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What dash warning lights will fail MOT
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martyn837
 


Member Since: 29 Oct 2018
Location: Fareham, Hampshire
Posts: 64

England 2010 Discovery 4 3.0 SDV6 HSE Auto Galway GreenDiscovery 4
What dash warning lights will fail MOT

Hi all

My D4 is due a MOT and the dreaded "Normal ride height only" has come up on the dash with a yellow warning triangle.. The car does not drop and drives fine, was just wondering if this would cause a MOT failure?? I cant find a definitive answer online..

Thanks
  
Post #209963014th Nov 2019 4:59 pm
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Im not an expert, but from what I know of a friend who had the issue with a 55 plate HSE that was MOT'd every year with the light on, Previously that would have passed but under the new regs I'm told it was a fail.

If you find someone with an IID tool it may be enough to reset it before the MOT so the error goes away for a pass if it is only something like a sensor thats throwing up an error.

Out of interest did you check the basics on the compressor, fuses and also relay?
 Must stop buying shiny toys....  
Post #209963614th Nov 2019 5:07 pm
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martyn837
 


Member Since: 29 Oct 2018
Location: Fareham, Hampshire
Posts: 64

England 2010 Discovery 4 3.0 SDV6 HSE Auto Galway GreenDiscovery 4

Just had a mate pop over and he scanned the codes its come back as "C1A20: pressure increases too slowly when filling reservoir".. Rolling Eyes
  
Post #209964114th Nov 2019 5:20 pm
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

get him to clear the codes you might be lucky and it will stay off long enough for the test to be done - still could be something easy though if it’s not dropping when it’s turned off and if you can hear the pump running- might be as simple as drying out the beads in the drier
 Must stop buying shiny toys....  
Post #209967414th Nov 2019 6:54 pm
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Admirable
 


Member Since: 19 Jul 2015
Location: Fife
Posts: 1007

Ukraine 2007 Discovery 3 TDV6 XS Auto Zermatt SilverDiscovery 3

How long does it take the compressor to switch off after starting the engine?
  
Post #209969214th Nov 2019 8:23 pm
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ronp
 


Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15208

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4
What dash warning lights will fail MOT

Would an "eco" amber light (i.e. no stop/start available) fail an MOT?
 🏴󠁧󠁢󠁳󠁣󠁴󠁿  
Post #209969714th Nov 2019 8:34 pm
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Admirable
 


Member Since: 19 Jul 2015
Location: Fife
Posts: 1007

Ukraine 2007 Discovery 3 TDV6 XS Auto Zermatt SilverDiscovery 3

Stop / Start is not a test item
  
Post #209971014th Nov 2019 8:57 pm
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