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SA code 551 - anti-theft/anti-break-in warning system

6K views 2 replies 2 participants last post by  Jayare 
#1 ·
The 320ce ('92) I purchased came with this option but for some reason the previous owner disconnected the alarm and installed some after market remote keyfob. I never got the original keyfob(s) as he lost it.
I am thinking of restoring it back to the original alarm and keyfob by ordering one from mercedes benz and enabling the alarm. I read up that the original keyfob only works from drivers door and boot with infrared direct line of site \ 3 feet away.
Have these been problematic? Any reason not to? I like to keep the car as original as possible. Its not a daily car so its no big deal to down grade the modern wireless keyfob to the original infrared. Maybe both keyfobs can work if its installed with a seperate \ different unit, but I might have trouble with the alarm.
 
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