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FT-MB164-DC Installation Guide
Data Controller (DC)
Remote Start for Mercedes
2006 - 2009 ML, GL, and R Class
www.compustar.com
888.820.3690
Copyright 2010 Firstech, LLC. | 2
Instructions
1. Remove the HVAC panel by pulling outward to release the lower clips. (pic 1)
2. Pull down on the panel to release the upper clips. (pic 2)
3. Remove the panel and place it to the left being careful not to scratch the console or the wood
grain front. For an R class, (pic 3) insert a panel tool on the left and right upper edges of the
HVAC panel and release the clips, then remove the panel by pulling out the top first then
pulling up on the entire panel to release the lower clips.
4. Locate and remove (2) T-20 screws from the aluminum bars showing just below the radio.
(pic 4)
5. Slide the bars downward until they stop. These are the radio retaining bars. (pic 5)
6. Slide the COMAND unit out from the dash to access the wiring behind. (pic 6)
7. Disconnect all wiring from the rear of the COMAND unit and place it in a safe place where it
cannot be damaged while you’re working on the vehicle.
8. Let the vehicle sit for 2 minutes with the doors open to allow the CAN network to shut
completely down before going any further.
9. Reach through the radio cavity and locate the rear of the EIS module. The EIS is the key
switch.
10. Release (2) connectors from the EIS and pull the harness out through the radio opening for
easy access. It is important that you disconnect the lower (black) plug first. (pic 7)
11. Make sure the Valet switch is off or disconnected. (pic 8)
12. Plug the (2) male ends from the T-Harness that match the plugs you just
removed into the rear of the EIS module. (pic 9)
13. Plug the connectors into the Mercedes DC control module.
14. Plug the (2) female connectors from the control module into the factory wiring you
accessed in step 9. It is important that you plug the white connector in first. (pic 10)
15. Once ALL connections are secured, turn on the valet switch and verify the LEDs visible inside
the Mercedes DC are flashing.
16. Start the vehicle with the key or with the push button to verify your work. If the vehicle starts
and runs, you’ve made all the connections correctly.
17. Shut the vehicle off.
18. Push the ‘Panic’ button once on the factory remote to test the remote start.
19. Once you are satisfied with its operation, shut the remote start off by pushing the
‘Panic’ button once.
20. Unlock the vehicle with the remote after shutdown
21. Locate a place to secure the control module in the dash cavity.
22. Secure the module in its final location.
23. Locate a place for the valet override switch. Recommended locations are the left wall of the
glove compartment or the driver’s underdash panel.
24. Drill a 3/4” hole in the desired location.
25. Route the wires for the valet switch through hole for the control module.
26. Plug the Valet switch in. Make sure the spade connectors are fully installed on the switch.