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Discussion Starter · #1 ·
Over the last few weeks, I have observed multiple problems with the factory stero on my Mondeo Edge - 59 Reg Diesel. Its a pretty sturdy car otherwise.

1. Audio unit turns on-off when driving (every few minutes) - I suspect a possible lose connection or a terminal.

2. Ocassiionally the time display goes blank as in date and time will be displayed as "--/--/--" and "--:--"

3. Sometimes when the unit is switched on, a message flashes "1 HOUR" followed by "MUTE"

4. When the bluetooth sync is enabled for phone calls, the audio cuts-out and doesn't come back even when you turn it off and back on.

Posting a couple of picures to show the datetime problem. Generally when any of the above issues happen, the audio volume goes a bit lower than the usual level.

Car Vehicle Automotive design Motor vehicle Steering part
Car Vehicle Automotive design Motor vehicle Steering part


On most days, the unit work fine when I start the car and drive off. It plays up most of the time when I am on the move.

I took the car to my local Ford dealer and they couldn't detect any faults with the diag kit. The supervisor suggested sending the kit to factory but he warned me of the expensive charges so I didn't go further with that.

Lastly, I am planning to visit a local Halfords to get an aftermarket stereo replacement probably the one which comes up Satnav, USB and a few other latest features.

Does anyone know how much a new unit costs to include Satnav & USB ? not to mention I am looking for a new one with same dimensions in size as the factory one.

Cheers.
 

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Discussion Starter · #3 ·
That's cool. So it does something like a screen mirror from your phone to the display unit ? or comes with a built in app for satnav?

Also if I may ask what was the cost of replacement ?
 

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yeah the stereo mirrors my phone. the unit has its own app in the app store. just plug the phone in (charges it at the same time ) then launch sat nav on screen

mondeo mk4 zetec tdci 2008 plate
 

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the unit was £349 docking cable £45 cables and module for sat nav from phone was £80 pal. pioneer avh-x3600 dab

mondeo mk4 zetec tdci 2008 plate
 

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Tht is sick as. Looks sweeeet tht pal

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Has tht got an facia plate or mondeo fitment¿¿¿

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Probally spent a bit more got all parts from an audio specialists. Seen cheap uns on ebay they look a bit poor

mondeo mk4 2L diesel 2008 stardust silver
 

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Discussion Starter · #10 ·
Hi,

I left my mondeo at the local ford dealer for diagnostics before going for the expensive audio unit replacement. To my horror the dealer say he suspect the dashboard cluster to be at fault and that's what is messing up the audio. They are unable to confirm if that will solve the problem though....the cost for dash cluster is £680 inc VAT.

I am really in a confused situation...although I can spend the money I want to do it in the right thing.

Is there any other suggestions to fix my problem please.

I live in Reading, Berkshire. Any recommendations for good diagnostics ?
 

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You could buy a new set of speedo clocks and get the mileage adjusted to your car and see if that changes anything or get a new radio and see if the fault follows.

Can you discern from the dealer about how they came to that conclusion?
 

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1. Audio unit turns on-off when driving (every few minutes) - I suspect a possible lose connection or a terminal.

2. Ocassiionally the time display goes blank as in date and time will be displayed as "--/--/--" and "--:--"

3. Sometimes when the unit is switched on, a message flashes "1 HOUR" followed by "MUTE"

4. When the bluetooth sync is enabled for phone calls, the audio cuts-out and doesn't come back even when you turn it off and back on.
A couple of those suggest a power problem. There will be two feeds to the stereo - one 'permanent' (via a fuse, but nominally on all of the time) and one switched via the ignition key. My suspicion would be that one of those has become intermittent, maybe even the fused supply has something else on it causing a problem.

Another possibility would be that the battery voltage has become 'strange' (too high or too low): there is no evidence of the main display becoming brighter or dimmer or the dials doing a full sweep, or the headlights dimming?

The other thing that can cause really weird and wonderful symptoms is if an earth connection is bad. Then, not only does the module get the wrong power supply voltage but all of the inputs and out puts are referenced to the wrong voltage and just about anything can happen (and usually does, just not all at the same time). So, a bad earth at the head unit or a bad earth somewhere on the dashboard could cause it.
 

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Discussion Starter · #13 ·
Thanks for responding folks. Yes another observation a couple of days back was when I was driving on a motorway all dash lights came ON and the complete dash went off suddenly for a few seconds, though everything came back normal an additional air bag light stayed on. That too went off when I stopped the car and switched ignition off and back on.. All these happened while the stereo was paying up as usual on/off...

Looks like I need to get the dash cluster sorted first then...if that fixes the stereo well and good. If not I will save some money for next year.

Worst thing is even if I decide to trade in the car, I suspect I will lose out heavily due to the persisting fault.

I will get to the dealer and keep you posted.
 

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You know, one of the slightly irritating things about this fault (...and you may say that it is more than irritating...) is that it probably not the most expensive thing to fix once you know what it is.

I'm more than ever drawn to the idea of a bad earth to several modules somewhere behind the dash. Could cause exactly this kind of thing, and you'd probably only have to tighten up a connection (after pulling half the front of the car apart to find the problem, of course). Or a bad connection between, say, the alternator and battery leading to a battery voltage that is all over the place (although you'd expect, for example, the headlamps to be flickering or changing in intensity, if that were the case, and maybe starting problems).
 
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