The alarm keeps going off in my ml270cdi can i disable it

Depending if it is a aftermarket or a factory alarm, they should all have fuses that can be removed. By removing the fuse, you may lose your keyless entry option. Most aftermarket alarms have a siren that is usually mounted under the hood in the engine compartment area. I've seen where people have cut the wire going to the siren to disable it but keep the power going to the alarm system to keep the keyless entry still functional if it came with the alarm system.
Factory alarms usually use the existing horn for the alarm. If that is the case, you might need someone who is experienced to disable the circuit so that the horn will not sound if alarm goes off but the horn will still be functional when needed. Hope this helps.

The alarm tripping is often caused by a bad door or hood switch. Since the hood switch is always exposed to water and corrosion, that one usually goes bad first. Check that out. And no, you can't disable it.

You are not able to disarm the factory alarm on this vehicle. You will need to have it diagnosed. But the issues sounds to me like the key fob is bad and needs to be replaced

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_677dced97ad9bddf

Yes, you can, but legally only a dealer can do that. It's easier to just find out what's triggering the alarm and fix that - usually it's a faulty door lock sensor that's easily replaceable for under $200.

the alarm is the fault refer to your alarm manual to disable it, if you don't know about this unit it is best to seek help from someone qualified and available to look at it for you, it seems as if your alarm is set, most alarms have a starter disable function and the alarm going off is an indication that it is set.

can you check under hood, there is a fuse box, remove fuse box lid, inside is printed names of circuits if you have an alarm circuit , remove that fuse, then check if car starts and runs, if so, alarm is disabled.

my panic alarm keeps going off on my 2003 ford explorer for no reason.

pop the truck and the alarm will disable

if you disconnect the brown earth wire from the alarm hub it will disable the alarm

Check your car battery. Many alarm systems during that mfg year relies on voltage sensors to trigger the alarm.. When a battery is old the standing voltage can vary enough to trigger the alarms resting voltage range.. keep in mind there are sensors in your seat too that is part of the seatbelt system that works on voltage. check both the battery and voltage sensor of the alarm