Proper headlamp adjustment and bulb replacement are essential for safe driving and visibility. This guide covers how to adjust your headlights, replace bulbs, and ensure your taillamps are functioning properly.
Headlamp Adjustment
Correct headlamp alignment is crucial for optimal road illumination and avoiding glare for other drivers.
When to Check & Adjust
✅ At regular intervals
✅ After replacing a bulb
✅ If the headlamps appear misaligned
Adjusting Headlamps:
- Horizontal adjustment: Use screws (3)
- Vertical adjustment: Use screws (4)
Replacing Front Bulbs
High/Low Beam Sealed-Beam Unit (Halogen) – No. 2
1️⃣ Remove cover (1).
2️⃣ Loosen clamping screws (8).
3️⃣ Remove the retaining ring and lamp.
4️⃣ Disconnect the plug from the socket.
5️⃣ Replace the bulb and reinstall components.
High Beam Sealed-Beam Unit (Halogen) – No. 1
1️⃣ Loosen clamping screws (9).
2️⃣ Remove retaining ring and lamp.
3️⃣ Disconnect plug from the socket.
4️⃣ Insert the new high beam bulb.
Side Marker Lamp (4W Bulb)
1️⃣ Remove headlamp (5).
2️⃣ Loosen clamping screw (10) and detach lamp holder.
3️⃣ Depress the bulb, turn left, and pull it out.
4️⃣ Install the new bulb and secure everything.
Turn Signal, Parking, and Standing Lamps (21/5W Bulb)
1️⃣ Located below the bumper.
2️⃣ Loosen securing screws (11) and remove lens (12).
3️⃣ Depress the bulb (13), turn left, and pull out.
4️⃣ Insert a new bulb, ensuring the lens protrusion is at the bottom.
Fog Lamp (H3 Bulb)
1️⃣ Loosen securing screws (15) and remove housing.
2️⃣ Detach holding spring (16).
3️⃣ Remove bulb (14) and disconnect the plug (17).
4️⃣ Install the new fog lamp bulb.
Replacing Taillamp Assembly Bulbs
1️⃣ Remove both knurled nuts in the trunk.
2️⃣ Pull off the bulb carrier.
3️⃣ Depress each bulb, turn left, and pull out.
4️⃣ Replace with the appropriate bulb type.
Bulb Types for the Taillamp Assembly
- Backup Lamp → (21W Bulb)
- Stop Lamp → (21W Bulb)
- Tail, Parking, and Standing Lamp → (10W Bulb)
- Turn Signal Lamp → (21W Bulb)
- Side Marker Lamp → (5W Bulb)
Final Checklist
✅ Test all lights after installation.
✅ Ensure proper alignment of headlamps.
✅ Keep lenses clean and free of fogging.
✅ Use only 12V bulbs with the specified wattage.
By following this guide, you can maintain optimal visibility and safety for your classic R107 Mercedes-Benz.
