Benz s350 2010 led headlight
I'm asking if I install the 2010 led back lights to my Mercedce Benz s350 2009 any check engine lights gna appear or any fault Gona happen in my system coz it happens in some cars ??
Or do I need the voltage controller or without it, we just plug weird together without the any voltage controller ?
Please guys let me know ASAP
thank you all


