The best way to fix these alarms is to unplug them

in passenger footwell- black box- two plugs. Unplug.

There is also a RED 12 pin connector down there (on right side)- that is the SRS system!

__________________
'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E