Change headlight assembly.

2009 Nissan X-Trail Wagon headlight fitting removal. (Australian version)
Remove the central grill
Trim must be partially removed to allow access to the lower and side attachment points of the headlight fitting.
Remove the black trim around wheel arch on the side of the headlight fitting to be removed or both sides if replacing both assemblies.
Remove the 10mm nut holding the trim upper most and nearest the wheel well.
Remove the nut from the side mounting point and the set screw from the bottom mounting point.
Remove top two set screws and plastic clip from the top mountings.
Disconnect blinker light, head light and park light lamp holders and cables.
Installation is reverse procedure.
NISSAN X-TRAIL T31 (09/2007-07/2010)
https://www.carparts2u.com.au/files/detail.php?id=30196

Last I checked Chrysler had changed it's headlight mounting from external screws to just the two adjusting screws. Looking down from the top, you should be able to see two Torx head screws that are used to adjust the headlight assembly. The remove teh head light assembly you remove those and the assembly should come right out. Both of these screws or adjusters will be 6 to 8 inches long. I hope your not removing this to change the headlight it self. Chrysler has been using the insert bulbs for several generations and to replace the bulb you only have to unlock the collar on the back of the light assembly and pull and then replace the bulb.

To remove first you want to remove the headlight door mounting screws and remove the headlight door. Then you want to remove the 4 retainer ring screws and remove the retainer ring from the headlight. Then you want to pull the headlight bulb forward and detach the wiring connector.

To install you first want to attach the wiring connector to the headlight bulb and place the bulb in position, locating the bulb glass tabs in the positioning slots. Then you will attach the bulb retainer ring to the assembly with the retainer ring screws. Then you will install the headlight door and secure with the screws. Then you will check the headlight bulb aim and adjust as necessary

Let me know if this helps you.

To remove first you want to remove the headlight door mounting screws and remove the headlight door. Then you want to remove the 4 retainer ring screws and remove the retainer ring from the headlight. Then you want to pull the headlight bulb forward and detach the wiring connector.

To install you first want to attach the wiring connector to the headlight bulb and place the bulb in position, locating the bulb glass tabs in the positioning slots. Then you will attach the bulb retainer ring to the assembly with the retainer ring screws. Then you will install the headlight door and secure with the screws. Then you will check the headlight bulb aim and adjust as necessary

Let me know if this helps you.

Blower Motor
Removal & Installation
To Remove:

1. Evacuate and recover air conditioning refrigerant.
   
2. Remove battery.
   
3. Disconnect and cap A/C lines at evaporator tubes.
   
4. Remove blower motor assembly drain.
   
5. Remove glove box.
   
6. Remove 5 screws and right hand instrument panel lower trim panel.
   
7. Remove screw that attaches upper center console to gain access to left
   instrument panel lower support.
   
8. Remove left and right bolt and remove instrument panel lower support.
   
9. Detach control cable from inlet duct.
   
10. Disconnect blower motor electrical connector.
    
11. Pull carpet back and remove hole cover plate.
    
12. Remove 2 bolts at top of blower motor assembly.
    
13. Remove 2 nuts that attach bottom of blower motor assembly to mounting studs
    on bulkhead.
    
14. Remove blower motor assembly.

To Install:

1. Install blower motor assembly.
   
2. Install 2 bolts at top of blower motor assembly.
   
3. Install 2 nuts that attach bottom of blower motor assembly to mounting studs
   on bulkhead.
   
4. Install hole cover plate and replace carpet.
   
5. Connect blower motor electrical connector.
   
6. Install instrument panel lower support and install left and right bolts.
   
7. Install right hand instrument panel lower trim panel and 5 screws.
   
8. Install glove box.
   
9. Install blower motor assembly drain hose.
   
10. Connect evaporator lines at bulkhead.
    
11. Evacuate and charge air conditioning refrigerant.
    
12. Install battery.

LIGHTING Headlights REMOVAL & INSTALLATION Cherokee, Wagoneer and Comanche Models Fig. 1: Remove the top corner headlight bezel mounting screw
Fig. 2: To access the turn signal bulb or headlight bezel mounting screws, remove the 2 turn signal housing retaining screws
Fig. 3: After removing the turn signal housing from the headlight bezel, remove the 2 bezel mounting screws . . .
Fig. 4: . . . then carefully pull the headlight bezel away from the headlight assembly
Fig. 5: Remove the 4 headlight assembly retaining ring screws . . .
Fig. 6: . . . then pull the retaining ring off of the headlight assembly
Fig. 7: Pull the headlight assembly away from the vehicle just far enough to disengage the electrical connector from behind the headlight

