BMW Questions? Ask a BMW Repair Expert for Answers.
Since the key did not work you will have to have it hooked up to diagnostics in order to see if the EWS is releasing the start code. Many times when a vehicle sits without a battery the DME & the EWS control unit can loose their alignment with eachother and will have to be re-aligned.
Either way the only way to find this out or if it is another problem with the EWS system is to have it hooked up to diagnostics.
Loosing the alignment is the most common cause.
Is it possable the keys have to be reprogramed
But there are a lot of other components in the EWS system such as the antenna pickup, the send & receive modue and the EWS control unit itself.
No I doubt very much the keys have to be programmed.
You cannot program the key code into the key, it comes from the factory coded.
Do you know the procedure is? I have read several different ways but not sure if there correct.
Most of the say I need to use the door lock button but I dont seem to have one.
That programming is just the remote functions of the key, it has nothing to do with the key code itself.
These keys cannot even be programmed at the dealer they come from the factory coded for the vehicle as far as the EWS system goes.
The procedures you are reading about have nothing to do with the vehicle not starting, it is ony for the remote functions for locking & unlocking the doors.
Maybe I mean when they get matched to the car or re-fobed, not sure if im using the correct terms.
Ok will check the EWS next
Thank you very much,
I will always leave positive feedback all I ask is for the same.