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Thread: SAT NAV Maps

  1. #1
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    SAT NAV Maps

    There is a new maps update for the Polo.

    You can get it at the link at the bottom.

    I was hoping to get a back up SD card to put the maps on so that I can keep the original as a back up.

    I cant seem to find a SD card that works.

    According to the VW site, you need a SD-CDA card. I believe that CDA is the brand - does anyone know where to get these from?

    The cards should be formatted to fat-32 with 4096 cluster size.


    Volkswagen Map & Softwareupdates

  2. #2
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    Buy a a 16gb card at Office Works It will be formatted as FAT32 and make sure its a Class 10 Never heard about CDA

    Just buy this SanDisk 16GB Ultra SDHC Memory Card | Officeworks
    2019 Tiguan 162 R line with DAP & Sound & Vision .White
    Front Dash cam Blackvue 750S and Rear Blackvue DR590-HD Dash Cam.
    2010 Polo 77TSI Flash Red, for shopping basket with Blackvue 750S dashcam.

  3. #3
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    Quote Originally Posted by Hillbilly View Post
    Buy a a 16gb card at Office Works It will be formatted as FAT32 and make sure its a Class 10 Never heard about CDA

    Just buy this SanDisk 16GB Ultra SDHC Memory Card | Officeworks
    That's the exact one that I am using.

    Formatted FAT32 and 4960 clusters.

    I copied the Map folder into the root directory of that SD card.

    It didnt work.
    Last edited by marcuskmt; 30-06-2019 at 10:51 PM.

  4. #4
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    Quote Originally Posted by marcuskmt View Post
    That's the exact one that I am using.

    Formatted FAT32 and 4960 clusters.

    I copied the Map folder into the root directory of that SD card.

    It didnt work.
    Your card just needs to be formatted with the default Which is FAT32 and 4096 BYTES NOT CLUSTERS

    Put it in a PC r/click on drive letter /format hit enter

    It should say File System Fat 32

    Allocation unit size 4096 BYTES

    If it didnt work what is the exact wording of the error you are getting and what is in the root directory of the card


    Some units require you to use a VW supplied card Do you need this or not?????
    2019 Tiguan 162 R line with DAP & Sound & Vision .White
    Front Dash cam Blackvue 750S and Rear Blackvue DR590-HD Dash Cam.
    2010 Polo 77TSI Flash Red, for shopping basket with Blackvue 750S dashcam.

  5. #5
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    You are confusing me as you also have a very similar conversation going in the Tiguan thread .

    So do you have two cars with different units requiring different map versions or what??????
    2019 Tiguan 162 R line with DAP & Sound & Vision .White
    Front Dash cam Blackvue 750S and Rear Blackvue DR590-HD Dash Cam.
    2010 Polo 77TSI Flash Red, for shopping basket with Blackvue 750S dashcam.

  6. #6
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    Quote Originally Posted by Hillbilly View Post
    You are confusing me as you also have a very similar conversation going in the Tiguan thread .

    So do you have two cars with different units requiring different map versions or what??????
    That is correct. I have a Tiguan 2017 and Polo 2019.

    The Polo stores all it's maps data on a SD card.

    From what I've seen, only the original SD card works. I cant seem to find a SD card I can copy over the data to and get it to work.

    This is the same with the new maps I downloaded. It doesnt work on the 16GB fat32 Sandisk that I have.

  7. #7
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    Quote Originally Posted by marcuskmt View Post
    That is correct. I have a Tiguan 2017 and Polo 2019.

    The Polo stores all it's maps data on a SD card.

    From what I've seen, only the original SD card works. I cant seem to find a SD card I can copy over the data to and get it to work.

    This is the same with the new maps I downloaded. It doesnt work on the 16GB fat32 Sandisk that I have.
    Thats right it wont as the VW card seems to have a hidden partition that has some unreadable encrytion in it so you cant copy it or use a different card that hasnt got it.

    You have to load an upgraded map onto the original card it seems

    Mazda runs a similar system as I found out when I accidentally formatted a card and ruined it and it cost me $245 for a new one
    2019 Tiguan 162 R line with DAP & Sound & Vision .White
    Front Dash cam Blackvue 750S and Rear Blackvue DR590-HD Dash Cam.
    2010 Polo 77TSI Flash Red, for shopping basket with Blackvue 750S dashcam.

  8. #8
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    I would use SD card clone software as per this link to produce an exact copy of the VW SD card, then download the new maps and overwrite the map file on the cloned SD card. This should preserve any hidden sectors and not compromise your original SD card

    The Best Free SD Card Clone Software: Cloning SD card easily

  9. #9
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    Tried the cloning software and set it to clone all bytes etc. Did not work. Cloned SD card nav data would not display on the media unit. I used a 32 gb card, would you know what size card needs to be used?
    MY19 Polo GTi 2.0 DSG

    Previous VW cars:MY16 Polo GTI manual, 2007 Jetta 2.0 TDi manual, 2001 VW Bora V6 4-Motion - flooded away

  10. #10
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    Quote Originally Posted by maxrob200 View Post
    Tried the cloning software and set it to clone all bytes etc. Did not work. Cloned SD card nav data would not display on the media unit. I used a 32 gb card, would you know what size card needs to be used?
    For the Polo use the VW card that comes with it and use the VW discover Care program to download it and follow the instruction for using a VW card

    The cards obviously have unreadable hidden data on them to stop them being copied..

    As I said Mazda cards have similar The Tiguan just accepts any card and uploads the maps from it into the Nav

    The Polo is different altogether
    Last edited by Hillbilly; 28-08-2019 at 04:08 PM.
    2019 Tiguan 162 R line with DAP & Sound & Vision .White
    Front Dash cam Blackvue 750S and Rear Blackvue DR590-HD Dash Cam.
    2010 Polo 77TSI Flash Red, for shopping basket with Blackvue 750S dashcam.

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