xpressSTART Mercedes Solution2007-2012 Mercedes Benz S and CL Class

Tools you will need-T-25 Torx Driver-Panel Removal tool-3/4” Drill bit or unibit-Drill

The xpressSTART Mercedes Solution is designed as a direct plug in interface to the rear of the Mercedes Benz key cylinder. Please read this manual in it’s entirety prior to installation as there is a specific order of operation that needs to be followed.

Installation diagram

DIGITAL REMOTE START SYSTEM

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xpressSTART Wiring Overview

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xpressStart

Installation for S Class

1. Remove (4) T-25 screws from driver’s underdash panel2. Remove (2) plastic fasteners from driver’s underdash panel from either side of the brake pedal3. Lower driver’s underdash panel and disconnect underdash light connector4. Laying on your back in the footwell reach up to the rear of the EIS (key cylinder) and remove both

plugs, first the black (lower) plug, then the white (upper) plug5. Pull the harness containing those plugs down to the lower edge of the dash6. Take the ends of the T harness that match the ones you just removed and plug them into the rear of the

EIS7. Plug each 16 pin connector into the XPRESSSTART making sure to match each connector to the proper

plug8. Plug the remaining two connectors into the plugs you removed in step 4, white first, then black9. Drill a 3/4” hole to mount the valet switch into the corner of the removed under dash panel closest to the

center of the vehicle10. Mount the valet switch and connect it to the T harness11. Turn the valet switch on12. Start the vehicle with the key or keylessgo button to verify proper operation. If all is well, shut off the

vehicle13. Test the XPRESSSTART by pushing the panic button on the remote for less than one second14. Once you are satisfied with operation, find a location to mount the XPRESSSTART under the dash15. Tie up any excess length in the harness to avoid contact with moving parts16. Reinstall the under dash panel with the (2) plastic fasteners and (4) T-25 torx

Remove (4) T-25 Remove (2) fasteners

Disconnect light Remove plugs from EIS

Pull plugs to edge of dash Plug harness into EIS

Connect modules to harness Connect OEM wires

Drill hole for valet switch Reconnect light

reinstall (2) fasteners reinstall (4) T-25

Installation for CL Class

1. Open the cup holder in the center console and remove the two rubber stoppers by pulling them straight up. A pick tool may help you get it started.

2. Remove (2) T-20 Torx screws from below the stoppers3. Pull the cup holder straight up and set it aside4. Slide the ashtray toward the back of the car so you can tilt it up slightly5. Remove the power connector from the lighter socket and remove the ashtray from the console and set it

aside6. Using a panel tool, pry up on the vent above the clock to remove it from the cluster bezel.7. Remove (1) T-25 from under the vent you removed in step 68. Lay a towel or protective mat over the console to give you a place to set the HVAC panel once it’s

removed.9. Gently pry around the edges of the HVAC bezel to loosen the clips10. At the very bottom of the HVAC bezel is a steel bracket that is hooked around a piece of plastic. Reach

under the bottom edge and push up on the plastic while pulling down on the steel bracket to allow them to separate and release the lower edge of the HVAC panel.

11. Lay the panel face down on your protective mat and disconnect all the connectors. Set the HVAC panel aside

12. Remove (4) T-20 screws from the changer, remove the changer from the dash, unplug all the plugs and set it aside

13. Reaching through the changer cavity, unplug the 2 plugs from the rear of the EIS, starting with the black plug which is on the bottom

14. Follow steps 1-3 of the S Class manual to remove the driver’s under dash panel.15. Route the harness from the changer cavity to the driver’s under dash area.16. Route the XPRESSSTART harness up from the under dash area to the changer cavity.17. Plug the XPRESSSTART harness into the rear of the EIS.18. Insert the plugs into the XPRESSSTART matching the marks on the plug and the connector, “C1” and

“C2”,19. Plug the other end of the XPRESSSTART harness into the factory wiring, white plug first, then black.20. Follow steps 9-16 on the S Class section to power up and test the XPRESSSTART as well as

reassembling the under dash panel.21. Lay the HVAC panel face down on the protective cover on the console and reinstall all plugs into their

respective sockets.22. Snap the HVAC panel back into place on the dash making sure the metal bracket at the very bottom is

snapped past the plastic it hooks on to.23. Install (1) T-25 Torx screw at the top and reinstall the vent.24. Slide the ashtray back into place and connect the lighter socket power25. Reinstall the cup holder and the (2) T-20 Torx screws that retain it26. Reinstall the rubber stoppers that cover the screws

Remove rubber stoppers Remove (2) T-20

Remove cup holder Remove ashtray

Ashtray removed Pry up on vent

Remove vent Remove (1) T-25 torx

Pry out on panel Metal hook on bottom

Unhook plugs from HVAC Remove changer

Everything removed EIS plugs removed

Route plugs to bottom All plugs connected