XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

Headlight flicker

Old Nov 24, 2011 | 06:03 PM
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Default Headlight flicker

It may be normal but I was just wondering if it's common for the headlights to flicker once in a while, also when I'm approaching vehicles quickly on the highway lights go bright for a split second then return to normal ?
 

Last edited by PaulB; Nov 24, 2011 at 06:07 PM.
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Old Nov 24, 2011 | 11:16 PM
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Mine have done it too. It's been a while, but once it happens, you never forget it. Service Manager suggested a loose ground, but that's not it. It's an omen of something wearing out I hate to say.
 
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Old Nov 25, 2011 | 12:52 PM
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Default Headlight Flicker

I'm assuming these are HID lights? If so, I had a similar problem with just the left head light. First I cleaned the the ground connections, which did help but didn't completely cure the problem. I then ordered two new bulbs, (D1S), which have the igniters mounted on the back, that completely cured the problem. Your bulbs are now about seven years old and maybe the igniters get weak? They will certainly have lost a lot of their output, I do know that my new bulbs were dramatically brighter. On a side note, these bulbs can be replaced in about 15 minutes without removing the front bumper, although it is a little awkward.
 
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Old Nov 25, 2011 | 02:26 PM
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Can't help you, sorry, but I would have said, a bad connection/ignitor.

What got my attention was 'removing the front bumper to replace a headlamp bulb'.

Out here in the sticks of Europe, we have to carry spares, and in theory, be able to change them.
 
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Old Nov 26, 2011 | 09:06 AM
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Originally Posted by norisan
I'm assuming these are HID lights? If so, I had a similar problem with just the left head light. First I cleaned the the ground connections, which did help but didn't completely cure the problem. I then ordered two new bulbs, (D1S), which have the igniters mounted on the back, that completely cured the problem. Your bulbs are now about seven years old and maybe the igniters get weak? They will certainly have lost a lot of their output, I do know that my new bulbs were dramatically brighter. On a side note, these bulbs can be replaced in about 15 minutes without removing the front bumper, although it is a little awkward.
Seven years is pushing their useful life, both components wear out over time, they only last a couple thousand hours. I so wish some car manufacturer would take the lead and put hour meters on these like other devices that use the same technology, it would make it so much easier for consumers to realize when their bulbs should be replaced and perhaps even bring more business to the service/parts department.
 
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Old Nov 26, 2011 | 09:18 AM
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Originally Posted by PaulB
It may be normal but I was just wondering if it's common for the headlights to flicker once in a while, also when I'm approaching vehicles quickly on the highway lights go bright for a split second then return to normal ?
Flickering lights? ...on a Jaguar?...surely you jest!!!

from the gallery, I'd shout it's likely both normal AND common......(Now making note to self to avoid HID lamps in future used-car purchases as it appears they don't last beyond the "break-in" period, hehe)
 
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Old Nov 30, 2011 | 07:48 PM
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Thanks everyone, I noticed today with the help of the car in front of me that it's the passenger light, I'm going to replace them both and see how it goes. I find it weird how it flickers more when I approach a vehicle on the highway, they probably think I'm telling them to get out of my way (even though that's what is running through my head)
 
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Old Dec 2, 2011 | 08:15 PM
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Hi, I'm new here but in my experience with BMWs and VW Phaeton, flickering Xenon lamps are the signal that the bulbs are bad.- There is no filament in the lamp so when failure occurs it flickers, rather than goes out.
 
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