Operation CHARM: Car repair manuals for everyone.

Telephone Systems






Telephone Systems

General Information

Only cellular telephone preparation is available in the US and Canada.

The cellular telephone preparation is available only with a radio/radio-navigation system

It is possible to retrofit telephones (cell phones) in a vehicle with cellular telephone preparation.

If the vehicle has cellular telephone preparation, then the Cell phone operating electronics control module (J412) is already installed at the factory.

Only one adapter is needed for the Telephone baseplate (R126). It depends on which cellular telephone is going to be used (does not apply to US vehicles).

The entire system, including the cellular telephone is installed in vehicles having a telephone system.

Cellular telephone preparation UHV Low and UHV Premium Light became available beginning with MY 2009.

The cellular telephone preparation UHV Low is also known as universal cellular telephone preparation Low with a baseplate inside the center console.

Bluetooth for the cellular telephone is not supported. The telephone baseplate controls the telephone. The Telephone antenna (R65) is connected to the telephone baseplate.

The cellular telephone preparation UHV Premium Light is also known as the universal cellular telephone preparation Premium Light with Bluetooth technology and an optional telephone baseplate inside the center console. The telephone antenna is connected to the cellular telephone preparation.

The UHV Premium Light is a fixed installation telephone without a wire connection; telephone data is stored via Bluetooth to the cellular telephone registered to the vehicle.

The UHV Premium Light requires the phone to have a Bluetooth interface and it must support the Remote SIM Access Profile (rSAP).

With rSAP, telephone entries, for example, can be accessed on the cellular phone SIM card.

For additional information, refer to the Owner's manual.

Troubleshooting

Telephone systems are equipped with On Board Diagnostic (OBD) capabilities.

Use the Vehicle Diagnosis, Testing and Information System (VAS 5051B) under "Guided Fault Finding".