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The frequently asked questions try to answer all common questions you might have about connecting devices to your Mercedes-Benz-Vehicle. Select a topic you are interested in and click on the question to see the answer or search for a phrase directly.
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General Questions
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Which mobile phones can I use in my new S-Class Cabriolet?
The compatibility list provides detailed information on compatibility and functions available for different mobile phone models.
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My authorised mobile phone does not reconnect automatically with the phone system.
Check on your mobile phone if another Bluetooth connection is already active and deactivate this connection. It may be necessary to restart your mobile phone.Some mobile phones require a confirmation prior to automatic connection. Check the settings on your mobile phone.Verify that your mobile phone is entered and authorised in the list of devices connected to your phone system. Follow the information in the operating instructions for your mobile phone selected from the compatibility list.
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After completing a search procedure, my mobile phone does not appear in the phone system’s device list. Why is this?
Ensure that Bluetooth is activated for your mobile phone and is visible to other devices (see the operating instructions for your mobile phone). Your mobile phone should be within range of the phone system. Restart the search procedure and follow the information in the operating instructions for your mobile phone selected from the compatibility list.
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Can I transfer an ongoing call to the phone system when I get into the vehicle?
Calls can be transferred (after a short delay) provided the phone system’s telephony function is active and your mobile phone is authorised.
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Why does the word “Unknown caller” appear in the display when there is an incoming call?
Possible reasons for this:The caller has chosen to withhold his or her caller ID.Displaying the caller ID via the vehicle system is not supported by all mobile phones.Some network providers do not support caller ID in conjunction with certain features (e.g. toggle, hold).
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The phone number but not the name of caller is shown in the display, even though the caller is stored on the mobile phone. Why is this?
The caller’s number is not stored in the vehicle’s directory. Follow the information in the operating instructions for your mobile phone selected from the compatibility list for details on storing directory entries from your mobile phone.
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Is it possible to toggle between calls in the vehicle or set up a conference call?
Both the toggle function and a conference call can be initiated via the mobile phone.
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Is it necessary to adjust the call volume on the phone system of my S-Class Cabriolet?
To ensure optimum hands-free quality for your mobile phone, it may be necessary to adjust the volume level on the phone system of your S-Class Cabriolet. The optimum level appears in the function list for your mobile phone under the heading “Audio settings”. Follow the information in the operating instructions for your mobile phone selected from the compatibility list to implement these settings.
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Do all Bluetooth Phones work with the Mercedes-Benz phone system?
There is no guarantee that all mobile phones are 100% compatible since Bluetooth has become a universal standard. For further information please select your vehicle and use the compatibility list to look up the features supported by your mobile phone.
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I was able to pair and use a Bluetooth phone with the MB phone system; however this phone was not on your compatible Bluetooth phone list, is this possible?
It's possible that a phone which is not listed may successfully pair with the MB Bluetooth, however, the connection and hands-free reliability cannot be guaranteed by Mercedes-Benz. Therefore we do not offer it as part of our compatible phone list.
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Why are the contacts of my iPhone not shown in my Mercedes-Benz phone system?
Probably the sychronisation is deactivated. You will find this option at your IPhone under Settings, General, Bluetooth, select your Mercedes-Benz phone system ("MB Bluetooth" or "MBUX") and select "more". "Sync Contacts" has to be switched on.
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Why is track information not displayed?
Check whether the track information is shown on the phone itself. The phone also needs to support transmission of metadata. If possible, avoid using special characters in the track details.
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Why is the SMS in the subfunctionline greyed out?
The SMS feature is only available if the mobile does support MAP (MessageAccessProfile). Please check the manual of your mobile.
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Why does't the vehicle show my contacts?
The access to the contacts has to be confirmed separately after the mobile is connected. Usually a popup or notification appears. Otherwise, please check the configuration for your vehicle in the Bluetooth list of your mobile phone.
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Why are the contacts from my BlackBerry not shown?
