Frequently asked questions

General questions.

Frequently asked questions

General questions.

    The Mercedes me Adapter consists of hardware and software. The hardware, i.e. the Mercedes me Adapter, is inserted into the diagnostic socket (so-called "OBD2 socket") of the vehicle and subsequently connects to the smartphone by Bluetooth®. In this way, it is possible to read out information from the vehicle. A range of safety, service and mobility functions can be used via the Mercedes me Adapter app, based on the read-out data.

    The app is available free of charge from the Apple App Store and Google Play Store.

    Use of the Mercedes me Adapter is free of charge. The usual terms for calls to mobile or landline numbers apply when calling from the app. Fees may be incurred for downloading and data transfer, depending on the terms of the mobile-phone contract.

    You can use the Compatibility Check to check whether it can be retrofitted to your vehicle.

    The Mercedes me Adapter is available in the following countries:

    Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, Luxembourg, The Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland, United Kingdom

    Prerequisites for use of the Mercedes me Adapter:

    • Smartphone (iPhone or Android smartphone)
    • A Mercedes-Benz vehicle from one of the compatible model series
    • The Mercedes me Adapter app (available free of charge from the Apple App Store or Google Play)
    • A Mercedes me user account (register at for which the Terms of Use have been accepted
    • Mercedes me Adapter (exclusively available from your authorised Mercedes-Benz dealer)
    • Activation of the Mercedes me Adapter services by the Mercedes-Benz service partner after the customer presents a valid identification document and the registration certificate.

    The following data are transferred to the Daimler AG systems: vehicle identification number, mileage, fuel level, remaining time, remaining distance, workshop and service code, ignition status, control unit version number if applicable. Data transfer is necessary so that you or your co-users can receive details of the current vehicle status and suitable maintenance offers. Daimler AG does not use the transferred data to produce movement profiles. Location details (if available) are only transferred if you call Customer Support in the event of an accident or a breakdown. Personal data such as journey and refuelling lists are only saved on your smartphone and are not forwarded to the Daimler systems.

    The data read out from your vehicle via the Mercedes me Adapter and information saved by you are not synchronised with the Mercedes me portal. You can view the data in the Mercedes me Adapter app.

    A Mercedes me Adapter can be used in several compatible vehicles. To do this, the vehicle must be linked to your Mercedes me account by your authorised Mercedes-Benz dealer. It must be reactivated after plugging it into a different vehicle.

    Yes, you can use your Mercedes me user account for the Mercedes me Adapter.

    We take data protection into account when designing the networked services. Right from the start, we pay the highest level of attention to data protection during development of the systems and services.

    The car of the future is increasingly becoming a digital companion, which means that we must ensure data security as well as road safety and operating safety.

    Daimler AG does not produce movement profiles with Mercedes me services. We comply with all applicable laws on data protection, and even governmental authorities can only access the data within the bounds of the law.

    Furthermore, Daimler has a "Corporate Policy for Data Protection for Data of Customers & Partners" to regulate the processing of personal data, which is based on globally accepted basic principles and ensures a uniform and globally valid data protection and data security standard.

    Mercedes me services involve the acquisition of personal data as well as the generation of personal data. This happens on the basis of contractual arrangements or customer consent. The acquired data are saved in encrypted form. Furthermore, the customer can deactivate their Mercedes me Adapter services at any time.

    We use technical and organisational security measures in order to protect user's data against manipulation, loss, destruction or against access by unauthorised parties. The security procedures are continually enhanced as new technology becomes available.

    The Mercedes me Adapter is an accessory that has been tested and approved by Daimler AG (e.g. in crash tests and tests for electromagnetic compatibility). It offers you the highest security standard compared with non-MB products. There is therefore no risk of vehicle damage and loss of warranty as a result of using the Adapter.
    The Mercedes me Adapter enables many model series manufactured in 2002 or later to become an integral part of the Mercedes me networked world. The Mercedes me Adapter means that this is now also possible for as yet unconnected vehicles.
    You can obtain the Mercedes me Adapter exclusively from your Mercedes-Benz service partner – the associated app is available free of charge from the Apple App Store and Google Play. Furthermore, the Adapter's functions and services are being extended all the time and adapted to the needs and wishes associated with a sophisticated, networked driving experience.

Questions about the Mercedes me Adapter app

Questions about the Mercedes me Adapter app

    The app is available free of charge from the Apple App Store and Google Play.

    The app is available for the following smartphones:

    • Apple:  iOS 9 or later
    • Android: operating system version 5 or later

    Smartphones with root access or jail-broken smartphones are not supported for security reasons.

    After installing the Mercedes me Adapter app, you can already use a few limited functions. To use all of the app's functions, you must obtain and activate an Adapter. To do this, please consult a participating authorised Mercedes-Benz dealer.

