Under certain conditions it is necessary to set call volume and media volume on your mobile phone to maximum to get the best sound quality in your vehicle. In order to prevent problems, it is also recommended that the ring tone setting "Change with buttons" (under "Sounds and Haptics") is left switched off.

In order to use your vehicle's message functionality (text message and iMessage), perform the following steps:
In the Bluetooth device list on your iPhone select the item (i) for your vehicle ("MB Bluetooth" or "MBUX"). Activate the item "Show messages" there. The message functionality is at your disposal in the vehicle following reconnection.

Please note our information on which software versions of your mobile phone have been tested and thus released for use in your vehicle.
Installed apps, software updates, phone settings as well as a high use of the main memory and storage space of the phone can affect functionality and cause problems.


The telephone's characteristics may adversely affect sound quality.

The holder A2128201751 (previous number A2128201251) has no audio cable to connect audio functions on board.
The holder A2128201551 (previous number A2128201051) can be connected to Media Interface (Code 518) or iPod Interface kit for using audio functions on board (additional installation of cable necessary).

Not in conjunction with:
model series 169 (A-Class) form 06/08 - 09/08
model series 245 (B-Class) form 06/08 – 09/08
model series 230 (SL-Class) from 04/08 - 09/08
model series 171 (SLK-Class) from 04/08 - 09/08
model series 219 (CLS-Class) from 04/08 - 09/08
model series 211 (E-Class) from 06/08 - 09/08
model series 463 (G-Class) from 08/08 - 11/08
model series 164 (ML-Class and GL-Class) from 06/08 -12/08
model series 251 (R-Class) from 06/08 -12/08
CLC-Class from 09/08 - 10/08

Display contacts from SIM card:
SIM card entries must be copied to the internal phone memory first.


Approved phone software versions: OS4.0.1, OS4.2.1, 4.3, OS 5.0.1, OS 5.1, iOS 6.0, iOS 7