The transfer of the contacts has to be approved, therefore uncheck the box "Include contacts" in the menu [options], [scurity], [encryption]. Check also that the transfer of the contacts in the Bluetooth menu is not deactivated to find in the menu [options], [Network] and [Connections], Bluetooth Connections, Options and select for the Contact transfer "All".
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Not all contacts are shown at my telephone system. Is there a possibility to extend the memory?
There is no possibility to extend the memory. You could select specific contact groups on your mobile phone to transfer only these groups. For more information how to create a group check your manual of your mobile phone.
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Why can I not change settings via my Telephone system via USSD-Code e.g. *123# or use GSM-Codes e.g. *31#?
Some mobile phones and telephone systems do not transmit those codes. In such cases those codes can only be entered at the mobile phone itself.
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Why I can't connect my phone to my telephone system?
Please check your bluetooth settings on your phone. For you phone "Phone audio" and "Phone Media" has to be ticked.
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Why are my contacts transferred incorrectly?
If you synchronized your contacts with services such as Outlook or Lotus Notes. it it can result in incorrect contact transfer to vehicles. Please consult the manual of your mobile phone or sync service.
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On the WebSite a feature is supported, but in my case this does not work at all.
In certain cases apps can influence to the Bluetooth compatibility. Therefore, make sure no such app is running in background. Apps can be stopped in the application manager. Alternatively, reset the mobile phone to factory settings completely before testing.
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I'm not able to authorise my Apple iPhone using NFC. What can I do?
Apple is using NFC technology mainly for Apple Pay. It is not possible to use NFC for functions such as Bluetooth pairing with an iPhone. If Apple Pay is set up in your iPhone, it may be activated by any NFC reader including the vehicle system. This does not mean that any form of payment is performed.
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My IPhone does not charge continuously. On the screen a message appears "please remove foreign objects". What can I do?
Due to the fact that the IPhone has a internal metal shield it may happen in case the mobile moves while driving this metal frame is detected as a foreign object and for saftey reasons charging stops. Make sure there are no metall objekts on the charging area, the mobile is centered and does not move.
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It's not possible to charge my mobile continuously due to over-temperature. What can I do?
The mobile phone is in control of the charging procedure. For safety reasons, the mobile phone stops charging while the temperature of the battery exceeds a certain temperature. Make sure there are no apps running in background, which drain and heat the battery additionally.
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I would like to use Apple Watch in my vehicle for calls and music streaming, but Bluetooth pairing fails.
AppleWatch Bluetooth functionality is designed for Bluetooth headsets, and not for pairing with vehicles. Just pair your iPhone instead.
Bluetooth Audio
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Music playback does not start after connecting the phone.
It may be necessary to start playback on the device itself or to start playback manually using the vehicle's system.
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Music playback does not work properly (interruptions, distortions).
This may be caused by the following: 1. The device is performing other operations and can therefore not transfer the music data correctly. Exit any other applications the phone is running. 2. Interference with other Bluetooth networks as well as W-LAN (WiFi) can impair playback. Please deactivate any W-LAN and other Bluetooth networks in your vicinity. 3. Your device is searching for other Bluetooth devices while playing music. Exit the Bluetooth menu in the device or deactivate the search for other devices.
Messaging
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Why do I not see my eMails at my telephone system?
It's necessary to activate eMail in your telephone system in the menu settings.
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Why are not all my eMails and SMS displayed in my telephone system?
Your telephone system downloads only your newest eMails and SMS.
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Why are my text messages not displayed on the telephone system using my iPhone?
In Bluetooth settings on the mobile phone it's necessary to activate "Show Notifications" and a reconnect is required.
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Why can I not send a text message (SMS or iMessage) using my telephone system?
This feature is not supported by iPhones before iOS13.
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Why can I not delete a text message (SMS or iMessage) using my telephone system?
This feature is currently not supported by iPhones.
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Why are my text messages not shown on my telephone system using my Android Smartphone?
