How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Thebmwbum Your Own Question
Thebmwbum, BMW Foreman
Category: BMW
Satisfied Customers: 715
Experience:  31 years BMW Experience
Type Your BMW Question Here...
Thebmwbum is online now
A new question is answered every 9 seconds

540i: 540i alarm wont disengage. Tried all the solutions on

Customer Question

540i alarm wont disengage. Tried all the solutions on this page
Submitted: 2 years ago.
Category: BMW
Expert:  Thebmwbum replied 2 years ago.
For the factory alarm , Disconnect the battery
Turn the key to the on position
Reinstall the negative terminal
the alarm indicator in the display will show 20 minutes
and begin to count down
The alarm horn will sound for 5 minutes and then stop
continue the count down for 15 minutes
you should then be able to start the car
there is no turning it off
update when possible
Please remember to accept and rate as a positive
or I receive no credit for my response