Z-E4626/H Support Page

Mercedes – Z-E4626

  • Current Firmware Versions

    To keep your device up to date state, ZENEC sometimes releases software updates for device models to add new functionality, correct software issues and improve stability and reliability. To avoid damage to your device, be sure to follow the update instructions carefully.

    The current Software version is: V 2.1.0

    To find the current firmware version of your Z-E4626:
    – “Setup”
    – “Bottom right Icon”
    – “Version Info”
    – Tap “OK” to display the firmware version you are after.

    Z-E4626 Software Update

    After installing the software update please use the Set Up instructions to personalise your unit.

    Update Instructions Update Firmware Setup Instructions

  • Update your Navigation Software

    Navigation software updates (map data and system updates) can be downloaded from the Naviextras Internet portal using your PC or notebook.

    To Update your Navigation Software:
    1. Do you have the SD Card provided with your device?
    a. If no, a new SD card licence will need to be purchased
    b. If yes, proceed to the next step
    2. Register online at
    3. Download and install the Naviextras Toolbox on your Windows PC (There is no Toolbox for Apple Mac Computers)
    4. Download and follow closely the “Navigation Update Instructions”

    Navigation Instructions Naviextras Toolbox

    How to Video for Navigation Update

  • Z-E4626 User Manual Quickstart Navigation Manual Navigation User Manual Hema User Manual

  • Please read before proceeding

    • Please note: the file download may be very large, so we do not recommend using a 4G or Mobile internet service.
    • Please check the internet connection and speed before proceeding.
    • This is a guide only. We cannot guarantee that the appearance and/or layout of Hema Maps’ website will remain the same over time. Referenced aspects of this website may be updated or appear different then what is specified in the below instructions.
    How to Update Hema Maps Guide

    How to Update Hema Maps Video

  • What situations should be considered for device installation of the Z-E4626?

    The Z-E4626 is suitable for motor home vehicles based on Mercedes-Benz Sprinter, but also Mercedes-Benz Vito and Viano vehicles. The vehicle must be equipped with a factory radio provision. The Z-E4626 is not compatible with vehicles that are equipped with a factory radio or OE navigation system.

    The Z-E4626 only features a ISO-DIN wire harness in the set. I can’t connect the device to my Mercedes-Benz?

    The Mercedes-Benz Vito car platform comes equipped differently depending on the motor home brand. 

    Sweeping and scrolling on the touch screen or confirming a selection feels a bit coarse. Is something broken?

    The short answer is no. The touch screen of this device is needs to comply with its automotive use character, like operation with gloves during winter time or bright sunlight during summer, so a resistive touch screen type is deployed. Resistive screen types respond to pressure only. This in turn means that the simple swipe or tipping on the surface like on a mobile phone (with capacitive screen) does not trigger a desired function. The screen should be operated with a little more finger pressure..

    Do I need to adjust the “Antenna Supply” setting in the setup menu?

    The Z-E4626 has a DAB Antenna supply and the factory default setting is ‘OFF’. This can be changed by accessing the ‘Setup’ menu and tapping the bottom right Icon. Then tap the ‘Misc’ panel to access the DAB Ant Supply function.

    The first time the was powered on or if the ZENEC device was disconnected from power, there are no radio stations showing?  

    Right after the first power-on process and then if the unit is disconnected from the vehicle battery, the Z-E4626 will perform an automatic radio station search. Depending on the frequency band to be scanned, the search process can take up to 2.5 minutes. During the search period, radio playback is not possible.

    AF ON: With AF turned ON, the device will automatically search and select the best available FM station with radio station auto-scan. In Australia we recommend that this is turned off to avoid random radio station selection as it can switch to a stronger transmission signal.

    Is it possible to operate the Z-E4626 with the ignition (ACC) of the vehicle in its OFF position?

    No, this ZENEC E>GO device requires ignition (and CAN net) to be powered on for the unit to operate, due to vehicle integration functions.

    CAN data is only present in the vehicle, when ignition status is ON – so for this reason operation of the unit is not possible when ignition of the car has been turned to its off position.
    However, in a Motor Home installation the Zenec can be wired to run through a switch to an alternate power supply so it can run when the ignition is ‘OFF”. This will ow it run from an alternate power supply and it won’t drain the main battery. This type of installation should be discussed with your reseller/installer to ensure it is installed and connected correctly.

    The device features an “ALT” key.  What does this do and how can I use it?

    “ALT” is an abbreviation for “alternative” (UK / EN) and refers to a configurable function key, (see instructions page 87) where a specific function can be assigned via the Setup menu. The following direct function assignments are possible, for direct “ALT” button operation: reversing camera / Quick EQ / SmartLink / A/V-In / USB / iPod / DVD. (EN).

    When I want to listen to DAB radio stations all I hear is noise, but no sound. What can I do?

    The Z-E4626 features an integrated DAB+ tuner. For the reception of digital radio stations, an antenna supporting the DAB standard is required.
    If your car does not have a suitable DAB antenna, it will need to be retrofitted and this will allow you to enjoy the digital radio program. Please consult your Authorised Zenec Reseller for options relating to installing a DAB antenna.

    What’s the CAM button on the unit and what can I use it for?