Many smartphones require a confirmation of contact and message access seperately after authorisation. This has to be done on your mobile phone and can be saved for further use. Depending on your telephone system, these requests can show up within several minutes after connecting the mobile phone.
Bluetooth (SAP) telephone module/handset
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I am using the Bluetooth (SAP) telephone module for the first time in this vehicle. What do I need to do?
Connect the Bluetooth (SAP) telephone module to the contact plate in the centre console. Switch on your vehicle's ignition. Please refer to the instructions provided with the Bluetooth (SAP) telephone module and the Owner's Manual for your vehicle.
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What equipment do I need if I want to use the Bluetooth (SAP) telephone module on board?
You need the optional extra "Convenience Telephony" and an active SIM card or a compatible mobile phone which supports the Bluetooth profile SAP (SIM Access Profile). For further information go to the Convenience Telephony section of this web portal and click on Bluetooth (SAP) telephone module, or contact your Mercedes-Benz partner.
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Can I use the Bluetooth (SAP) telephone module from my current Mercedes-Benz vehicle in another Mercedes-Benz?
There is no express guarantee that Bluetooth (SAP) telephone modules from previous model series will function in other models. For further information go to the Convenience Telephony section of this web portal and click on Bluetooth (SAP) telephone module, or contact your Mercedes-Benz partner.
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Which mobile phones can I use with the Bluetooth (SAP) telephone module in my Mercedes-Benz?
For an overview of mobile phones that are compatible with the Bluetooth (SAP) telephone module go to the Convenience Telephony section of this web portal and click on Bluetooth (SAP) telephone module, or contact your Mercedes-Benz partner.
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Can I transfer an ongoing call to the on-board system when I get into the vehicle?
Calls cannot be transferred as the system deactivates the mobile phone's transceiver unit while the Bluetooth SAP connection is active.
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Why does the phone number of the caller appear in the display but not the name?
The phone number and name of the caller are not saved in the on-board phone book or are not identical.
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Once the Bluetooth SAP connection has been terminated, where should I look on my mobile to find the text messages I received on board?
The Bluetooth (SAP) telephone module saves received text messages on the connected mobile's SIM card. Depending on the mobile phone used, it may only be possible to access this memory via the relevant menu function. See the user guide for your mobile phone for further details.
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Why have text messages stopped appearing on my COMAND/Audio system?
Once the SIM card's SMS memory is full, no further text messages can be received. Delete the text messages saved on the SIM card. Please note that the SIM card's SMS memory is very limited.
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Once the Bluetooth SAP connection has been terminated, why don't the calls that were made on board appear in the calls list on my mobile?
Because the system deactivates the mobile phone's transceiver unit while the Bluetooth SAP connection is active, calls are not logged on the mobile phone.
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How can I transfer my contact data from my iPhone when using SAP-V4 with SIM-card?
Some phones do not support direct sending of contact data via Bluetooth. You can transfer your contact data (vCards) of your mobile phone using special apps (e.g. MCBackup) by email to your PC. Then save them on a SD-card or USB-stick and import them permanently to your COMAND-System.
Apple CarPlay™
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Which iPhones support Apple CarPlay™?
Apple CarPlay™ is supported in principle by iPhones that have a Lightning connector, that is all iPhone models from iPhone 5. Apple launched iPhone 5 in 2012.
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Are iPads and iPods supported?
No. Apple has developed Apple CarPlay™ exclusively for iPhones.
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Which operating system version is required for Apple CarPlay™?
Officially, Apple CarPlay™ can be operated under iOS 7. However, Mercedes Benz supports Apple CarPlay™ from iOS 8.3. Apple is constantly working to improve Apple CarPlay™, and to increase its range of functions. Therefore, Apple recommends you always use the latest version of iOS.
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Do I need to prepare my iPhone for Apple CarPlay™?
