Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
63 99... Notes for replacing the protective cap of the headlight
Important! Risk of damage! Damaged seals on the protective caps will lead to moisture penetration into the headlight. This will in turn cause porous cable insulations and malfunctioning of the headlight.
When working on the headlight system, check the protective cap seals. Replace the protective cap in the event of damage!
Example: screwed protective cap Seal (1) on protective cap (2).
Example: latchable protective cap Seal (1) on protective cap (2).
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.