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Carefully! there very expensive.
where can I buy a retainer clip for headlight bulb of my c200 mercedes
Open hood. Remove headlamp cover by unlocking retaining wires (wires open outward). Disconnect terminal. Remove bulb by pressing round ends and then pulling wire out. Replace bulb and re-assemble.
d2s or a h7
with your hands ?
1/4 turn to release the old bulb.
http://www.baby-benz.com/portal/lighting/bulb-replacement.html
very carefully very carefully
Don't look on this site anyway
go to halfords
Replace the battery and recharge if a rechargable battery if not it might need new bulb