No. If you have at least a 5th generation iPhone with iOS 8.3 installed, Apple CarPlay™ is directly available in the default settings. To start Apple CarPlay™ in your vehicle, you only need to connect your iPhone to the corresponding USB port of your vehicle using a certified Lightning cable (e.g. the white cable provided by Apple). Then follow the instructions on the screen.
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Do I need to install specific apps from the App Store for Apple CarPlay™?
No. All apps you already use on your iPhone will be displayed automatically in Apple CarPlay™ if they are compatible. Apps such as news, maps, and telephony are generally available on the iPhone. Of course, you must download an app from the App Store, if this is not already installed on the iPhone. However, it is generally not necessary to configure the downloaded app.
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Does Apple CarPlay™ display all apps installed on my iPhone?
No. Unlike iPhone, Apple CarPlay™ only displays apps that are compatible with it. The apps are specified by Apple. Mercedes Benz has no direct influence on the number and kind of apps displayed, with a few exceptions.
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Does Apple CarPlay™ require a mobile internet connection?
In principle, no. However, a mobile internet connection is strongly recommended in order to take advantage of all features of Apple CarPlay™. The usability is severely restricted without a mobile data connection.
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Does Apple CarPlay™ always require a cable connection?
Mercedes Benz will continue to improve the integration of Apple CarPlay™. Currently, unless otherwise specified, Apple CarPlay™ is only available via a cable connection.
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How do I quit Apple CarPlay™?
In some systems, you can quit Apple CarPlay™ directly via the user interface of your multimedia system. Please refer to the operating instructions for more information. You can always quit Apple CarPlay™ by disconnecting the cable.
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Why does Apple CarPlay™ require a mobile internet connection?
Apple CarPlay™ is heavily reliant on voice control with SIRI. SIRI works only with an active internet connection. SIRI is a prerequisite for using Apple CarPlay™. Of course, Apple CarPlay™ can still be used if internet connection is temporarily not available. However, functions may be significantly limited (no route calculation in Apple Maps, no SIRI voice control, no audio streaming of media from the internet.)
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Why does Apple CarPlay™ not start?
This can be caused by various reasons. First, please check whether Apple CarPlay™ is enabled on the iPhone. The setting can be found under “Settings” --> “General” --> “Restrictions” on the iPhone. The entry "CarPlay" should always be enabled. We also recommend disconnecting and reconnecting the iPhone cable connection. Using a different cable may also help. Restarting the iPhone could also solve the issue. In rare cases, it has also been observed that the so-called "managed devices" prevent Apple CarPlay™ from starting. This is often the case with business phones that are provided and configured by a company, with various settings that are predefined, and cannot be changed by the user.
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I generally have problems using Apple CarPlay™ or some apps.
In principle, we recommend terminating the connection, restarting the iPhone, and then connecting it again. If only specific apps are affected, it is sometimes helpful to close and reopen the app on the iPhone. Please note that Mercedes Benz itself has no influence on the content of the apps, nor on their display. Important information: Using iPhones while driving is prohibited in many countries. The driver is responsible for compliance with local laws.
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Is Apple CarPlay™ available worldwide?
Mercedes Benz cars that support Apple CarPlay™ generally provide the necessary interface. Mercedes Benz has no influence on the availability of Apple CarPlay™ itself in specific countries. Please check with Apple if Apple CarPlay™ is available in your country.
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What is the role of SIRI in Apple CarPlay™?
SIRI is Apple's proprietary voice assistant. It plays a central role in Apple CarPlay™. When using Apple CarPlay™, you will notice that some apps invoke SIRI directly to retrieve content using speech. You can invoke SIRI anytime using the always available voice control button, and operate your iPhone by voice, without the need to take your hands off the wheel or your eyes off the road.
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Is data transmitted from the vehicle to the iPhone while Apple CarPlay™ is active?
Certain information from the vehicle is required in order to run Apple CarPlay™. In order to use Apple CarPlay™, you need to consent to data transfer to the iPhone before starting Apple CarPlay™. Mercedes Benz respects your privacy, and only transmits data that is necessary for the optimal operation of Apple CarPlay™. For further information, please refer to the manual of your vehicle.
