remote start on mercedes e320; spoof ir?

i am aware that mercedes with the infrared smartkey starter are basically impossible to set up remote starts on, simply because the car needs to receive that special infrared signal to unlock the car before the engine can be started, IN ADDITION to the radio transponder signal. however, what if you just straight up spoofed the IR signal? pop open the ir housing of the door, code a little arduino to just record signals from the control board attached to the ir detecting diode. then code said arduino to replay that recorded signal whenever a certain line in is energized other than that it works like any old key-in-the-dash starter, except with one extra wire going to this ardunio that energizes when it gets the remote start signal could this work? impossible is nothing; use a breakout board.

by the way, i'm referring to basically any mercedes e320 from 1998 to 2003 or so. i believe they got rid of the IR system shortly thereafterimpossible is nothing; use a breakout board.

You might be able to try any universal infrared remote (for TVs etc) with a learning facility. If they record the actual signal (as opposed to converting it to some "Standard" code) it should work unless rolling codes are used (and assuming suitable infra-red frequency).

oldspark wrote: You might be able to try any universal infrared remote (for TVs etc) with a learning facility. If they record the actual signal (as opposed to converting it to some "Standard" code) it should work unless rolling codes are used (and assuming suitable infra-red frequency).

the trick is recording the signal in some way that it's easy to "play back" to the starter circuit when you're starting the car. the play-back would need to be behind the infrared detector in the door but in front of the starter circuit. hence an arduino there might need to be a staggered thing where it does the IR door unlock and THEN starts the car maybe a second later.impossible is nothing; use a breakout board.