Headlight Unit and Xenon bulb - Renault Forums :: Independent Renault forum

Electronics In Car Entertainment (ICE), Sat-Nav, lighting, wiring etc.

LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 18th November 2007 Thread Starter
Junior Member
Join Date: Feb 2006
Posts: 3
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
Headlight Unit and Xenon bulb

The xenon bulb has gone and there appears to be some moisture in the headlight unit. For background info, I have never had an impact and the car is four months out of warranty.

My main question is; Do you think it is ok to just replace the bulb or will that one blow the same way if the moisture builds up again?

Last edited by phil6340; 19th November 2007 at 06:59 PM.
phil6340 is offline  
  5 Lastest Threads by phil6340
Thread Forum Last Poster Replies Views Last Post
Headlight Unit and Xenon bulb Electronics philmountains 7 1673 18th November 2007 05:58 PM
Sponsored Links
post #2 of 8 (permalink) Old 18th November 2007
Junior Member
Join Date: Nov 2007
Posts: 17
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 1
Thanked 0 Times in 0 Posts
Not usually the bulb that blows and at 85 ish pounds not a cheap mistake to make!
They run at 90volts, and strike at couple of thousand so they and the power pack dont mix well with damp.
Currently in sparki1's garage:
sparki1 is offline  
post #3 of 8 (permalink) Old 18th November 2007
Diamond member
The Ships Cat's Avatar
Join Date: Jul 2006
Posts: 162
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 1
Thanked 0 Times in 0 Posts
Hi Phil, Welcome to the forum. I have had three ballast units for the xenon light go on my previous Laguna , and I have had one bulb go on my present one. Are you sure that it is the bulb that has gone as they are very expensive. The problems used to be with a poor seal around the ballast unit and its bad location , behind the bumper , the connections used to corrode. A word of warning , The xenon lights work on a high voltage I think about 2k to start and about 86 volts when running so make sure the voltage is discharged before working on lights. There is a problem with condensation in the headlights and I think this is mentioned in the user manual. Check to make sure that the rubber bungs that seal the back of the headlight where the bulbs fit are in place. A method of clearing the condensation is to put a cloth over the headlight and turn on your lights. Remember to turn on main beam as they generate heat , the xenons do not generate much heat, if any. I could be worth going and having a word with your local Renault stealer as xenon bulbs should really last the lifetime of the vehicle. I have replaced my main beam with the new Osram NightBreaker bulbs and they give a much better light. Hope this helps
Currently in The Ships Cat's garage:
Skoda Octavia vRS and sometimes a Renault 19 P2 16v Exec

Last edited by The Ships Cat; 18th November 2007 at 08:38 PM.
The Ships Cat is offline  
post #4 of 8 (permalink) Old 18th November 2007
davesss's Avatar
Join Date: Sep 2005
Posts: 4,838
Nominated 0 Times in 2 Posts
Nominated TOTW/F/M Award(s): 3
Thanks: 0
Thanked 145 Times in 126 Posts
The xenon bulbs use 30000 volts for a second or two on starting up, once they are lit they only use just 30 volts.

You first need to know if the bulb has gone or whether the HID ballast has gone, one way to test is to swop the bulbs over.

Condensation does not affect the bulbs.

The HID ballast sits in a well under the headlight, in wet weather this well gathers water which can get into the HID and stop it working.

Xenon bulbs can be bought a lot cheaper than Renault supply them for.

Have a look at all the posts in this thread........


If you need to check the bulbs or HID also look at this post.......


as you will need to remove the front bumper.

A problem well stated is a problem half solved !
Currently in davesss's garage:
2002 Laguna Sports Tourer 1.8 Dynamique Moondust VF1KGOB, Fiat Siecento Micheal Schumaker, Kawasaki KLE M/Cycle and a cheap Mountain Bike.
davesss is offline  
post #5 of 8 (permalink) Old 22nd November 2007
James 182's Avatar
Join Date: Nov 2007
Posts: 86
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
For moisture in the headlight park it up in the sun and take the rubber boot off the back and just let it vent.

Renault say that its not a problem and the light units are designed to breath and allow any moisture that builds up to vent on its own.

I think it is a problem as it makes the inside of the lense mucky
Currently in James 182's garage:
Renaultsport Clio 182
James 182 is offline  

bulb , headlight , unit , xenon

Quick Reply

Register Now

In order to be able to post messages on the Renault Forums :: Independent Renault forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome