I want to install remote locking (keyless entry I think you guys call it) on my E300D.

The remote locking relay I have has 12v power/ground, plus the 2 lock/unlock wires.

Electronics is not my best subject, but I've got at the vacuum pump and found it has 2 wire connectors attached- flat with power supply wires and round with 6 wires. I presume I connect my 12v power to one of the red wires in the flat connector, and then the 2 lock/unlock wires to 2 of the wires in the round connector?

cheers.

__________________
1993 320TE M104
---------------------------------------------------
past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
----------------------------------------------
"music and women I cannot but give way to, whatever my business" -Pepys

Bump

__________________
1993 320TE M104
---------------------------------------------------
past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
----------------------------------------------
"music and women I cannot but give way to, whatever my business" -Pepys

At the top of this page, click on the D.I.Y. (Do It Yourself) tab.

Half way thought the "Chassis" sub-heading is a fantastic article on installing keyless entry on a 124.

Jeff Pierce

__________________
Jeff Pierce

Current Vehicles:
'92 Mercedes 190E/2.3 (247K miles/my daily driver)
'93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk)
'99 Kawasaki Concours
Gravely 8120
Previous Vehicles:
'85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon
'53 Willys-Overland Pickup
'85 Honda 750F Interceptor
'93 Nissan Quest
'89 Toyota Camry Wagon
'89 Dodge Raider
'81 Honda CB 750F Super Sport
'88 Toyota Celica
'95 Toyota Tacoma
'74 Honda CB 550F

I did see that one, but it didn't quite answer all my questions...

__________________
1993 320TE M104
---------------------------------------------------
past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
----------------------------------------------
"music and women I cannot but give way to, whatever my business" -Pepys

Like what?

jp

__________________
Jeff Pierce

Current Vehicles:
'92 Mercedes 190E/2.3 (247K miles/my daily driver)
'93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk)
'99 Kawasaki Concours
Gravely 8120
Previous Vehicles:
'85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon
'53 Willys-Overland Pickup
'85 Honda 750F Interceptor
'93 Nissan Quest
'89 Toyota Camry Wagon
'89 Dodge Raider
'81 Honda CB 750F Super Sport
'88 Toyota Celica
'95 Toyota Tacoma
'74 Honda CB 550F

I used the el-cheapo unit from J.C. Whitney, about $30 on sale. The diy instructions from this site included relay wiring as the lock/unlock pulses from the remote were not compatable with the air pump (believe the polarity was different from what the remote unit put out). Also had to increase the length of the units output pulse. Also (again) had to run a wire from the unit to the factory alarm for the disarm function (it would arm by itself but not disarm). The unit and all wiring (except the disarm wire) was contained under the seat next to the vacuum pump (didn't use the light flash function). This worked for an 87 300E and an 86 190D.

__________________
Hanno
'79 6.9 Sold (after 27 years)
'83 280SL, 5 spd.
'94 E320 Sdn. 5 spd conversion
'02 E320 Sdn.(on loan to mom!)
'87 300E (5 spd. conversion) Sold
'05 E500 Wagon

nice JC whitney is pretty cool.

Does the install need special tools?