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Is it possible to control vehicle functions using Apple CarPlay™ or SIRI?
No. Apple CarPlay™ has no access to internal vehicle functions. For example, it is not possible to control the radio or the AC using Apple CarPlay™. Likewise, Apple CarPlay™ has no access to your vehicle’s driving features, so that, for example, you won’t be able to use it to manage cruise control. Apple CarPlay™ is a technology that has been integrated into the vehicle to provide the driver with access to iPhone content while driving, and not to access vehicle functions on the iPhone.
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Is it possible to use Apple CarPlay™ in parallel to existing vehicle functions?
In principle, yes. You will be able to access vehicle settings, radio, and other applications from the multimedia system while an Apple CarPlay™ connection is active. In some systems, however, some functions must be deactivated while Apple CarPlay™ is being used. Mercedes Benz will continue to improve the integration of Apple CarPlay™ so that all functions will be available in the future.
Android Auto™
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Which Android telephones support Android Auto™?
In principle, there is no restriction on the Android telephone used. The availability is governed by the installed operating system on your Android telephone. Please note that Mercedes Benz has no influence on the availability of Android Auto and the operating system on your Android telephone.
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Which OS version is required for Android Auto™?
Officially, Android Auto™ is available with Android 5.0 Lollipop. Google is constantly working on expanding the features and enhancements of Android Auto™. Therefore, Google recommends always using the latest version of Android.
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I'm connecting my Android telephone to Android Auto™ for the first time, but Android Auto™ will not start. Why?
When an Android telephone is connected for the first time, Android Auto will not start automatically. Please start Android Auto™ in the corresponding interface of your multimedia device by selecting the displayed device name. Then please follow the instructions on the screen. You will find more information in the manual of your vehicle.
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Do I need to prepare my Android telephone for Android Auto™?
No. If you have at least Android 5.0 Lollipop installed, you only have to connect your Android telephone to the multimedia system with a suitable USB cable. Your device will then be displayed in the corresponding menu via the user interface of your multimedia system. Select it to launch Android Auto™. When the Android Auto is started for the first time, any needed files or applications are downloaded from the Internet. We therefore recommend that you have a good Internet connection and enough data space on your Android telephone the first time you start up.
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Do I have to install special apps from the Google Play Store for Android Auto™?
No. Any apps you already use on your Android telephone will automatically appear in Android Auto™ if you're compatible with Android Auto™. When starting Android Auto™, your Android telephone also checks whether the necessary files are available and current. Standard apps like news, Google Maps and telephony are always available on the Android telephone. Of course you need to load an uninstalled app from the Google Play Store if you want to use it in Android Auto. A special configuration of the downloaded app is generally not necessary.
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Will all apps appear on my Android telephone in Android Auto™?
No. Unlike the Android telephone, Android Auto™ only displays apps that are compatible with Android Auto™. This is determined by Google. Mercedes Benz has no direct impact on the number and display of the apps, with a few exceptions.
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Does Android Auto™ require a mobile Internet connection?
Generally no. However, a mobile Internet connection is highly recommended to use all the features of Android Auto™. Usability is greatly restricted without a mobile data connection.
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Is a cable connection always required for Android Auto™?
Mercedes Benz will continuously improve the integration of Android Auto™. Currently, Android Auto™ is only available via a wired connection, unless otherwise stated.
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How do I close Android Auto™?
In some systems, you can disconnect the Android Auto™ connection directly from the interface of your multimedia system. Additional information can be found in the operating instructions. In all cases, Android Auto™ will disconnect when you disconnect the cable.
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Why does Android Auto™ require a mobile Internet connection?
The operation of Android Auto™ is designed for voice control. Google's voice control system only works with an active internet connection. Google's voice control system is a prerequisite for Android Auto™. Of course, if you temporarily have no internet connection, Android Auto™ can still be used. However, then significant limitations are to be expected in the functionality (no route calculation in Google Maps, no Google voice control system, no audio streaming of media from the Internet)
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Why is Android Auto™ not starting?
