should start it right up (had same problem in my dodge ram) if not, check all you're connections

clicking is always low battery. takes heavy amps to start car. you need a battery replaced

This sounds like a low-brake-fluid-pressure symptom. Check brake fluid. Next check for leaks.

More info?, let me know...

the battery needs to be replaced or use heavy duty jumb leads and be carefull if you conect the leads the doors lock so have one open