Member Since: 15 Jul 2015
Location: Scotland
Posts: 1
Cruise control only accelerates and iPhone won't work!
Hi there! I recently bought a discovery 4 through a private sale as an upgrade to my disco 3. I had many many sensors etc go on the disco 3 but that's common so we fixed them and got on with it! Everything seems to be going well with our disco 4 so far except 2 things.... When we activate cruise control it accelerates and just keeps going, regardless of what button you press and what speed you are doing it just pulls and pulls until you give in pressing buttons at excessive speeds and cancel it. Any ideas what could be causing it? Don't want to take it near a dealer just yet
Also, the connector for iPhones etc in the centre console doesn't work. When I connect my iPhone 6 via the use port and select use on the touchscreen it says device error... Again, any ideas?
Many thanks in advance for any help or advice!
15th Jul 2015 6:09 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20727
D4 suffers from the same CC issues as D3, faulty switch pack or wiring loom would be the place to start My D3 Build Thread
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8075
I've got a PCB and silicone membrane for the D4 CC switch pack you could try, the switch will have to be opened up of course to fit it.
Thinking about it although it could be the loom, if the membrane is not located correct or is breaking up it will hold the cruise + switch on.
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It will when others won't,
It goes where others don't.
15th Jul 2015 7:46 pm
Hairy Dan
Member Since: 19 Jan 2011
Location: Co. Durham
Posts: 12319
Re: Cruise control only accelerates and iPhone won't work!
L80 wrote:
Also, the connector for iPhones etc in the centre console doesn't work. When I connect my iPhone 6 via the use port and select use on the touchscreen it says device error... Again, any ideas?
As far as I remember on the early D4's you couldn't connect an i device via the usb port in the cubby box you had to use the special cable like this one
Click image to enlarge
Cheers Ian
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15th Jul 2015 9:51 pm
bobgolden
Member Since: 16 Oct 2010
Location: South Yorkshire
Posts: 907
HD is correct. You needed a £25 iPhone connector on my MY11 but I don't think they did a lightning connector for the latest iPhones. You could try using a 30pin to lightning connector but be aware that they don't fit if you have any kind of case fitted that encloses the port as the width of the adaptor will stop it being pushed in far enough.
IMO the USB on the MY11 was a waste of space - even using a pen drive with music on wasn't successful as the volume was way too low and if you switched sources you'd sh*t yourself when the radio came on.2010 MX-5 2.0 Sport Tech PRHT
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16th Jul 2015 10:52 am
Tim-L
Member Since: 30 Sep 2022
Location: Swansea
Posts: 1
Hello All,
I've recently bought a 2011 D4 and found the same thing with the CC.
It's OK going uphill, it remains at set speed, but on the flat or worse on the downhill it will keep accelerating. I need to click cancel, wait for the car to drop back to the speed limit, then click resume.
Does this CC system use a vacuum system to hold the speed? or is that only for older cars?
I read somewhere that vacuum hoses and/or reservoirs can fail and need to be replaced?
Cheer Tim.
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