    An additional feature for motor home use is the allocation of the CAM key to activate the rear view camera, if one is installed. This allows you to activate the rear camera picture while driving to provide a rear vision image on the screen. This is in addition to automatic function during reverse parking. The manual CAM button when activated allows the driver to observe the traffic behind the vehicle and replaces the rear view mirror. It can also show a view of the trailer or bike carrier, or assist with the trailer coupling process with vision of the tow ball.

    Is the OE installed GPS antenna compatible with the Z-E4626 device?

    Yes, in most cases the factory fitted GPS antennas are equipped with a standard (blue) FAKRA connector which directly plugs into the Z-E4626 GPS receptacle on the device rear panel. However, we usually recommend the installation of the GPS antenna supplied with the unit. This is because it is optimized to work best with the navigation device hardware and will, in most instances, give you the best GPS system performance.

    Is it possible to connect or continue using OE installed Bluetooth hands-free module with the Z-E4626?\

    No, this is not possible. The Z-E4626 comes with an integrated high quality Parrot hands-free module. If a OE BT based hands-free option is installed, it needs to be completely deactivated to prevent interference issues. This is best done by combining two measures: Unplug the wire to the Bluetooth module and remove the fuse assigned to this module in the main fuse box of the vehicle.

    How many smart phone devices can be paired?

    Device allows to pair up to three smart phones whereas two out of three can be connected. The auto-connect function only works for phone storage space one and two.

    How does the TFT brightness adjustment and the day/night HMI switching work?

    The device features three different options to control the screen brightness. In the setup menu under Video / Picture on the second page, you will find the following settings: Brightness > Navi / Car.

    Choose “Navi” to allow the GPS system to set brightness automatically over day / night signal of the GPS system.

    Select “Car” to adjust the brightness according to signals present in the CAN net of the vehicle itself.

    Note that if GPS signal controlled day / night switching is enabled, the sync process may take roughly 20 seconds, right after device start up.

    Day / night HMI switching: The factory default is set to day / night switching controlled by the GPS navigation system. However, you are provided with the option to adjust this function manually. If the GPS signal-controlled auto switching is not desired, it can be deactivated in the Navigation Pane of settings (NAV> More> Settings> Map Setup> Color> Day / Night / Auto).

    If I encounter difficulties in installing a navigation software update, Is there a ZENEC Support contact that could help me with this process?

    On the Zenec Australia website there are detailed instructions available for download. For end users, we have also set up tutorial videos on doing navigation updates using either a USB or a SD card, depending on your device. These are available under the ‘Navigation Software’ tab in the software support area..

    Why do I need software updates and where do I find them?

    ZENEC releases software updates to add new functionality, correct software issues and improve reliability in general. Some updates also contain up to date BT firmware, to offer improved compatibility with new mobile phones. Software updates can be downloaded from the ZENEC Australia homepage. Click on the “Support” button in the top section of page navigation and select your specific device for access to the respective software update pages.

    Do not download software packages from third parties or other unknown sources from the Internet, because external software can irreversibly damage your unit. Devices that show software induced system failure by loading unauthorised software are excluded from warranty repair and this damage will be charged at current service rates for labour/support and parts if required. It may not be possible to repair the unit.

    My ZENEC device navigates incorrectly.  Some streets aren’t even shown on the device.

    We use maps from the market leader ‘here.com’ for Australia and New Zealand. It is possible that incorrect map data may cause a navigation error. If you experience this, we recommend that this should be reported directly to ‘here.com’ to enable them to correct their mapping data.

    Why does the Z-E4626 device reboot when I start the engine of my car?

    To protect the device electronics from under voltage conditions and resulting malfunction of function modules inside the device the ZENEC mainboard and the MCU constantly measure the power supply voltage via sensor, to trigger a shut-down (and reboot) if the supply voltage drops below 9 V. The automatic sense process avoids faults on the device operation and incomplete loading of software data. This is a device self protection mechanism and is not a defect. If the device does reboot after engine start from time to time, it is recommended that you see your car dealer for an inspection of the condition of the battery, and or if wires and contacts are corroded to cause supply voltage drop below 9V.

    What should I consider when using SD cards?

    The SD card reader slot on the front side of the Z-E4626 device is reserved for the navigation SD-card operation and data retrieval exclusively. Avoid removing the SD card from the device when the satellite navigation application is running as this could corrupt the software. It is not possible to playback video or audio files stored on normal SD cards using the SD-card slot on the front panel.

    Content on the USB data carrier is not recognised even after successful formatting?

    It may happen that the file system on the disk has been damaged, or that the file allocation table of a data carrier is defective due to erroneous write cycles. There may be different reasons for this to happen, such as previous usage or storage of data carriers and problems occurring at the initial format process.

    In such cases, you must format the data carrier again to make it work correctly.

    Info: If the data carrier after formatting is still not recognized by the device, it may be due to an incompatibility of the disk controller chip itself. In such a case, you should use a different data carrier of another brand or manufacturer.

    What do I need to consider for audio playback from USB source?

    Make sure your USB data carrier has been formatted in FAT32 prior to use. Zenec recommends the use of high quality USB sticks to ensure optimum performance.Study the compatibility features of the ZENEC device, for supported USB flash memory data carriers. Note that the USB connector of the device is limited to a current of 400MA maximum consumption. In most cases, external hard disk models will exceed 400mA and therefore Zenec does not recommend the use of such products.