E39 Mk3 Question
 

Hey guys I'm new to the board and I recently purchased a 2002 540 and it has the MK3 navigation system. I have an issue with it.

Any disc I put into the navigation it spits it right out. I put in the BMW oem nav disc and it spits it out after a fewseconds of spinning. I put in a v.32 update mode 2/form 1 and it spins it and spits it out.

The wierd thing is is that
1. Navigation screen is on. Shows the alttitude etc. But when I press navigation it asks for a disk but when I put it in it spits it out.

2. The mk3 units power light is on. When I put in the disc it flashes a few times and spits the disc out.

I promise guys that Ive searched for the last two days before I decided to post. But I couldn't find my situation

any help would be great but I just can't afford to upgrade to a mk4. So if I want my navi to work I need to do something with this on. Thanks in advance

It sounds like the laser in the MKIII unit is shot. Your options are probably limited to buying new disk reader/laser mechanism or buying a replacement MKIII and dump the one you have (or sell it for parts). Option #1 is not very easy or cheap. There are a few folks who have done this, but it is really only cost-effective if you have a MKIV, in which the replacement cost of the entire unit is much higher than the replacement cost of a MKIII.