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Headlamp condensation my headlamp covers are very damp inside. is there a way to dry them?

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Had this problem in my 05 DHS - Cadillac replaced the assembly under warranty.

Posted on Feb 24, 2009

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How do I remove the headlamp covers to remove the moisture inside and reseal them. They do not seem to be a one piece sealed unit.

head lamps that have removable lenses usually have a series of clips around the headlamp edge , you may have to remove lamp to see if this is the case with your vehicle , another way to dry out the interior is to remove the lamp and dry the inside with a hair drier through the bulb fitting hole, not to high a heat slow but steady, hope this helps

Jul 30, 2015 | 2004 Jeep Grand Cherokee

1 Answer

How to replace left front headlight on a 1998 Buick Le Sabre

Headlight Removal & Installation Bulb Replacement CAUTION
Improper handling of a halogen bulb could cause the bulb to shatter into flying glass fragments due to the bulbs containing gas under pressure. Always wear eye protection, only handle the bulb by its base, keep dirt and moisture off the bulb, do not install the bulb with power at the socket, and keep them away from children.

To Remove:
  1. Turn off power to the headlamps.
  2. Remove the headlamp assembly.
  3. Turn the bulb socket counterclockwise and remove from the headlamp assembly.
  4. Remove the bulb from the socket.
To Install:
NOTE: If oil from your skin or anything damp comes in contact with the bulb, clean the bulb with alcohol or a suitable degreaser and wipe the bulb dry. Too prevent the bulb from exploding when the bulb is turned on.
  1. Install the bulb into the socket.
  2. Install the bulb into the headlamp assembly and turn clockwise to lock into place.
  3. Install the headlamp assembly.
Headlight Assembly To Remove:
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Open the hood.
  3. Remove the fasteners (D) that retain the headlamp assembly (C) to the headlamp bracket (A).
  4. Pull the headlamp assembly (C) forward in order to disengage the rear retaining pin (B), and disconnect the electrical connector from the forward lamp harness.
  5. Remove the headlamp assembly from the vehicle. NOTE: Avoid touching the bulb or letting the bulb come in contact with anything damp. Oil from your skin or moisture on the bulb can cause the bulb to explode when the bulb is turned on. If either comes in contact with the bulb, clean the bulb with alcohol or a suitable degreaser and wipe the bulb dry.
  6. Remove the bulbs from the headlamp assembly by turning them counterclockwise.
To Install:
  1. Install the bulbs into the headlamp assembly and turn them clockwise to lock in place.
  2. Connect the electrical connector to the forward lamp harness.
  3. Install the headlamp assembly (C) into the vehicle by pushing rearward in order to engage the rear retaining pin (B).
  4. Install the fasteners (D) that retain the headlamp assembly (C) to the headlamp bracket (A).
  5. Close the hood.
  6. tecnovative_74.gif

Jan 31, 2011 | 1998 Buick LeSabre

1 Answer

How do i remove the car battery from the 2006 Pontiac Grand Prix?

Hi. Please procedure below:

Find the 12-volt, side post battery on the driver's side, just behind the headlamp.

Remove the cables from the battery terminals with a battery terminal puller or socket wrench.

Lift the battery out of the compartment. Keep your gloves on at all times to avoid getting acid on your hands. Safely dispose of the battery at an auto parts store or a recycling center.

Use a wire brush to clean the surface that holds the battery. Clean the insides of the connector cables with a pointed wire brush.

Wipe the cables and the battery tray with a damp cloth and let them dry out. Use a rag that you can throw away since it will be covered with acid.

Place the new battery on the shelf. Place the correct cable on each terminal and tighten them securely with pliers or a socket wrench.


Dec 20, 2010 | 2006 Pontiac Grand Prix

1 Answer

How to replace a headlight

please rate, thanks.

