1991 W124 300E what are the two red fuses for? Is this an alarm? If so how is the alarm activated? Just purchsed a used 300E with 70K miles. Did not come with a manual.
Thanks JR

Don't know about the 1991 model year, but if your relay box looks like the one in the photo, yes, the 2 red fuses are for the anti-theft alarm system on the car. The alarm is armed by locking the car doors, and it is disarmed by unlocking them with the key.

__________________
1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't

I have a US spec 1993 300E with factory alarm installed.



yesterday the alarm on my benz totally flipped out on me while driving(started sounding the horn,flashing lights) after pulling over and attempting to turn off the alarm using the key, i was surprised to find out that the alarm could not be disengaged via the key at either of the doors nor trunk.



i plan on trying to fix it if possible.



Could someone please tell me does the factory alarm have any relays that could be causing the aforementioned problem? if so , where are they located?



thanks in advance