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CL 500 // S 500 L // E 320 T
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548 Posts
Discussion Starter #1
Can anyone tell me if upgrading the rear lights of a W221 from the pre-facelift units to the new post-facelift LED units requires more than a simple switch? My indy thinks that at least I have to replace the rear lights fuse box also. Thanks in advance for your help.
 

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2007 S550
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Simple plug and play, I didn't replace any fuses. Ordered mine from expresspart on ebay and they work perfectly. Hardest part for me was removing the side panels but aside from that, its just disconnecting the main plug to the taillights and the little interior trunk light. 3 simple screws to remove the actual taillights, plug the new one into the existing oem connector and youre good to go. I don't have any error lights and everything works perfectly.
 
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