E60, E61, E63, E64, E87, E90: Snap-In Adapter On Base Plate

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 645Ci, 2005 BMW 545i, 2005 BMW 530i, 2005 BMW 525i, and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Installation location

The snap-in adapter is fitted to the base plate in the stowage compartment between the front seats.

Fig 1: Identifying E60, E61, E63, E64, E87, E90: Snap-In Adapter On Base Plate

Courtesy of BMW OF NORTH AMERICA, INC.

Construction The snap-in adapter is the connecting piece between the base plate and the engaged bluetooth mobile phone.

Fig 2: Identifying E60, E61, E63, E64, E87, E90: Snap-In Adapter On Base Plate Components

Courtesy of BMW OF NORTH AMERICA, INC.

SNAP-IN ADAPTER ON BASE PLATE COMPONENTS LEGEND

Key	Explanation	Key	Explanation
1	Connector wire	2	Hands-free button
3	Eject button for snap-in adapter	4	Eject button for bluetooth mobile phone
5	Snap-in adapter	6	Connector for GSM antenna
7	Charge voltage contacts for battery	8	Base plate

How it works The following connections are established to the bluetooth mobile phone at the snap-in adapter:

The bluetooth mobile phone is connected to the GSM antenna on the vehicle exterior via the GSM antenna connection.
The bluetooth mobile phone is connected to the battery charger via the charging contacts.

GSM antenna connection Connecting the bluetooth mobile phone to the GSM antenna on the vehicle exterior has the following advantages:

Radiation inside the vehicle is greatly reduced.
Transmission and reception conditions for the bluetooth mobile phone are greatly improved.

Recharging of battery in bluetooth mobile phone

The recharging of the battery is controlled by the charge management circuit in the ULF control unit. The charge management circuit in the ULF control unit sends a signal to activate the battery charger in the snap-in adapter (via the control wire). To recharge the battery in the bluetooth mobile phone, each snap-in adapter has an integrated battery charger that is specially configured for the matching bluetooth mobile phone.

IMPORTANT: Only recharge the bluetooth mobile phone for which the snap-in adapter is intended. The recharging process is specially configured for the selected bluetooth mobile phone. Other, "foreign" bluetooth mobile phones are not to be recharged in this snap-in adapter.

The bluetooth mobile phone battery is charged when the following conditions are satisfied:

Snap-in adapter engaged on the base plate
Bluetooth mobile phone engaged in the snap-in adapter
Terminal R ON (ignition lock position 1)
Voltage in vehicle electrical system between 9 and 16 volts