How do you turn off alarm 01 18 petrol Ford Mondeo?

To turn off the alarm on a 2001-2018 Ford Mondeo, first unlock the car using the key fob or the physical key in the driver's door. If the alarm is still sounding, you can try starting the engine, as this often deactivates the alarm system. If the alarm persists, consult the owner's manual for specific instructions regarding the alarm system or consider disconnecting the battery temporarily to reset it.