SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: SL500 turn signal

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Old 09-25-2010, 09:03 AM
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1999 sl500
SL500 turn signal

Hello everybody
I have been fighting a small but annoyng problem on my SL500 that I got this summer.
Both turn signal (Left and right) are flashing too fast. (180 Hz)
The Hazard lights flash normally (90Hz)
I replaced all bulbs, check grounds, replaced the combination module that controls the turn signal.
Has anyone an idea on what to look for?
Old 09-25-2010, 09:34 PM
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CL55, SL500, E350
Check to see if you windshield wiper and/or high beam fuse are blown.
Old 09-26-2010, 10:20 AM
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1999 sl500
Fuses are good..
The flashing rate is good for hazzard signal, and also when I lock the car (3 flashes)
Old 09-26-2010, 02:10 PM
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1999 sl500
Update:
When i connect a third bulb to the turn signal circuit, the flashing rate is correct.
I think I will just add a 6 Ohm 50 Watt load resistor.......
I'm still puzzled....

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