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Travis Rockwell 05-25-2010 03:21 PM

98 740i - How to update NAV?
Does anyone know if I need to just get a new DVD or what?
Also does anyone know what model my DVD unit is? MK2 or ??

I heard NavTech isn't doing BMW anymore

Thanks for any and all advise

M.Wong 05-25-2010 04:20 PM

If yours is original, although they look alike you can tell the MKI from the MKII by the voice driver. The MKI has a male voice and MKII has a female voice. On the back of the unit, if there are twoconnections that are blue and purple then the unit is a MkII. If the connections are brown and black then the unt is a MkI.

Go to "SET" and the 3 in SW 3-1/63 is the MK number.

An MKIII would be faster but still CD based. An MKIV will be even faster and on DVD so you don't need several disks. I went from MKII and 4x3 screen to MKIV and 16:9 at the same time, so I am not sure how it works if you upgrade to MKIV without changing to the wide screen.

You can't use a NAV unit from an E65/66 or newer car. You can't use a screen from a non-E38 or E39 as the X5 version and others are different sizes.

Regarding NavTeq, you just can't buy the CDs or DVD direct anymore, it has to come from the dealer.

Two good resources:

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