Member Since: 30 Nov 2010
Location: Dartford, Kent. On the square, in the centre...
Posts: 65
D4 2016 model year condensation in both Xenon headlamp units
Bought the car less than a week ago and noticed this by chance as I walked past it earlier today. Both Xenon units have condensation on the inside of the glass from the base to approximately half-way up. Is this normal or if not, is there a fix please?I'm off to a party with the RNLI tonight. They may not get together very often, but when they do, they certainly know how to push the boat out.
23rd Dec 2016 4:53 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73085
The trick for the D3s with same issue was take them out, take the covers off and put them on a radiator (prob on a towel) to dry them off. No idea re MY16s but can't see why not.
23rd Dec 2016 4:57 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
The easier trick is to turn-on the headlights.
Land Rover - Turning Drivers into Mechanics Since 1948
Misting of headlight lenses can occur under some atmospheric conditions. Performance of the lights is not affected and misting clears during normal operation.
24th Dec 2016 12:47 pm
B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
I think it depends on the amount of condensation and the area affected. I'm sure that a lot of early D3 headlights were changed under warranty, depending on the severity of the problem. For me, if it's a 2016 car it would be going back to the Dealership for investigation.
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
Why the ?
As I said, it depends on the degree of condensation, best let the Dealership have a look and decide if it is severe enough to replace under warranty. Info below from DG in December last year, although the illustrations haven't copied, so I have also attached the link to his post
DiscoStu wrote:
Technical Service Bulletin No.LA417-002V3 15 February 2005
This bulletin supersedes TSB LA417-002V2/2005 dated 17 January, which should either be destroyed or clearly marked to show it is no longer valid (e.g. with a line across the page).
Summary :
This bulletin provides information on standards relating to acceptable/unacceptable levels of condensation that may occur in Discovery 3/LR3 headlamps.
This bulletin has been re-issued for revised part numbers.
Cause : The misting is generally caused by natural condensation and can be expected under certain atmospheric conditions. Certain levels of condensation are deemed acceptable by Land Rover.
NOTE : Incorrect replacement of bulb-covers following bulb replacement can lead to condensation forming. Ensure bulb-covers are correctly installed. If this is determined to be the cause of the condensation, measures should be taken to dry out the lamps and to ensure that the bulb-covers are installed correctly. Condensation levels should be monitored to allow natural dissipation of the condensation.
Action : Should a customer express concern relating to the above, this bulletin has been issued to assist service personnel in providing a detailed explanation relating to Land Rover's standards on this subject.
Service Procedure
Normal condensation is a natural process. Discovery 3/LR3 headlamps are vented to alleviate changes in pressure through a sophisticated Gore-Tex vent. Atmospheric air contains water vapor referred to as humidity. When this air enters the headlamp under any circumstance, there is a possibility that condensation can occur if the temperature is cold enough. When normal condensation occurs, a thin film of mist can form on the inside surface of the plastic lens. The thin mist will clear and exit through the vents during normal operation.
During a period of normal headlamp operation the condensation should dissipate as the lamp heats up.
However, if considerable water droplets still remain on the inside of the headlamp glass (refer to attached illustrations), the lamp should be renewed. If there is evidence of standing water within the headlamp unit, the unit will also need to be renewed. For additional information, refer to Global Technical Reference (GTR) Discovery 3/LR3 Workshop Manual Section 417-01, Exterior Lighting - Headlamp Assembly (86.40.49).
NOTE : Headlamps with light misting should not be renewed under warranty. Please refer step 1 and step 2 for clarification of headlamp renewal which will be covered under warranty.
1 . For headlamp renewal covered by warranty please refer to the following attached illustrations:
1 . Large apparent visible droplets of water on the interior side of the clear plastic lens.
Refer to attached illustration E58385
2 . Drip marks/streaks in the film of condensation on the interior side of the clear plastic lens.
Refer to attached illustration E58386
3 . Thick mist covering a majority of the interior side of the clear plastic lens. The thick mist also obstructs the view of the interior of the lamp.
Refer to attached illustration E58387
4 . Puddles/pools of water in the interior of the headlamp.
