Instructions For S Class - Firstech FT-MB221-DC Installation Manual

Mercedes 2007 cl class; mercedes 2008 cl class; mercedes 2009 cl class; mercedes 2007 s class; mercedes 2008 s class; mercedes 2009 s class

Table of Contents

Data Controller (DC)

Remote Start for Mercedes

2007 - 2009 CL and S Class

Everything removed

Route plugs to bottom

Instructions for S Class

1. Remove (4) T-25 screws from driver's underdash panel.

2. Remove (2) plastic fasteners from driver's underdash panel from either side of the brake pedal.

3. Lower driver's underdash panel and disconnect underdash light connector.

4. 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) plug.

5. Pull the harness containing those plugs down to the lower edge of the dash.

6. Take the ends of the T-Harness that match the ones you just removed and plug them into the rear of

the EIS..

7. Plug each 16 pin connector into the Mercedes DC making sure to match each connector to the

proper plug

8. Plug the remaining two connectors into the plugs you removed in step 4, white first, then black

9. 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 vehicle.

FT-MB221-DC Installation Guide

EIS plugs removed

Table of Contents

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