1. Preparation:
* Disconnect the Battery: This is crucial to prevent short circuits. Disconnect the negative (-) terminal first.
* Gather Tools: You'll need a flat-head screwdriver (preferably plastic or with a protective cover to avoid scratching the paint), possibly a trim tool, and possibly a small pry tool. A flashlight will also be helpful.
2. Accessing the Headlight:
* Remove the Wheel Well Liner (partially): This will give you better access to the back of the headlight. You might only need to partially remove it to reach the necessary fasteners. Check a repair manual for your specific model to see how much needs to come off. The liner often uses plastic push-in fasteners that can be easily removed and reinstalled.
* Locate Remaining Fasteners: Even with a broken slider, there are usually other retaining clips or screws holding the headlight assembly in place. Feel around the edges of the headlight, behind the grill and along the fender. Your repair manual can help identify these.
3. Carefully Removing the Headlight:
* Gently Pry: Use your flat-head screwdriver or trim tool to gently pry the headlight assembly outward, starting at the broken slider area. Work your way around the perimeter, using even pressure to avoid breaking any clips. Be very careful not to force it! The plastic can crack easily.
* Work Freely: As you pry, you'll feel the clips releasing. Keep applying gentle pressure and maneuvering the assembly slightly. This may require patience and some finesse to get it loose. If you feel significant resistance, stop and reassess your approach – you might be forcing against a clip you haven't yet released.
* Disconnect Electrical Connectors: Once the headlight is loose enough, you should be able to disconnect the electrical connectors on the back. These usually have a locking mechanism you need to release before pulling them apart.
4. Reinstallation (Important for future reference):
Once you've addressed the issue requiring headlight removal, reinstalling will be easier if you take note of how the clips fit together *before* removing them. Consider taking photos before disassembling to help you during reassembly.
Important Considerations:
* Repair Manual: A repair manual specific to your 2003 VW Beetle is invaluable. It will show you diagrams of the headlight assembly and its fasteners, helping you identify everything you need to remove. You can find these online (often for a small fee) or at auto parts stores.
* Gentle Pressure: The most crucial aspect is using gentle, even pressure. Avoid using excessive force, which could lead to further damage to the headlight housing, surrounding trim, or even your paintwork.
* Professional Help: If you're uncomfortable working on your car yourself, or if you're concerned about causing further damage, it's best to take it to a qualified mechanic.
Remember to carefully inspect the broken slider tab to see if it can be repaired or replaced. Replacement tabs or clips for the headlight assembly might be available from a VW parts dealer or online retailers. Improvised fixes are possible but should be sturdy enough to prevent future issues.