2 . For headlamp renewal NOT covered by warranty please refer to the following attached illustrations:
1 . No drip marks/streaks in the finely condensed film on the interior side of the clear plastic lens.
Refer to attached illustration E58388
2 . There are no visible water droplets in the thin mist.
Refer to attached illustration E58389
3 . The fine mist does not obstruct the view of the interior of the lamp.
Refer to attached illustration E58390
4 . Condensation covers less than 50% of the interior side of the lens.
Refer to attached illustration E58391
5 . Headlamps with no visible condensation.
Attached Illustration - E58385
Headlamp Condensation Covered by Warranty - 1 (Large water droplets)
Attached Illustration - E58386
Headlamp Condensation Covered by Warranty - 2 (Drip marks/streaks in condensation)
Attached Illustration - E58387
Headlamp Condensation Covered by Warranty - 3 (Thick mist covering the lens with water droplets)
Attached Illustration - E58388
Headlamp Condensation NOT Covered by Warranty - 1
Attached Illustration - E58389
Headlamp Condensation NOT Covered by Warranty - 2
Attached Illustration - E58390
Headlamp Condensation NOT Covered by Warranty - 3 (Mist does not obstruct the view of the lamp's interior)
Attached Illustration - E58391
Headlamp Condensation NOT Covered by Warranty - 4 (Fine mist covers less than 50% of the lens)
24th Dec 2016 3:20 pm
philm
Member Since: 02 Oct 2016
Location: Manchester
Posts: 732
Why the Thud ?
As I said, it depends on the degree of condensation, best let the Dealership have a look and decide if it is severe enough to replace under warranty. Info below from DG in December last year, although the illustrations haven't copied, so I have also attached the link to his post Thumbs Up
DiscoStu wrote:
Technical Service Bulletin No.LA417-002V3 15 February 2005
He asked about D4 2016, don't think dealer would look at that TSB.L633 Defender
Range Rover Velar-gone
Discovery 4 Landmark-gone
Gap IID Tool
24th Dec 2016 4:27 pm
B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
I'm sure that its still an ongoing problem, but there's only one way to find out for sure, ask the Dealership to have a look
24th Dec 2016 10:25 pm
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
If its only 2-3 cm up from the bottom then it's perfectly normal, it will clear after a few minutes with the lights on, dealer won't do anything so save yourself the journey. Faulty units mist over completely from bottom to top.
25th Dec 2016 2:28 am
lccl148
Member Since: 30 Nov 2010
Location: Dartford, Kent. On the square, in the centre...
Posts: 65
Thanks for the comprehensive debate fellas; condensation goes half way up both lamps and won't clear so will be going back to dealer. Also have the outside temperature 3 degree issue for them to sort, plus the tailgate won't shut without a hefty slam so there's plenty for them to look at... Never mind; it's only a Disco so I shouldn't
expect anything less....I'm off to a party with the RNLI tonight. They may not get together very often, but when they do, they certainly know how to push the boat out.
29th Dec 2016 5:25 pm
discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
Good luck. It will come down to how good your dealer is. Mine did manage to fix the 3 deg internal temp display issue but only after I gave them the LTB number, twice, and moaned twice. On the tailgate slam, I got the usual " they all do that sir so it isn't an issue". On the front tow eye cover coming loose, we currently have "we've already replaced it once sir", second time its been in for that . So it's going in again for tailgate, front tow eye cover and now internal heating cannot maintain temperature (well documented here but three attempts for dealer to acknowledge the problem). It's laughable really.
30th Dec 2016 1:01 am
lccl148
Member Since: 30 Nov 2010
Location: Dartford, Kent. On the square, in the centre...
Posts: 65
Laughable it certainly is. Given what it has just cost me it should be faultless but, if there's one thing this forum has taught me as a Discovery owner, it is that such a luxury is unlikely. However, my dealer (Harwoods of Edenbridge) always gave me exceptional service with my old D3, so I trust this relationship will continue even though the car didn't come from them. Fingers will be well and truly crossed and I'll report back the results
when they've had a chance to take a look.I'm off to a party with the RNLI tonight. They may not get together very often, but when they do, they certainly know how to push the boat out.
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