RT4 insert upgrade CD

This is the RT3 unit and was made by Magneti Marelli
The RT3 was available in a few different hardware versions, the later ones supporting MP3 playback. These units had an optical connection to the Display Screen.

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Snoopy2020
Posts: 2
Joined: 15 Feb 2021, 11:59

RT4 insert upgrade CD

Post by Snoopy2020 »

Hi,
I would be very grateful for any advice with regard to getting my C5 2007 radio satnav working again. I have looked through old posts on this site and elsewhere but can’t quite get the answers I need.
A few weeks ago it started displaying the “insert upgrade CD“. I had a look online and saw a number of different suggestions. So far I have tried...
.. disconnecting the car battery for two minutes then reconnecting - no effect
.. disconnecting the radio satnav for 24 hours then reconnecting- no effect
.. holding down the DARK button for a while - seems to try to reboot and then show the same message
.. holding down the MENU button for a while - does nothing at all.
..I used my basic OBD reader to check for any fault codes on the car and there weren’t any.
.. I bought an upgrade CD with from a well rated seller on eBay - when I inserted this I could hear whirring noises as though it was trying to read the CD for about 20 seconds, it would then eject the CD and after about 10 seconds would reload it all over again. I left it doing this for about half an hour but there was no on screen progress i.e. the screen sometimes went black when it appeared to try to reboot and then just showed the insert upgrade message again.
.. after reading that the copy CDs are sometimes faulty, I went to Citroen and bought a genuine CD but this only did the same as the copy.
.. I contacted a reasonably well-known car stereo repairer which advertised that it could repair the RT4 model and asked them what they might charge to repair the hard disk if that was at fault. They told me it was extremely unlikely that it was the hard drive but whatever the problem it was likely to cost several hundred pounds.
.. I have looked online to see about buying a direct replacement and it seems as though these are not commonly available now, but if they are, come in the at about £200 without a guarantee.
.. I don’t tend to use the RT4 satnav and the telephone function is a bit hit and miss as it often can’t recognise the Sim card which I assume is down to the Sim card holder as I have tried other SIM cards and so looked at downgrading to a cheaper secondhand replacement but I am not sure if they have the same fixing points into the dashboard and they seem to have a different aerial connection.
...... sorry for the long ramble of all that I’ve done but I thought it was easier to run through that than have people being helpful offering some suggestions that I’ve already tried.
My questions are firstly, am I right in thinking that the problem is likely to be the HDD, and if so any ideas where I might get one or an alternative to the original Hitachi Endurastar which wouldn’t require any prior formatting etc? Is it fairly simple to fit the hard drive or is it likely to require special equipment etc (I have previously fitted HDD’s in laptops which was very straightforward)
Secondly, if it’s going to be difficult or complicated to repair, are there any simple plug-in alternatives such as a secondhand RT3 unit- would this require a an adapter for the aerial for example?
Thank you very much in advance for any help anyone can give.
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GiveMeABreak
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Re: RT4 insert upgrade CD

Post by GiveMeABreak »

With regard to the SIM - it's best to use as basic a SIM card as you can get - some of the 3G, 4G ones today can cause problems.

As for the other problems, a basic OBD reader very likely won't be able to interrogate all the ECUs on a car like this, especially the Head Units. There are no real suggestions I can offer without a diagnostic - as it could be anything from the internal chips or the Hard Drive (of which the PATA automotive grade drives are very hard to come by).

There is a chap who does repairs on the RT* systems who has been used by members on here and other Forums. Have a look at Autotronics on the repair thread here:

viewtopic.php?t=60781

He is very reasonable and has a lot of experience repairing these.

Snoopy2020
Posts: 2
Joined: 15 Feb 2021, 11:59

Re: RT4 insert upgrade CD

Post by Snoopy2020 »

Thanks for taking the time to reply the information is really useful.
I will contact Autotronics and go from there.

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GiveMeABreak
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Re: RT4 insert upgrade CD

Post by GiveMeABreak »

No problems - let us know the outcome. As you've found out these older units are getting extremely rare to get hold of, so a repair is a good way to keep the integrated systems working.