2005 C230 Kompressor Sport, 2004 SL500
I replaced my key shell. The door locks and alarm works fine, but the key wont start the car. What did I do wrong? G oing to see if I can go back to the old shell.
Thanks, emitter is working. I must have screwed up the electronics. I was extra careful. This is one expensive lesson. Thanks for the info.Sounds like you may have broken the key so the IR emitter doesn't work. Use a digital camera or camcorder to see if the IR emitter is working. Camera CCD's can "see" IR light. Verify this by aiming your TV remote at the camera lens and pressing button. You should "see" the IR emitter light up. Now, point the key at the camera's lens and press the unlock button to see if the IR flashes. If not, then you have broken the IR emitter. If it does, then you broke the key's electronics. If just the emitter is broken, you may be able to fix it if you're handy with a soldering iron. If not, then the key is no good, except for RCL.
There is a guy named drknight who offers an Ebay service to repair keys who might be able to resurrect this for you.Thanks, emitter is working. I must have screwed up the electronics. I was extra careful. This is one expensive lesson. Thanks for the info.
Emitter working when button is pushed means the IR car unlock/lock circuit works.If the emitter is working, but the key is not recognized, that means that is rolling code has become de-synchronized and there's no way to fix that. Swapping the key's chip to another key won't work - it will still be sending the wrong sequence rolling code stored in its chip.