Help me when install this keyless module?




using my car more but can only get in from the trunk. Not te best for security and convenience but my door locks only work from inside, the key can’t trigger the unlock.
I have the t-connectors for splicing but there are many wires on this module and I don’t think all are needed. If I share the diagram can someone help me set up the wiring?
And can I easily add a modern beep? I want the triple chirp that my w211 does




And make sure the jumper on the unit is switched to pneumatic, it changes the trigger period to be longer.
- Cheers!




I made need a different type of connector for the unit than the t-taps i will use when connecting It to the car
Anyone have a photo of theirs?




As far as I remember, I did not cut any wires but had to tap into the power and ground only with a T connector.
Unfortunately, I did not take any pictures during of after the installation but you'll be OK without that reference.
One last thing, when you are done, and you are happy with the results, immediately order another unit that you can swap in, in case this one does not last long.
My first one lasted only 5 years and luckily the same unit was available 5 years later, but in case they are not, it sure would be good to have another one to swap in without having to rewire, just plug and play.
On the chirper, I intended to add one in but you need a chirper that works by just powering up it's power line. Some of them actually need an audio signal. This units does not have an audio output. It just pulses a chirper power signal for 1 second or two. I never added the chirper.
- Cheers




step 1: orange and white/black connect to each other
step 2: white and orange/black to the car unit main line, a line will need to be disconnected
step 3: yellow to ground and yellow/black to positive on car
step 4: change to pneumatic lag switch
step5: connect it to the appropriate wires for the lights….don’t necessarily care for this though I just don’t want to keep using my trunk to open the car
Last edited by BetterDaze; Mar 20, 2024 at 12:40 PM.
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i won’t be cutting anything on the car, and am trying to prep the unit before I install it.
my t taps are too big so I got some from Amazon coming. I got these cheap ones from advance they don’t fit
Last edited by BetterDaze; Mar 20, 2024 at 04:15 PM.




step 1: orange and white/black connect to each other
step 2: white and orange/black to the car unit main line, a line will need to be disconnected
step 3: yellow to ground and yellow/black to positive on car
step 4: change to pneumatic lag switch
step5: connect it to the appropriate wires for the lights….don’t necessarily care for this though I just don’t want to keep using my trunk to open the car
Step -1: Disconnect battery
Step - 0: Never solder anything while the connector the wire is connected to the unit. So disconnect the electronics before you solder. You can damage the electronics because the soldering iron is conductive and will blow up a powered line or active circuits.
Make sure the T-connector joint is soldered. Otherwise the wedged in contact will most likely be inoperative or intermittent.








If you are willing to cut the power/ground lines, then use a bullet connectors, or even W201 3-terminal connectors for a professional finish.
If cut there are also quick-connect connectors that are super reliable, will not require soldering. I can send you a photo or a link if you want.
Let us know if my assessment is correct in how those connectors you ordered are used.




Last edited by BetterDaze; Mar 22, 2024 at 12:40 PM.




If you are planning on not soldering, that is better than the standard T connector. Let us know how they turn out.




where do they need to go? I haven’t taken the seat off yet to be fair




The other control inputs are yellow green and blue if my memory serves me right. You can use one that is operational on the lock side.
The 3 signals correspond to driver door, front passenger door and the trunk locks. Since activating any one of them activate the pump you just need to use on of them, any one of 3.




Side note….i witnessed a drunk driver hit my neighbors car last night in a spot I normally would have had mine. I won’t be parking it at my apartment anymore and will have to travel back and forth to the 190e as time allows
Last edited by BetterDaze; Mar 25, 2024 at 03:24 PM.
Side note….i witnessed a drunk driver hit my neighbors car last night in a spot I normally would have had mine. I won’t be parking it at my apartment anymore and will have to travel back and forth to the 190e as time allows




My keyless unit is missing the button for the pneumatic switch smh….but everything else seemed straight forward. The unit is clicking but not affecting the doors at all
Last edited by BetterDaze; Mar 30, 2024 at 04:39 PM.




My keyless unit is missing the button for the pneumatic switch smh….but everything else seemed straight forward
You have to make a cut in the blue line as shown in the diagram remember, did you do that?. Blue line has to go thru the remote unit as shown.




Last edited by BetterDaze; Mar 30, 2024 at 05:18 PM.




You can cut the blue wire in between the 2 T connections you have on the posted photo but instead take the wire out of the original connector somehow.
I believe I took the wire out of the connector and created a harness off my own. But in the end the blue wire has to come from the car's harness go to the orange/black of the wireless and the white from the wireless has to go to the pump where the blue wire was.
Also make sure those are not switched around. Double check the diagram.
Basically, that blue wire needs to go thru the wireless unit. It will be using the input from the lock mechanism and also driving the lock mechanism.




Thanks for reiterating I didn’t want to rip the blue out of the plastic connector but I see I have to. I will double check
Last edited by BetterDaze; Mar 30, 2024 at 10:30 PM.




White needs to go to the pump and the black/orange needs to go to the door lock side. Can you not take the blue wire out of the socket without destroying it?
When you are all done with this and are happy with the results, go back to the same seller and purchase a second unit as back-up. You want to be able to just plug and play when/if this unit goes down and not mess with wiring again. If you do not want to loose the second unit, just place it next to the unit that is plugged in under the seat. That way you know where it is.



