M-Class (W166) Produced 2012-2015

Front fog lamp

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Old Sep 10, 2018 | 07:45 AM
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w166
Front fog lamp

HEllo
have a w 166 -2012 with h7 bulbs , and want to ask how you can strat front fog leds ? because the led from bumper are running just when is light outside , when the H7 bulb start at evening the led on bumper stops , and i don t know how to turn them on maunally evan if the low beam is on

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Old Sep 11, 2018 | 03:19 AM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Those are not fog lights - they are DRLs and work exactly as designed.
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Old Sep 11, 2018 | 04:36 AM
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understand , but i see on some w166 the drl s are on also when low beam is on , but mine closed when low beam is on
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Old Sep 11, 2018 | 04:45 AM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
If you leave the headlight switch in the "auto" position (12 o'clock), the DRLs will stay on even when the main headlights come on. If you turn the headlight switch to the "on" position (1 o'clock) the DRLs go off.
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Old Sep 11, 2018 | 04:48 AM
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always i let on AUTO but drl turn off when low beam is on
and i don t know if i must go to service to code this thing and to stay ON . all time
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