It's not a CA key. It would have a removable battery door on the back of the key. Your key is pre- push button start. My CA 550 has the battery door, my brothers nonCA 328 sport does not.

 

THANKS FOR THE REPLY, SO THIS MEANS I NEED TO GET A NEW KEY PROGRAMED INTO MY CAR. DO YOU KNOW IF I CAN GO FROM A NON CA TO A CA? THANKS

 

Well it all depends if your car does have the CA Module and the antenna. CA is not standard on these cars and it is an added option. So here is what to look for you can see it not a simple thing. BTW- if your car is not equipped with CA when was built you CANNOT add it later on and it is not just matter of programming!


-Control Unit
The Comfort Access control unit is located at the rear right of the luggage compartment. Comfort Access controls the transmit antennas for the exterior and interior.
The signals from the outside door handle electronics modules are read in and trans- ferred via the CAS bus to the Car Access System 3.

-ID Transmitter
The ID transmitter for Comfort Access must be actuated by means of a radio signal. The ID transmitter is therefore equipped with a receiver for the coded 125 kHz radio signal that is transmitted by the outside door handle electronics module. The radio signal enables the ID transmitter to register with the vehicle (authentication).
For this purpose, the ID transmitter emits a coded 868 MHz high-frequency signal to enable identification of the ID transmitter as being valid and belonging to the vehicle.
The ID transmitter is exclusively responsible for use of Comfort Access.
The ID transmitter for Comfort Access has a battery, representing the externally identifi- able difference compared to the remote control which features an integrated recharge- able battery. The service life of the battery in the ID transmitter is about 2 years.
Voltage Monitoring
The ID transmitter monitors its own battery voltage. The battery voltage is monitored in 2 stages.
The first stage signals to the Car Access System 3 that the battery is flat. In response, the Car Access System 3 generates a check control message. The check control message informs the customer that the battery needs to be changed.
If the battery is not changed, the voltage monitoring facility switches to the second stage. This means that the data in the ID transmitter are saved. The ID transmit- ter is then set "inoperable".
Data for Conditioned Based Service
When terminal status "terminal 15 ON" is selected, data for the Conditioned Based Service is transferred to the ID transmitter using the interior antennas. The ID transmitter then confirms that the transmission was received.

-Antennas for Comfort Access
Nine antennas are built in for Comfort Access.
Four of these can be found in the outside door handle electronics modules and five in the vehicle interior/luggage compartment.
The antennas for the exterior and interior are inductive antennas and have a ferrite core The antenna transmission frequency is 125 kHz. All messages that are sent via the antennas are encrypted.
Antenna Installation Locations Exterior Antennas
The exterior antennas are installed in the following locations on the E70: ? Front and rear driver's side outside door handle electronics ? Front and rear passenger-side outside door handle electronics
The antenna characteristic gives 2m of coverage around the vehicle.
Interior Antennas
The interior antennas are installed in the following locations on the E70: ? Passengercompartment,front
? ? ?
Passenger compartment, center Luggage compartment, left and right Luggage compartment, near to the load edge, middle.
The antenna characteristic is spherical. The entire vehicle interior is covered by the front and middle antennas.
Luggage Compartment Antenna
The luggage compartment antennas are of the same design as the interior antennas. The antenna characteristic is configured so that the antennas in the luggage compart- ment cover that whole area.