1. Remove the headlamp bezel and retaining ring attaching screws. Remove the bezel and retaining ring.
2. Pull the headlight out, disconnect the wire harness and remove the headlight from the vehicle.
3. Install the headlight in the reverse order of removal.

Grand Cherokee and Grand Wagoneer Models

1. Open the hood, reach into the engine compartment and locate the lock ring supporting the bulb assembly.
2. Rotate the lock ring 1?8 turn counterclockwise and pull the bulb straight out from the housing. To install:
   
3. Install a new bulb and position the bulb assembly in the lamp housing.
4. Rotate the lock ring 1?8 turn clockwise to secure.

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The Grand Cherokee will have an assembly that is fastened with bolts and screws to the body.
Get the new assembly and compare to the old one to see where to unfasten the bolts and other fasteners to aid in removing quickly.

REMOVAL & INSTALLATION 1984–88 Vehicles

1. Open the hood, then turn the headlights on.
2. Detach the headlight motor wire on the outer side of the headlight.
3. Turn the headlights off (the disconnected light should stay open).
4. Unfasten the 4 screws at the bezel. There are 2 at the front and 2 at the sides. Fig. 1: With the hood in the raised position, unfasten the Torx® screws from the outer side of the headlight bezel/trim piece
   Fig. 2: You must then remove the screws from the inner side of the bezel/trim piece
   
   
5. Remove the bezel. Fig. 3: Remove the first of the top bezel/retaining ring screws . . .
   Fig. 4: . . . then remove the remaining Torx® screw
   Fig. 5: Lift the bezel/trim piece away from the headlight assembly
   
   
6. Remove the retaining spring by carefully using a hooked end tool, such as a cotter pin removal tool to move it to the side.
7. Remove the headlight from the aiming pins by rotating the headlight toward the center of the car.
8. Unfasten the 4 retaining ring screws, then remove the ring. Fig. 6: With the hood closed, you can see the 4 headlight retaining ring screws (1) and 2 aiming screws (2)
   Fig. 7: Remove ONLY the 4 retaining ring screws, do NOT touch the aiming screws
   
   
9. Remove the headlight pump from the mounting bracket, unplugging the socket as you pull it away. Fig. 8: Remove the headlight away from the mounting bracket, unplugging the socket as you pull it away
   To install:
   
10. Install the headlight bulb, making sure it is plugged in properly.
11. Position the retaining ring and secure with the 4 screws.
12. Position the headlight into the aiming pins. Move the retaining spring back into place.
13. Install the bezel and secure with the retainers.
14. Turn the headlights on, then connect the headlight motor wire.
15. Turn the headlights off. Both should lower.
16. Close the hood. Check the aim of the headlights, and adjust if necessary.

1989–96 Vehicles

1. Open the hood.
2. Open the headlight door halfway. This can be done either by turning the headlight switch on, then back to the parking lamp on position, or by the manual headlamp control knob (which is located on the inboard side of the headlight door). NOTE: Before removing the screws from the side of the headlight bezel, place your hand under the bezel to support and prevent damage to it.
   
3. Remove the screws from the front of the headlight bezel. NOTE: Before removing the screws from the side of the headlight bezel, place your hand under the bezel to support and prevent damage to it.
   
4. Remove the Phillips head screws from each side of the headlight bezel.
5. Remove the bezel by pulling it straight out from the engine side of the hood. Fig. 9: View of the headlight bezel mounting
   
   
6. Unfasten the screws from the headlight retaining ring.
7. Remove the headlamp from the assembly, unplugging the electrical connector as you are pulling it away. Fig. 10: Exploded view of the headlight assembly
   Fig. 11: Location of the headlight mounting and aiming screws
   To install:
   
8. Attach the headlight electrical connector.
9. Position the retaining ring and install the screws securing the ring to the headlight.
10. Position the bezel in place on the headlight assembly.
11. Install the screws on each side of the bezel and tighten to 51 inch lbs. (5.8 Nm).
12. Install the screws on the front of the bezel and tighten to 17 inch lbs. (1.9 Nm).
13. Cycle the headlamps, then close the hood. Check the headlight aim, and adjust if necessary.

