2017-2020 Genuine Original Factory OEM BMW 4 Series F32 F33 F36 F82 F83 Adaptive LED Headlights Ballast (Xenon Light Control Unit / Module / Controller / ECU / Computer / Starter / Electronic Unit / Steuergerät /Inverter ) , LED Bulb Lamps Globes , LED Signal Turn Module , DRL LED Module , LED Projector Reflector Blow , Front Headlight Plastic Lens Cover Replacement Sale

Part will fit : Driver side / Passenger side / Left / Light / Front

BMW 4 Series F32 F33 F36 F82 F38 : 2-door coupé , 2-door convertible 2-door coupé (F82) , 2-door convertible (F83)

420i , 428i , 435i , 420d , 430d , 435d xDrive, M4 Coupe , Gran Coupe , Equipment

1.5 L B38 I3
2.0 L N20/B48 I4
3.0 L N55/B58/S55 I6
Diesel—turbocharged:
2.0 L N47/B47 I4
3.0 L N57 I6

If your 2017-2020 BMW 4Series F32 F33 F36 F82 F83 Full LED Adaptive Headlight low beam or Headlamp high beam have problems or Angle Eyes , daytime running lights DRL LED turn signal , like light failed failure, flicker , dipped beam very dim dimmer, getting dimmer, not working, burnout , flickering blinking , goes one and off , keeps going out , flashlight , making noise , not bright enough , not focused , stopped working , turning yellow and the dashboard displayer have warning light , error code , go up and down , moving up and donw , pointing down , distance control defective , malfuncation ,turning pink , not turning off , gone ping , turned purple ,turned pink , not bright enough , flashing , warning light ,not working properly , keeps burning out , have any other fault issues, you only need to change or replace related original led parts like: ballast, led bulb, control unit module , reflector , igniter , or wire harness cable to repair and fix your LED headlamps is ok, no need to cost a lot of money to buy a whole brand new headlight assembly like the car dealer suggest.

Normally speaking, when your headlight have problem, check out the fuse first, if it’s ok, then replace the factory fit led control unit box ballast is ok, because from our many years experience, when the headlight not work, 90% of the problem is on the ballast.