    Each time a journey ends, a data package is sent to the Daimler AG systems. These data packages are not very large. They amount to no more than a few MB per month.

    Firstly, ensure that the Bluetooth® pairing with the Mercedes me Adapter was successful and that your smartphone is connected with the Adapter MB-xxxx. Your smartphone's Bluetooth® function must be activated for this. The Mercedes me Adapter must be within range. Furthermore, an Internet connection is required for the activation process. Should you nevertheless encounter problems when attempting to start the app, please contact Customer Support.

    If the Mercedes me Adapter has been unplugged, reactivation will be necessary. If you have uninstalled the app or are now using it on a different smartphone, reactivation will likewise be necessary.

    If one or more journeys cannot be combined, this may be because there are gaps between these journeys. Two journeys can only be combined if the total mileage at the end of a recorded journey corresponds to the total mileage at the start of the subsequent journey. Furthermore, it is not possible to combine private journeys with business journeys.

    No, combined journeys can no longer be broken back down into individual journeys.

    The CSV file (exportable using the "My Journeys" function) may contain gaps and is therefore not a legally valid logbook. However, the table can be used as the basis for a logbook.

    Firstly, check the app settings. Here you can define whether and for which functions the app is allowed to determine your location. Location capture should be activated for the "Parking & Locating", "Refuelling" and "My Journeys" functions. Furthermore, the location identification function on the smartphone can be deactivated altogether or just for this app.

    Another possible reason for the missing indications: at the start or end of the journey, you stopped at a location where location identification was not possible, e.g. in an underground garage.

    If the vehicle is moved without the Mercedes me Adapter plugged in, or if there is no connection with the smartphone, e.g. if Bluetooth® has been deactivated, no journeys are recorded. This can cause gaps in the list of recorded journeys.

    If your vehicle is running on the reserve fuel supply, it is no longer possible to determine the exact fuel level. In this case, it is therefore important to enter the refuelling amount manually.

    If refuelling is added manually, the entered location is not shown on the map because not only addresses can be entered in the location field. You can also enter "journey to work" here, for example.

    The Mercedes me Adapter app is the only app for using with the Mercedes me Adapter. Other Mercedes me apps concern already networked vehicles and are not compatible with the Adapter. The apps have a broadly similar range of functions (e.g. the display of vehicle data or the function for relocating the parked vehicle); however, the Mercedes me Adapter app also includes the "My Journeys" (automatic journey list) and "Refuelling" (automatic refuelling list) functions. Some of the functions offered by other Mercedes me apps, e.g. opening/closing of doors via the app, are not available in the Mercedes me Adapter app. The general difference between the Mercedes me Adapter and the networked Mercedes me connect vehicles is that the Adapter communicates with the smartphone via Bluetooth® and does not use its own SIM card. If the vehicle ignition is switched off, the Adapter is not active, meaning that Remote Services such as opening and closing of the doors or programming of the auxiliary heating are not possible.

    When driving abroad, the Adapter can be used without restrictions if data roaming is activated, i.e. the usual costs for data roaming will apply. However, the Adapter can also be used without an Internet connection, although in this case there may be restrictions, e.g. it may not be possible to translate the GPS coordinates into address data.

    On iPhones, this notification appears every time a Bluetooth device wishes to communicate with the smartphone (hands-free systems are an exception). If the app is already active on the phone (in the foreground or background), the Adapter will establish a connection even if this notification has not been confirmed. However, if the app has been actively ended beforehand (e.g. by "swiping out") or the phone has been restarted, this query must be confirmed so that it is possible to call up the app and establish communication with the Adapter. This is required to ensure that the journeys are recorded regularly.

    To enable detection of preferences and further development of the app, we evaluate app usage data (using Adobe Marketing Cloud). In this way, the app can be better adapted and improved to meet the needs of users. If it is not wished to save and evaluate information about app usage, this function can be deactivated and reactivated under App Settings > Usage Data Acquisition.

Questions about the Mercedes me Adapter.

Questions about the Mercedes me Adapter.

Questions about co-use of the Mercedes me Adapter.

Questions about co-use of the Mercedes me Adapter.

    As the main user of a vehicle with a Mercedes me Adapter, you can invite other people to become co-users of this vehicle using the co-user management function. Proceed as follows to do this:

    Go to the Mercedes me portal, click on 'Your Vehicles' and select the relevant vehicle. Then click on "Manage Co-users" in the 'Mercedes me connect' section. You can use the 'Invite Co-user' function to send an invitation by entering an email address. You and the invited person will be informed by email. The invited co-user can accept the invitation by following the link included in the email.

