Quote:
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:
• Passenger compartment, 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
|
Each handle has an antenna...if the handle electronics fail, the key fob will not work 'around/near' that antenna...