Just installed Euro headlights, clear blinkers, and smoked taillights this weekend. All checked out fine except when activating the turn signals (left and right), instead of the "clicking" with each blink I get an ignition-key "buzzing" with each blink. What gives? The only difference I can see is in the rear taillights --

US: 10W side marker, 10W rear marker, 21W blinker, 21W backup, 21W brake

Euro (smoked): 10W rear marker, 21W blinker, 21W backup, 21W brake

Any help is much appreciated!

It sounds as if you have less wattage at the bulbs. You have to have the same load on the system for the blinkers to act the same.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Last night I re-installed the stock taillights, "buzzing" still there. However, my son told me the 3rd brake light was not working. I replaced the bulb, re-installed the Euro taillights and voila! pure "clicking" on the blinker.