The headlight assembly (1993 Grand Caravan) is held in place with three plastic "wing nuts" that rotate on the ball-end (front end) of the adjusting screws. One "adjusting screw" (the one on the bottom, inboard side) is not for adjusting, just for mounting. The other two adjusting screws take a torx T15 in the front end of the screw.
Removing the headlight assembly is somewhat of a trick - it seems like it takes a special tool to reach the "wing nut" and turm it 1/4 turn (90 degrees) CLOCKWISE (so the "wings" are vertical). When all three of these mounting "wing nuts" have the wings vertical, the headlight assembly just pulls forward and off these mounting nuts. Place the new assembly back over the "nuts", turn the 3 "wing nuts" another quarter turn, and the new unit is mounted. Probably not even a need to re-adjust the headlights, but you should check.
The PROBLEM, is that it appears to take a special tool to reach and turn these wing nuts without breaking them (yes, the old ones get brittle). I tried a socket (did not work), and then long needle-nose pliers (broke one wing nut), then a 1/2" open-end wrench (which at least worked). However, pushing the new assembly back over the wing nuts, I broke another wing nut. So, I broke 2 of the 6, and one was broken when I started.
Now I need to find replacements for these "wing nuts" ... any ideas where to get them?
Of course I can use some washers, some nuts to fit the fine-threaded adjustment screw, and some sort of bushing (maybe cut a short piece of rubber tubing to fit over the adjustment screw). Place double nuts (second nut to lock the first in place) and a washer, then the bushing onto the adjusting screw, then the headlamp assembly onto the bushing, then add another washer, and two more nuts (not too tight) to lock it onto the adjusting screw (which must still be free to rotate). Repeat for each of the 6 mounting points. I have not tried this yet, but ... it should work.

Fabricate a tool to turn the "wing nuts" using a piece of 3/8 inch ID tubing which you file or cut 1/8 inch by 1/8 inch notches on each side of a diameter line.

Front Turn Signal & Parking Lights

1. On some models you will need to remove the headlight bezel mounting screws and the bezel.
   
2. Remove the mounting screws for the lamp assembly.
   

Remove the mounting screws securing the lamp assembly

1. After the screws are removed, pull the assembly from the vehicle.
   

After the screws are removed, pull the assembly from the vehicle

1. Disconnect the twist lock socket from the lens housing.
   

Disconnect the twist lock socket from the lens housing

To remove the bulb, turn the twist lock socket (at the rear of the housing) counterclockwise 1/4 turn, then remove the socket with the bulb; replace the bulb if defective.



Newer Oldsmobile models have the turn signal separate from the headlamp assembly ...



... unlike the newer Buicks, where the unit is attached to the headlamp

To install:

1. Install the electrical harness to the back of the unit.
   
2. Position the signal assembly, then attach to the vehicle with the mounting screws. Tighten the screws to 54 inch lbs. (6 Nm).
   
3. Insert the socket to the back of the unit, then attach the headlamp bezel if removed.
   

Front Turn Signal & Parking Lights

1. On some models you will need to remove the headlight bezel mounting screws and the bezel.
   
2. Remove the mounting screws for the lamp assembly.
   

Remove the mounting screws securing the lamp assembly


After the screws are removed, pull the assembly from the vehicle


Disconnect the twist lock socket from the lens housing
To remove the bulb, turn the twist lock socket (at the rear of the housing) counterclockwise 1/4 turn, then remove the socket with the bulb; replace the bulb if defective.



Newer Oldsmobile models have the turn signal separate from the headlamp assembly ...


... unlike the newer Buicks, where the unit is attached to the headlamp

To install:

1. Install the electrical harness to the back of the unit.
   
2. Position the signal assembly, then attach to the vehicle with the mounting screws. Tighten the screws to 54 inch lbs. (6 Nm).
   
3. Insert the socket to the back of the unit, then attach the headlamp bezel if removed.