This may have various reasons. Please note the general information that Android Auto™ does not start automatically on first startup. You will find more information in the manual of your vehicle. First of all, you should make sure that all requirements for using Android Auto™ are met. Check the operating system version and make sure that there are currently no updates for the operating system and installed applications. It has also proven to be helpful to disconnect that device from your multimedia system and reconnect it. Please also check whether the correct USB port was used for the Android device. It may also help to use a different cable.
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I generally have problems using Android Auto™ or some apps?
We generally recommend disconnecting, restarting the Android telephone, and then reconnecting the device. If individual apps are affected, it may occasionally be helpful to close and reopen the app on the Android telephone. Please note that Mercedes Benz itself has no influence on the content of the apps, nor on the presentation of an app. Important note: Operation of the Android telephone is prohibited in many countries while driving. The driver is responsible for compliance with local laws.
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Is Android Auto™ available worldwide?
Mercedes Benz vehicles that support Android Auto™ generally provide the interface to Android Auto™. Mercedes Benz has no influence on the availability of Android Auto™, even in individual countries. Please check with Google if Android Auto™ is available in your country.
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What role does the Google voice control system play with Android Auto™?
The Google voice control system plays a central role in the use of Android Auto™. When using Android Auto™, you'll notice that some apps directly access the Google voice control system to query content by voice. At any time, you can operate the language control button, Android Auto, by voice that is always available in the vehicle as part of Google's functions. This will allow you to stay focused on traffic without having to take your hands off the wheel or your eyes off the road.
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When Android Auto™ is active, is data is sent from the vehicle to the Android telephone?
Certain information from the vehicle is generally necessary to operate Android Auto™. To use Android Auto™, you must agree to share the data with the Android telephone before starting Android Auto™ for the first time. Mercedes Benz respects your privacy and only shares the data necessary for the optimal operation of Android Auto™. You will also find more information in the manual of your vehicle
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Can I control vehicle functions with Android Auto™ or the Google voice control system?
No. Android Auto™ has no access to internal vehicle functions. Android Auto™ for example cannot control the radio or your air conditioning. Android Auto™ also does not have access to the driving features of the vehicle so you can use it, for example, to control the cruise control. Android Auto™ is a technology that has been integrated into the vehicle to allow the driver to access the Android telephone content while driving and not to access the vehicle's features via the Android telephone.
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Can Android Auto™ be used at the same time as my existing vehicle functions?
Generally yes. You will still be able to access the vehicle settings, radio and other applications from the multimedia system while the Android Auto™ connection is active. However, in some systems features may need to be disabled while using Android Auto™.
Internet
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I'm not able to receive data with COMAND Online. What can I do?
Please check if your phone is approved for COMAND Online (Internet usage). The contract with your network provider must also allow the option of using data communication. Furthermore, your network provider has to allow "Tethering" - connecting to the internet via a mobile phone.
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While I'm making a phone call, I can't use the internet services from COMAND Online. What can I do?
Using speech and data transmission in parallel depends on your mobile phone and your network provider. The pre-requisites are the appropriate network infrastructure and 3G reception (UMTS). Please check the corresponding display on your mobile phone.
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What amount of data is transferred while using COMAND Online?
Data volume is optimized for mobile transmission (e.g. compression of images). However, it's not possible to give a general statement about data traffic volume.
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Is it possible to use my Android mobile with COMAND Online?
For some vehicles and Android phones it is necessary to install a third-party app like BlueDUN which is downloadable in your Google PlayStore. A freeware version of this app is available, too. Please deauthorise the mobile after installing the app and authorise it again.
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Why is it not possible to access the Internet using my iPhone?
It could be that your Provider does not allow "tethering", means to use your mobile as a modem. For more Information contact your provider.
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