Contact the Mercedes Dealership and give them the vin for your car. The radio code will show up on the 'VMI' They may ask you to drive the vehicle in to show proof of ownership but they should get the radio working again for you at no charge. Do not just enter random numbers or you will lock the radio and may have to wait up to 1 hour for it to unlock so that the radio code can be entered again.
Question edited for a lot more clarity.Question moved to model category.Sometimes they are just on, and sometimes the SRS will flash. Connect to a pro grade scan tool computer and look for the diagnostic trouble codes associated with the fault status.https://www.google.com/search?q=Mercedes+W169+SrS+system+light+on..
Question edited for a lot more clarity, and add maker.
Question moved to maker category.
These are all function of the Body Control Module. You need an auto electrician with a pro grade scan tool computer and access to factory technical bulletins.
https://www.google.com/search?q=mobile+auto+electrician+near+me
No clues in here.
Immobilizers are designed to prevent what you are needing done. There is no easy way around it. Your best bet is to call a lock smith to cut you a new key and program it to work with your vehicle.
'bonnet', a fellow resident from UK, or maybe Australia. :>D
You normally can't disable alarms as there is a computer in-between the switch and the light on the dash. You have to fix the fault, not find a way around the problem.
The easy way is to connect a professional grade scan tool computer, check for codes and read the data that is registering the problem.
Full 'year make model' in all questions please. Some issues are known issues and can be searched.
