Is 250 Se-L

[Josh250SEL]

Hi all

I have had my IS 250 SEL (56 plate) for a few years now with no problems, until today! :-)

Without any warning my Mark Levinson Systems touch screen has stopped working.

Everything seems to be OK with regards to the Audio, DVD, Bluetooth, reversing camera etc. The only problem is that I am unable to get to the Sat Nav as I can not get past the caution screen on startup.

If I press any of the buttons either side of the screen it takes me to the relevant screen but touching any of the buttons on the screen results in nothing!

I have tried disconnecting the Battery in the hope that it might reboot the system to no avail.

In fact, does the head unit have it's own power supply (battery)? The radio settings were not lost, which leads me to believe there is some sort of power backup.

Has anyone had a similar problem, and if so, did you find a solution?

I rang Lexus Edgware Road today and nearly fainted when they said a reconditioned unit would be £2700 and if I wanted a brand new unit it would be another £1200!!

I don't want to change out the whole unit, especially at that price, as everything seems to be working ok apart from the touch screen.

Does anyone know if the screen can be replaced rather than the whole head unit? and if so, where do you buy them from?

One thing I did notice was that when reversing it had a message at the bottom of the screen saying "system initialising" and the 2 yellow lines that aid reversing were not present.

This was after i had disconnected and reconnected the Battery and I can't say if it was like that beforehand as I didnt notice it.

I am not sure if this is relevant to the problem I presently have but I have never seen it before.

It is just strange that it was working in the morning and then at lunch time it wasn't - car left parked for about 4 hours.

Any help or information would be much appreciated.

Thanks

Josh