- Mercedes-Benz C-Class: How to Install Compustar Remote Start
Step by step instructions for do-it-yourself repairs
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DIY : MB204 Compustar Remote Start Install
As i promised here is a DIY on how to install the FT-MB204-DC Remote start module.
First i want to thank the user "myinternetsucks" for posting some things that definetally helped out with the installation.
http://www.harborfreight.com/4-piece...set-66836.html
http://www.harborfreight.com/5-piece...set-67021.html
Here is the installation guide for the "Brains" of the unit. (This will get you the remote start off the Panic Button from your factory keys and gives you an extra accelerometer (motion/bump sensor) within the unit.)
Firstech Mercedes DC MB204
Install Guide Here:
http://www.compustar.com/dealersuppo...stallation.pdf
Bare with me as this is my first DIY
Installation Time : 30 Minutes
Level Of Difficulty 1-10 (5)
#1 On the bottom footwell under the dash you need to remove 3 t-20 screws. You can just leave it unscrewed for now, you will utilize this at the LAST step.

#2 using your interior trim removal tool, from the top working your way to the sides you want to pry the bezel from your cluster. and pull OUTWARDS

#3 set the streering wheel at the maximum out, as well as on the full down position.

#4 Remove the steering wheel boot, push the two tabs in
wards and then down.

#5 pull the boot all the way towards you so reveal the EIS wiring.


#6 unplug the harness connected into the EIS

#7 take off the white shroud from the plug, what i did is stick a small screwdriver in between the white and black parts of the harness to loosen it up and pull the black part out while holding the white. (or you can use the EIS removal tool, and picks that are from harbor freight)

#8 Install the white shroud onto the black harness on your compustar unit. Arrow on the black harness facing inwards to the shroud

#9 install the blue shroud that came with the compustar unit on the EIS harness. Arrow on the black harness facing inwards to the shroud


#10 Snake the wires from the bottom of the dash and pull up, you should only be pulling the white & blue sensor at this time. I used the bigger portion of the harness to snake everything down to make it easier.

#11 Connect the white harness into the EIS

#12 Connect the two blue harness together until you hear a click.

#13 Start your car - verify everything was plugged in correctly.

#14 Put back your top steering wheel boot cover.

#15 Put back in your cluster dash trim. there is a black tab on the right hand side that should be put in first. then snap in.

#16 connect the white harness into the compustar brain unit on the bottom of the dash.

#17 Programming time. Turn your key into the on position (1click) 5 times within 7 Seconds, After that you want to remove your key and press the lock button once. You will see your hazards flash. Step outside of your car, lock the door and press panic button ONCE, your car should now start.

#18 My car didn't start? check your valet switch - flip it the other way and now step back outside your car, lock the door and press panic once. Vrrooom!

#19 I didnt mount my valet switch because i won't use it, i zip tied the harness together tightly, and tucked it into the center console carpet with some doubble sided tape.
#20 Install the 3 screws back into the under dash

#21 Box up the unused harness, and store for resell later.

#22 Last test before i go inside and drink some beer!
Hope this has helped you guys, I know compustar had directions but wanted to provide my first hand experience to the forum. If you have any questions feel free to ask. You assume everything you do at your own risk.
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for about $95. Should be plug & play with the unit.
I can't find the compatible remote kit model numbers. Anyone? :/
Last edited by benzdude; Nov 20, 2013 at 05:31 PM.












