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#1
08-15-2009, 04:39 PM
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What is this?
I have attached two photo's of the same unit that I discovered under the passenger front carpet against the firewall.
It is unplugged, which tempts me to plug it in again but as I have no idea what it is... I thought it might be better to ask!! From a 1986 420SEL Thanks for your help.
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Simon Shearer 1986 420SEL 2000 Porsche 911 Millenium Edition Carrera 4 2010 Lexus RX 350 2002 Kia Rio 2002 Hyundai Accent 
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#2
08-15-2009, 05:41 PM
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Alarm.
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Allen Kroliczek Oak Grove Autosport | Oak Grove Autosport 01 G500, 82 300TD, quite a few more.....
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#3
08-15-2009, 06:56 PM
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Hey man, thanks!
I will try connecting it and see what happens!
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Simon Shearer 1986 420SEL 2000 Porsche 911 Millenium Edition Carrera 4 2010 Lexus RX 350 2002 Kia Rio 2002 Hyundai Accent
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#4
08-15-2009, 07:42 PM
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Quote:
__________________
99 ML320 94 SL600 92 SL500 95 E320 Cabriolet 87 560SEC 86 300SDL Grease Car 80 380SLC Euro 13 Fiat Abarth 02 Maserati Spyder Cambiocorsa 00 BMW Z3 90 Rolls Royce Silver Spur 80 Ferrari 308 GTSI 88 Jaguar XJS12 H&E Edition 99 Land Rover Discovery Last edited by powerpig; 08-16-2009 at 08:42 AM.
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#5
08-15-2009, 09:04 PM
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Quote:
The PO unplugged it for a reason.
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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous “Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss
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#6
08-16-2009, 07:39 AM
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Quote:
I found out why. Nothing happened when I plugged it in. I tried to activate it but nothing happened. Later when I got in the car to go to the store, as soon as I turned on the ignition I had the whole horn blaring and lights flashing thing going on! So, any ideas about what might be the fix? Or am I looking for a new black-box controller?
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Simon Shearer 1986 420SEL 2000 Porsche 911 Millenium Edition Carrera 4 2010 Lexus RX 350 2002 Kia Rio 2002 Hyundai Accent
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#7
08-16-2009, 08:45 AM
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It's activated/deactivated when you lock and unlock the doors. As you found out, it goes off for no apparent reason. Even with a "new" black box, you will still have that problem. Do a search here and you'll see that most just unplug the box and leave it that way. If you want an alarm, I suggest you pick an aftermarket one up.
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99 ML320 94 SL600 92 SL500 95 E320 Cabriolet 87 560SEC 86 300SDL Grease Car 80 380SLC Euro 13 Fiat Abarth 02 Maserati Spyder Cambiocorsa 00 BMW Z3 90 Rolls Royce Silver Spur 80 Ferrari 308 GTSI 88 Jaguar XJS12 H&E Edition 99 Land Rover Discovery
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#8
08-16-2009, 10:07 PM
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Bad connections...
The alarm problems are usually caused by bad lock switches and/or the wiring ...these maybe or maybe not worth fixing...
If you open the front driver and passenger doors, you will see a plastic plug on the door side of the jamb. In the plugs are the connectors for the alarm system. There are three wires. These plugs generally fail when the plastic turns to dust. On some of the older w124's, there was also a "movement" (I think MB called it a "towing unit") unit under the left side of the rear seat. It triggered the alarm if someone or something bumped or tried to tow the car when the alarm was set. I repaired mine and got the alarm system to work, but it took days. There is also a switch that the hood contacts when shut. I disconnected the horn when troubleshooting the system...it's much quieter that way... Hope this helps... The Tenor Man
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Currently Driving..... 1987 Mercedes Benz 300D Turbo - Daily Driver. 2004 Buick Rendezvous...Smaller than it looks! 2005 Mitsubishi Galant - Not bad for a tin box...Lousey Seats Past Vehicles..... 1994 Dodge B-250 Van- GAS HOG..Succumbed to rust! 1989 Mercedes Benz 260E - Totaled but no one injured. 1977 Mercedes Benz 240D - Loved it, but SLOWWW! - Succumbed to RUST! 1976 Mercedes Benz 240D - Same as above! - 1975 Mercedes Benz 240D - Same as above!
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#9
08-16-2009, 11:21 PM
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The alarm on our 300E hasn't had a single issue in the whole time I've owned the car....did they improve the system on the later vehicles? I set it off myself on accident once, so I know it works!
 
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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