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Keyless entry in a 300CD
I just installed a keyless entry system in my 1985 300CD.
I only used the master actuator to operate the vacuum central locks. Now both of my w123's are keyless. I cut the wires that are used for the slave actuators out of the harness to lighten the wire bundle. Here's the door and the red lines show the position of the master actuator. You can see the holes for the screws too. I only had to drill the top hole. I used a few washers on the top screw between the door and the actuator to hold it at the proper angle so it wouldn't bind with the door. Here you can see how I connected the actuator push rod to the door lock linkage. I had to cut a small piece of the push rod and tape it to the door lock linkage so the connector bug would have enough to grab onto. (The door lock linkage is a thin strip of metal.) I tapped into #2 on the fuse block which is for the clock and I grounded to the E-Brake pedal bolts. The receiver is zip tied under the knee panel below the dash. It was a PITA running the wires through the accordian at the door hinge. I got the Keyless entry kit on ebay for $35 shipped and it comes with 2 fobs. http://cgi.ebay.com/ebaymotors/REMOTE-POWER-DOOR-LOCK-4-DOOR-KEYLESS-ENTRY-SYSTEM-M_W0QQitemZ120353608581QQihZ002QQcategoryZ33723QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ht_4715wt_1083 The CD was easier than the TD to hook up the linkage. I had to drill both holes in the TD and the push rod needed creative bending to make it work. I'll take pictures of the TD's linkage the next time I have the door panel off.
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Chad 2006 Nissan Pathfinder LE 1998 Acura 3.0 CL OBK#44 "Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.) SOLD 1985 300TD - Red Dragon 1986 300SDL - Coda 1991 - 300TE 1995 - E320 1985 300CD - Gladys |
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Good job, looks very much like my 300D installation 2 years ago.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
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Nice photos Chad. I ordered another unit from the same vendor. I installed a similar unit about 1 year ago but it has since stopped working. I'm anxious to determine if it's the control unit or the actuator that has failed.
I also did some creative bending with the actuator rod; looks like a much simpler install in a CD
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83 300d - 390k |
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I wonder if there is a way to program a remote for an alarm to work with something like this. My alarm is going to be coming soon.
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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much) Wife's - '08 Saab Sportcombi Aero Riding a '03 Yamaha Warrior |
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Quote:
Quote:
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Chad 2006 Nissan Pathfinder LE 1998 Acura 3.0 CL OBK#44 "Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.) SOLD 1985 300TD - Red Dragon 1986 300SDL - Coda 1991 - 300TE 1995 - E320 1985 300CD - Gladys |
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Looks good. Thats almost exactly what I did for my car.
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Nice goin' Chad. Now if I just had that kind of time right now . . .
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85 300D 75K Anthracite Grey 0-60 in 13 seconds **For Sale** 84 300D 333K Black (The Velveteen Rabbit) 0-60 in 14 seconds 00 Toyota Sienna 208K (Sold) 15 Subaru Outback 43K 11 Subaru Outback 67K 98 Ford Taurus 100K (Gertie - Was Grandma's - drove it to church and shopping - really) Daughter's car now. 30 Model A Ford 2 Door Sedan (Sold) 0-60 in . . . Never reached 60 |
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with this system installed, the key can still be used to open/lock the door?
need an over ride incase of power loss. Looks good Chad. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
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EDIT: the knob is vertical in a sedan, but this pictorial is for a coupe |
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Thanks guys.
Charlie, as ::matthew already stated, the system still works as the factory intended. The master actuator doesn't resist at all when you use the key. In a worst case scenario where maybe the push rod and connector bug come off and possibly jam the door lock mechanism, you can always use the passenger door. Benefits of keyless entry: - makes you look really cool in the parking lot - saves door lock tumblers - never have to fumble with keys in the dark - never have to worry about frozen door locks in winter - one button opens ALL doors no matter what door you're at
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Chad 2006 Nissan Pathfinder LE 1998 Acura 3.0 CL OBK#44 "Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.) SOLD 1985 300TD - Red Dragon 1986 300SDL - Coda 1991 - 300TE 1995 - E320 1985 300CD - Gladys |
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The thing I have never liked about these cars, is when the drivers door is unlocked, the other 3 doors unlock at the same time. now the problem with this is at night in a parking lot or some other undesirable area of town, I may only want to open the drivers door. never know if some evil person is lerking on the other side of the car to jump in with you or your wife.
Would be nice to wire one of these systems to only open drivers door, or what ever combination of doors at the time. might be a more complicated than it is worth. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
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Good job Chad, I love my keyless entry.
I'm sure that pic will help out people in the future. My wagon is arranged a little differently...I had to drill two holes on the rear edge of the door and mount the actuator there. And my master vacuum switch is located a little higher, right under the lock knob if I remember right, so the connector rod took some bending. I'm sure there are more differences than that on the coupe doors One cool thing about the kit I got (also from ebay, around $35) is the flashing lights when locking/unlocking. The funny things is, every so often it flashes twice for "lock" and its only supposed to flash once (and its not me pushing the wrong button). Very confusing when you're trying to make sure your doors are locked. One recommendation I'd offer is to use loctite on the screws on the "bug" (I didn't know it was called that ). Mine came loose after a few months. The solenoid hits the linkage with a pretty good force, and the total travel of the solenoid is longer than the total travel of the lock knob, so the bug gets the full force of the solenoid when the lock knob reaches the extreme of its travel. Also, I was probably a wimp and didn't tighten down on those screws enough the first time. Either way, now its got loctite...I rather a positive connection, for now the friction connection will have to work. Next time it comes loose, its getting JB weld
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1985 300TD-euro 352,000 mi 1974 240D (1?)52,000 mi - has a new home now |
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On my wagon, I didn't use the bug. I bent the end of the rod and slipped it into the lock clip of the door lock linkage. I really need to take a pic of the setup. Maybe I'll take the door panel off tomorrow.
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Chad 2006 Nissan Pathfinder LE 1998 Acura 3.0 CL OBK#44 "Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.) SOLD 1985 300TD - Red Dragon 1986 300SDL - Coda 1991 - 300TE 1995 - E320 1985 300CD - Gladys |
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Looks good Chad. I may order one for the SEC, anyone do a 126 with this kit yet?
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1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 |
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