SECTION 417-01: Exterior Lighting 2000 Focus Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 03/6/2003
Headlamp Assembly Removal
All vehicles
  1. Remove the fender splash shield lower retaining screw.
    • Push the fender splash shield to one side.
  1. Remove the headlamp assembly lower retaining bolt.
  1. Remove the radiator grille.
Vehicles built up to 07/1999
  1. Remove the headlamp assembly.
    • Disconnect the headlamp assembly electrical connector.
Vehicles built 07/1999 onwards
  1. Remove the headlamp assembly.
    • Disconnect the headlamp assembly electrical connector.
Vehicles built up to 07/1999
NOTE: Procedure if there is a concern over the formation of condensation inside the plastic headlamp lens or if the plastic headlamp lens is split.
NOTE: It is normal for a small amount of condensation to form on the inside of the plastic headlamp lens, it will disappear when the headlamp is switched on. If the headlamp does NOT dry out after having been switched on for 15 minutes, check the build date of the headlamp. If the build date is between 01.08.98 and 30.09.98, install a new headlamp cover flap.
NOTE: If there is a concern, both headlamps must be removed. Defective headlamps must be renewed and reworking may be necessary. When the headlamp is installed, the number of mounting points must be reduced.
  1. If the headlamp assembly is defective, install a new one.
  1. NOTE: Sometimes the guide pin on the plastic headlamp lens is still present on a new headlamp assembly.
    Cut off the guide pin flush and de-burr as necessary.
  1. Remove the headlamp levelling motor from the faulty headlamp assembly and install it on the new headlamp assembly. For additional information, refer to Headlamp Leveling Motor - Vehicles Built Up To: 10/2001 in this section.
  1. NOTE: Sometimes there is no hole in the bracket of a new headlamp assembly.
    Do NOT install the retaining bolt any more.
All vehicles
  1. NOTE: Fix the headlamp assembly in place using the locating pin.
    Install the headlamp assembly upper retaining bolts.
    • Connect the headlamp assembly electrical connector.
  1. Install the radiator grille.
  1. NOTE: Fix the headlamp assembly in place using the locating pin.
    Install the headlamp assembly lower retaining bolt.
  1. Install the fender splash shield lower retaining screw.
  1. Adjust the headlamps. For additional information, refer to Headlamp Adjustment - in this section. For additional information, refer to Headlamp Adjustment - Vehicles With: High Intensity Discharge Headlamps in this section.

Dec 16, 2010 | 2000 Ford Focus

2 Answers

How do I remove the headlight cover to clean the inside part of the headlight cover. It appears to be fogging making the lights seem dim.

you are talking aftermarket headligth covers? , the head lite itself cant not be taken appart, your best bet is to drill a small hole in the lower part ofthe headlight so moisture can be release, this will help but in the long run you'll need to replace it

Oct 02, 2010 | 2007 Toyota Corolla

2 Answers

I have condensation in one of my headlamps what do I do?

Take the lamp out and let the moisture dry up either blow dryer or air dry.
~Dan Herzberg~

Feb 19, 2010 | BMW Z4 Cars & Trucks

1 Answer

Head lights Condensation

No Dear No Other Way. IF You Thinking To buy A Car Then Dont Think To Go For A New Lens Just Buy That.Thanks

Jan 15, 2010 | 2007 Mercedes-Benz ML500

3 Answers

I am in the process of buying a jeep Laredo which seems to have condensation inside the headlamp glassis it possible to clean this/replace the glass/or is it best to buy a new pair

Condensation is deemed to happen if ambient temperature is lower than inside the headlamp and humidity inside of headlight is too high.
From a headlight design perspective, you cannot lower ambient temperature. Not much can be done with temp inside headlight either. However, humidity levels on the inside can be reduced. Most designs usually have 2 or 3 air vents to keep humidity below condensation threshold levels.
This might sound complicated, but the phenonomen is exactly the same as windows in a winter home and humdity levels inside. Too much showering, and bathroom window fogs up. Venting will reduce condensation.

You might wonder why headlamps are not designed to be 100% air tight, so that no humidity enters? Well, that would be in an ideal world with no heat losses in bulbs. As the headlights goes through continous warm-cold-warm-cold cycles as you turn light on and off, the air and plastic will expand and retract. This creates pressure changes, which will move a slight amount of air in and out. So instead of forcing the air to be inside, air is moved through controllable passages, so that minimum of road dirt will enter.

If condensation disappears within a week. Moisture can have been sucked up in high pressure wash. This should normally dissapate within a week by itself.

If condensation amount stays constant, then there is crack(s) in headlight that lets in water. This can be siliconed, depending where the crack is, or a replacement headlight should be considered.

Nov 04, 2009 | 2001 Jeep Grand Cherokee

3 Answers

Failed its mot because of headlamps how do i clean them on a toyota lucida

we use paint restoring compound like t cut makes ya headlights look like new!! jason GTMOTORS

Sep 19, 2009 | 1995 Toyota Previa

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