It could be batteries in the remote when it does not work, hold the key in front of a digital camera where you can press a button and see the beam
Do you have a spare key,,I have fixed 5 keys this week for members as they cost some £200 each
Can I add myself to this list of members? As of this morning, my key opens and locks the doors, but it does not work in the ignition -I don't get the 'click' sound and the barrel doesn't turn.
The spare key works and starts the car fine.
The car is a MY04 W211 E320cdi
In an earlier post I said my main key opened and locked the doors but did not 'unlock' and start the ignition but the spare key did.
NOW, the spare key does not open the doors anymore - it only starts the ignition.
As of this morning I have to go out with both keys; one to open the doors and one to start the ignition!
What's going on???
Thanks for replying. I can see the infrared beam on both remote keys via my camera.
I'll try changing the batteries anyway and see what happens...
Thanks for the reply Malcolm, I have an old (working) key fob belonging to a W202 C class. Do you think any parts from that would be useful to help fix my W211 key?
It gets stranger - Over the weekend, I noticed that after a long drive with the 'spare' key in the ignition, it started opening the doors OK and has been fine since.
The 'main' key still has original fault though i.e. opens doors but not ignition.
Please send me postal details as per PM if you think you can help.
I hope you don't mind me jumping in here. I have a problem with my remote as well.
I drive a C36 AMG 1996 and a few weeks ago the red and green lights started flashing in the rear view mirror. I replaced the batteries and it worked fine for about 2 weeks then started flashing red and green again. I bought another set of new batteries and the remote worked fine again for another week. This time the rear view mirror didn't respond at all to the remote so I went in through the passenger door and tried to start the car. The car wouldn't start as the immobiliser had kicked in. So I bought another set of batteries for the remote and resynchronised the remote and it worked for a few days but then today the red and green lights started flashing again!
This is my third set of batteries in 1 month. Is my remote broken?