I have a 2005 Jaguar X-Type. I have condensation in the driver side headlamp. Last evening, the low beam bulb went out. (I presume from the moisture) Once I replace the bulb, can I remove and re-seal the plastic lens or will I need to spend over $300 for a new assembly? Thanks

Seems like if your other low beam is lit, there's something wrong with the new bulb. Make sure it's the exact type needed, and switch the working bulb from the pass. side to drivers side to check.

1. Remove the three pin-type retainers, two screws and the radiator defector.
2. Remove the 4 bolts securing the headlamp assembly and remove headlamp assembly.
- Disconnect electrical connector
3. Remove the 3 hex-head bolts and 2 torx-head screws and remove headlamp protective cover.
4. *****Standard low-beam bulb*****
Disconnect the connector from the bulb and remove the low beam bulb.
5. *****HID low beam bulb*****
Release the spring tabs and remove the HID low beam bulb
Disconnect the connector from the bulb
6. *****High beam bulb*****
Disconnect the electrical connector and remove the high beam bulb.
Reverse order to install

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Is neither the high beam nor low beam working? Neither the left side nor the right side for each? Knowing this could help isolate the problem. It could be anything from a simple case of blown headlamp bulbs to a burned-up headlamp switch to a defective Daytime Running Lamp Module. I will say, however that I have seen quite a few problems with the headlamp bulb sockets on several of the GMs.

Its easy but access is a little difficult. I moved the hose a little out of the way to get a few extra mm by opening the battery cover and fuse box. Then on the light, just flip the 2 clips on either side of the black plastic cover to open. You will then see a centre electrical connector and a separate smaller one. The centre one goes on the bulb - just pull it off. Then there is a spring clip holding the bulb in - release both sides and take out the bulb. Put in a new bulb making sure never to touch the glass part. Reverse all the above and the job should be done.

Headlamp Removal & Installation Bulb Replacement To Remove:

1. Remove the Headlamp Assembly. Headlamp bulbs
   
   
2. Turn the high/low beam bulb socket counterclockwise to remove.

To Install:

1. Turn the high/low beam bulb socket clockwise to install.
2. Install the Headlamp Assembly.

Headlamp Assembly (Park, Turn, Cornering and Side Marker Lamps) To Remove:
Headlamp assembly R &I

1. Rotate the headlamp assembly retainer pins and pull up to remove.
2. Remove the mounting bolts.
3. Disconnect the harness connectors.

To Install:

1. Connect the harness connectors.
2. Position the headlamp assembly on the panel.
3. Rotate the retainer pins and push down to lock in place.
4. Install and secure the mounting bolts.

For Audi A4 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
First fuse on first row from left upper corner is Fuse Nr.20 = F20 (15A) - RH headlamp low beam, headlamp adjustment.
First fuse on second row from left upper corner is Fuse Nr.21 = F21 (15A) - LH headlamp low beam, headlamp adjustment.

if the battery is on that side you need to remove it first. i presume you are accessing the bulbs from inside the engine compartment ?

You know the fuse for the high beams is good ( Cab fuse panel fuse # 16 ) and the pass low beam fuse ( cab fuse panel # 26 ).
Might want to check cab fuse panel fuse #28 ( this is the driver's side low beam ).

If this fuse has power on both sides ( with the low beams on ) next you can pull the headlamps, and check for power at the connectors, but depending when the last bulb change took place, I would say you need need bulbs. ( need at least 1 for the high beam out )
Confirming with a meter at the headlamp would be a good idea, before spending the money.

The bulb connector has 3 pins.
Black wire is ground on both sides
Light Green w/ Black stripe wire is high beams on both sides
Driver Lo = Dark Blue w/ white stripe
Pass Lo = Dark Green w/ Orange stripe.

there are to metal clamps on the back of the headlamp assembly and remove the cover

Check the fuse for the passenger side.It is under the hood. it may not be making good contact. wiggle it a little bit and see if it makes any difference. if not, check where the the ground wires are connected to the chasis. See if thats not the problem.