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Auto Xenon lights flash on start up
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4
Auto Xenon lights flash on start up

Does any body else experience their Xenon lights flashing when starting up? I have the lights set to auto, when I start the car when it is dark the lights come on, immediately go off and then immediately come back on. They then stay on and all is good but I have had past cars with xenons and none have done this, it seems weird to start the bulb and then turn it off before starting it again, surely this will reduce its life Question
  
Post #13687214th Nov 2014 10:40 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Do they flash when you turn them on manually?
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Post #13687545th Nov 2014 7:03 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
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England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Did the car come from the factory with xenons fitted, if not the previous owner may have had them fitted and not enabled on the car.

Flack Thumbs Up
  
Post #13687835th Nov 2014 8:32 am
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wiggs
 


Member Since: 03 Sep 2006
Location: Manchester
Posts: 14372

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

Don't you "have " to enable d4 xenons after retrofitting ?

Pretty sure they don't work at all unless you do
 G4 Gone ...but not forgotten  
Post #13687865th Nov 2014 8:39 am
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Robbie wrote:
Do they flash when you turn them on manually?


No, if I start the car and just turn them on all fine.

If I get in the car and press the button once to turn on the ignition thats when they come on, go off and come on, then the 2nd push of the button starts the car and they stay on.

Wiggs and Flack: The car has them as standard from the factory so they are not an aftermarket fit Very Happy
  
Post #13687985th Nov 2014 9:14 am
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Quote:
No, if I start the car and just turn them on all fine.


This tells me that the CCF setting is correct.

Is this linked with the start sequence, ie the lights drop out briefly at the point of maximum cranking before coming back on when the starter disengages?

You can test this by turning on the lamps manually just before cranking it, effectively taking the sensor and associated signals out of the equation.
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #13688015th Nov 2014 9:26 am
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

No, when the car cranks they stay on, it's at the point of pushing the button and the ignition coming on.
  
Post #13688045th Nov 2014 9:39 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8227

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4
Re: Auto Xenon lights flash on start up

crip010 wrote:
Does any body else experience their Xenon lights flashing when starting up? I have the lights set to auto, when I start the car when it is dark the lights come on, immediately go off and then immediately come back on. They then stay on and all is good but I have had past cars with xenons and none have done this, it seems weird to start the bulb and then turn it off before starting it again, surely this will reduce its life Question


Are you sure they do actually go off?- they do flash when they first strike up then go dim and build up to full power in about 4 seconds, thats what mine do anyway but I've only got a primitive D3 Smile
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #13688855th Nov 2014 3:00 pm
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DaveC
 


Member Since: 29 Sep 2009
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United Kingdom 

crip, I'm pretty sure my old MY10 used to do this so your not alone.

i worried about premature bulb blowing, that and the too sensitive auto bringing lights on unnecessarily so switched back to manual.

sadly i preferred to manually control my lights as i always popped signature lights on when driving so never bothered me too much. Embarassed
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MY14 D4 HSE Lux (sadly gone)
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Post #13688905th Nov 2014 3:11 pm
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4
Re: Auto Xenon lights flash on start up

M3DPO wrote:

Are you sure they do actually go off?- they do flash when they first strike up then go dim and build up to full power in about 4 seconds, thats what mine do anyway but I've only got a primitive D3 Smile


Yep they go off, I can here the relay clicking.
  
Post #13688935th Nov 2014 3:17 pm
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

DaveC wrote:
crip, I'm pretty sure my old MY10 used to do this so your not alone.

i worried about premature bulb blowing, that and the too sensitive auto bringing lights on unnecessarily so switched back to manual.

sadly i preferred to manually control my lights as i always popped signature lights on when driving so never bothered me too much. Embarassed


Thanks DaveC, I'm just seeing if other cars same age do the same, I know what you mean the auto can be more trouble than its worth and I can of course just turn the lights with my hand Thumbs Up
  
Post #13688975th Nov 2014 3:24 pm
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Washwipe
 


Member Since: 19 Apr 2013
Location: Bucks Oxon Herts Border
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England 

Mine flashes when I press the start button then stay on if it's dark, always has.
  
Post #13689675th Nov 2014 5:30 pm
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Quote:
Mine flashes when I press the start button then stay on if it's dark, always has.


Ahh....that's 2 other ones that do it, must be normal then.

Thanks for answers guys!! Thumbs Up Thumbs Up
  
Post #13689695th Nov 2014 5:33 pm
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Lucero
 


Member Since: 07 Oct 2014
Location: South
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United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

Same here. Nothing to worry about imo
   
Post #13691425th Nov 2014 10:10 pm
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crip010
 


Member Since: 01 Oct 2014
Location: Twickenham
Posts: 433

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Quote:
Same here. Nothing to worry about imo


Cool, 3 the same, thanks for answer. Thumbs Up
  
Post #13691545th Nov 2014 10:23 pm
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