Here's a general overview, but this is NOT a substitute for a proper repair manual:
Replacing the Entire Lock Mechanism (More Involved):
1. Interior Panel Removal: You'll need to remove the interior door panel. This usually involves unscrewing screws around the armrest, handle, and possibly under the door pull. There might be clips holding the panel in place – carefully pry these loose with a plastic trim tool to avoid damaging the panel. Consult your repair manual for the exact procedure.
2. Disconnect Components: Once the panel is off, you'll see the lock mechanism. Disconnect the rod(s) connecting the door handle, lock button, and the lock mechanism itself. Take pictures or make notes as you go to ensure you remember how everything goes back together.
3. Remove the Lock Mechanism: The lock mechanism is usually held in place by screws or bolts. These might be visible or hidden behind the door panel. Your repair manual will guide you on how to access and remove them.
4. Install the New Lock Mechanism: Install the new lock mechanism in reverse order of removal, making sure all the rods are properly connected.
5. Reassemble: Put the interior door panel back on, securing all the screws and clips.
6. Test: Test the lock mechanism to ensure it works properly with the door handles and key.
Replacing Only the Lock Cylinder (Less Involved):
1. Interior Panel Removal: Same as above.
2. Access the Lock Cylinder: Once the interior panel is off, you should see the lock cylinder. It's usually held in place by a retaining clip or screws. Again, your repair manual will show the specifics.
3. Remove the Lock Cylinder: Carefully remove the retaining clip or screws.
4. Install the New Lock Cylinder: Insert the new lock cylinder, making sure it's seated correctly. Secure it with the retaining clip or screws.
5. Reassemble: Put the interior door panel back on.
6. Test: Test the lock cylinder with your key.
Important Considerations:
* Key Codes: If you're replacing the lock cylinder, you might need to provide your VIN or key to a locksmith or auto parts store to ensure you get the correct cylinder for your car's key. Replacing the whole mechanism often avoids this issue.
* Door Locks Interconnected: On many vehicles, including some Subaru models, the door locks are interconnected. Replacing one lock mechanism might necessitate replacing others to maintain consistent key operation.
* Professional Help: If you're not comfortable with car repairs, it's best to take your car to a qualified mechanic or locksmith to avoid damaging your car.
Again, a repair manual specific to your 1992 Subaru Legacy is absolutely crucial for successfully completing this task. The steps and procedures outlined above are general and may not precisely match your vehicle. Improper installation could lead to malfunctioning locks or damage to your car.