    The co-user must then reactivate the Adapter on their smartphone by disconnecting and reconnecting it. The Adapter can then be activated in the Mercedes me Adapter app using the 'Add New Vehicle' function.

    Once the co-user has performed these steps, they can likewise use the Mercedes me Adapter with your vehicle.

    Only the main user is able to invite co-users.

    The main user must invite the co-user. The invited co-user must accept the invitation via the link in their email. The co-user likewise requires a Mercedes me user account and must download the Mercedes me Adapter app from the App Store or Google Play. One Mercedes me Adapter per vehicle for several users is sufficient.

    The co-user must likewise activate the Adapter to use it. To do this, disconnect and reconnect the Mercedes me Adapter to link the co-user's smartphone to the Adapter. The vehicle can then be added in the app under 'Add New Vehicle'.

    The co-user can use the full range of the Mercedes me Adapter app's functions. Their personal data (e.g. journey list) are stored solely on their smartphone and cannot be transferred. Only the main user receives the maintenance offers, and only the main user is able to invite other co-users and activate/deactivate the service.

    At the end of the journey, the vehicle values shown on the "My Vehicle" page are saved in the backend and exchanged with the users.

    The contents of "Parking & Locating", "Refuelling" and "My Journeys" are not synchronised. The determined location data in particular only remain locally on the smartphone on which they were recorded.

Safety notes.

Safety notes.

    Connecting the Mercedes me Adapter to the diagnostics socket always ensures that:

    • the functions of vehicle systems are not impaired
    • the starter battery cannot become discharged,
    • no emission monitoring information is reset

    The Mercedes me Adapter may only be used in vehicles approved by Mercedes-Benz with the supported smartphones and operating systems. (These are listed in the 'Usage Prerequisites & Service Availability' section.)

    The Mercedes me Adapter has been developed for permanent use in the relevant diagnostics socket and should remain connected there.

    Please observe your home country's laws regarding the use of smartphones in the vehicle whilst driving.

    Conversion or modification of the Mercedes me Adapter impairs functional safety and can have effects on your vehicle. Caution: risk of injury!

    Never open the Mercedes me Adapter unless authorised to do so. Never perform repairs yourself!

    Handle the Mercedes me Adapter with care. It can be damaged by shocks, impacts or dropping from even a low height.

    Keep the Mercedes me Adapter away from moisture and extreme heat.

    Never immerse the Mercedes me Adapter in water or other liquids. To clean it, use a damp cloth moistened with water. Never use aggressive cleaning agents (vinegar/lemon-based cleaners, scourers, limescale or nail varnish remover, all-purpose cleaners, neutral cleaners, white spirit, natural cleaners containing oil or similar) or abrasive brushes or sponges or similar cleaning aids to clean the Adapter.

    Keep your Mercedes me Adapter and its accessories out of the reach of children. If any small parts are swallowed, seek medical assistance immediately. Risk of injury or even danger to life!

    In the event of excessive heat generation by the smartphone, always check for proper functioning. If problems persist, please stop the app on your smartphone and contact your smartphone manufacturer.

    Stow or attach the smartphone securely before each journey. Note that, in the event of sudden deceleration (braking), non-secured objects like smartphones can cause major risks, damage and injuries to both the vehicle occupants and other road users.

    People with hearing aids or other devices with the BAHA® ("Bone Anchored Hearing Aid") label or "partially implanted" or "fully implanted" hearing aids may experience an increase in noise interference. Please contact your hearing aid manufacturer to discuss alternatives.

    People with medical devices, e.g. pacemaker or defibrillator: when you use the Mercedes me Adapter, there is a radio link between your smartphone and the Adapter. The electromagnetic radiation can impair the functioning of a medical device. Risk of fatal injury! Before operating the Mercedes me Adapter, always ask your doctor or the medical device's manufacturer about any effects of the Mercedes me Adapter's emissions.

    The use of mobile phones is strictly prohibited at filling stations. There is a risk of explosion as the battery can spring out of the mobile phone if it is dropped, and the sparks caused by this could ignite petrol fumes. It is prohibited to remove or insert the Mercedes me Adapter when the vehicle is in a refuelling area.

    Refrain from any software re-engineering or logging/decompiling as well as any code tampering with regard to the Mercedes me Adapter and the app. Risk of injury!

    Jail-broken smartphones (non-authorised removal of usage restrictions on the mobile operating systems of the smartphone manufacturers) are not supported and are generally excluded from usage.

    Technical modifications, errors, omissions and deviations excepted!

Free and open source software.

Free and open source software.

    1. AES256 byte-oriented AES-256 implementation. All lookup tables replaced with 'on the fly' calculations. Copyright © 2007-2011 Ilya O. Levin, Other contributors: Hal Finney Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED 'AS IS' AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGE WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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