Has anyone installed an aftermarket keyless entry system (perhaps with an alarm) into their W126? I'm just curious if it can be done.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

I havent done it to a w126, but I have done it to an 81 2d0D, and plenty of W124s.

you will need to wireup relays to activate the central locking on the w124, same should apply to a w126, otherwise you need to put an actuator on the drivers door to pull that lock down which will in turn activate the rest of the vaccum locks.

if you want a wiring diagram which tells you which wires are tobe hooked up to the aftermarket alarm, I can get one. It is not an mb wiring diagram, it would be from audiovox.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon

My son has one on his 300e...it came with the car... darn thing locks itself often.... be careful.

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

If you could post it or email that'd be great!

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Hit Man, I have it on mine.....msg me on msn I'll let you know about it.

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99 C43
98 S420
99 C230K
01 C240

I currently have a Clifford Alarm system that has the capability to do keyless entry, but I was being cheap when I had it installed and chose not to have it hooked up. If you guys could post the stuff that you have discussed privately, it sure would help!!

diagram for your 85 300sd...

Security
WIRE COLOR POLARITY LOCATION
Battery RED (+) IGNITION SWITCH HARNESS
Ignition 1 PINK/RED (+) OR PNK/BLK IGNITION SWITCH HARNESS
Starter 1 VIOLET/WHITE (+) OR VIO IN HARNESS GOING TO CONSOLE
All Door Trigger BROWN/GRAYF (-) ,BRN/GRY/BLK(-)R AT OEM ALARM RT FOOTWEL
Trunk Trigger BLACK/YELLOW (-) AT OEM ALARM MOD PASSENGER FOOTWELL
Alarm Disarm GREEN/YELLOW (-) AT OEM ALARM OR DRIVER'S KICK
Parking Lights GRAY/WHITE L (+) AND GRY R AT LIGHT SWITCH
ALSO (+) GRAY-DIODE ISOLATE
Convenience
WIRE COLOR POLARITY LOCATION
Headlights-Lo WHITE/YELLOW (+) AT LIGHT SWITCH
Remote Start
WIRE COLOR POLARITY LOCATION
Battery RED (+) IGNITION SWITCH HARNESS
Ignition 1 PINK/RED (+) OR PNK/BLK IGNITION SWITCH HARNESS
Ignition 2 PINK/YELLOW (+) IGNITION SWITCH HARNESS "2ND ACC"
Accessory 1 PINK/GREEN (+) IGNITION SWITCH HARNESS
Starter 1 VIOLET/WHITE (+) OR VIO IN HARNESS GOING TO CONSOLE
Anti-Theft Descript NONE
Tachometer BLACK (-) OR GRY/YEL (-) AT COIL LEFT INNER FENDER
Parking Lights GRAY/WHITE L (+) AND GRY R AT LIGHT SWITCH
ALSO (+) GRAY-DIODE ISOLATE
Brake Lights BLACK/RED (+) AT BRAKE SWITCH
Horn BLACK/YELLOW (-) AT STEERING COLUMN
Modules
WIRE LOCATION
Please select another category
Doorlocks/Windows
WIRE COLOR POLARITY LOCATION
Power Unlock GREEN OR BLUE (VAC) VACUUM DOOR LOCK SYSTEM "SEE TECH TIPS"
REQUIRES THREE SECOND LOCK PULSE
PowerLock GREEN OR BLUE (VAC) DRIVER'S KICK OR PUMP UNDER REAR SEAT
REQUIRES THREE SECOND LOCK PULSE
LF Window Up LF:GREEN
RF Window Up RF: BLACK/WHITE
LR Window Up LF:BLACK/PINK
RR Window Up RF: BLACK


Doorlock relays diagram for vacuum locks....
http://www.the12volt.com/doorlocks/page3.asp#vac

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon

I have an 82 300 SD, and am in the process of putting in a keyless entry-- But all of the posts I have read seem to mention a " factory alarm" If my car has one --I have not found it, does anyone know if they were on all models ? or an optoin? I cant believe that this is such a big deal --as the auto locks are vacume --and all one needs to do is splice the control modual in front of the master vacume switch--- or am I mistaken in my ignorance?

I have one too, passanger floor pan. It's under there, just look for it.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

1984 was the first year for the factory alarm, I believe. The 81-84 SD does not have a vacuum actuator in the driver's door, only a switch to activate the vacuum pump. Because of this, an electric actuator is piggy-backed onto the opening rod to work the door lock (and this switch) on the driver door. I did my 1984 300SD this way and it's worked great for a couple years now.

Maybe you could splice a vacuum line into the system and run it to a 1985+ actuator/switch in the drivers door and then hook up the keyless entry to the pump as others have demonstrated on the post 85 MB's, but it seems like more work.

The absolute best DIY (with full 52 pictures) on how to DIY for the 81-84 system and the 85+ system ( 21 pictures) is Thomas Pindelski's subscription site (~$30/yr.)
http://www.pindelski.com/

I'm not advertising his site; no affiliation etc., etc,.. but it IS good.

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)

I have remote door lock/unlock of my 1986 300sdl, my son's 1992 400e, and my "spare" 1988 300e. Autopage makes it. In fact, on the 300sdl I just have remote door, on the 300e i have remote door/remote start, and the 400e has all the above with alarm. Auto stereo dealer installed all the systems, with the remote open costing $119, the remote open/start costing $179, and the 400e is a full blown send/recieve unit that was about $379. Works perfectly and I would never ever do without!

Anyone know where to buy relays that do what the link says needs to be done for the vacuum door locks? Thanks

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2005 Mercedes C230k sport sedan, 6 speed
1987 Porsche 924S - 968-engined track car

Never mind, I think I answered my own question. Found this universal adapter by omega (which makes the crime guard, I believe) that incorporates the 2 relays and vacuum interface in one unit:

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2005 Mercedes C230k sport sedan, 6 speed
1987 Porsche 924S - 968-engined track car