BMW F48 - Page 36

F48�General�Vehicle�Electronics
3.�Exterior�Lights
32
Special�features
In�vehicles�with�LED�headlights�a�ride�height�sensor�for�the�automatic�headlight�beam�throw
adjustment�is�installed�at�the�front�and�rear�axle�on�the�right�side�of�vehicle.
For�the�F48�with�LED�headlight,�a�headlight�cleaning�system�is�not�required.�This�could�be�waived�due
to�compliance�with�all�legal�requirements.
The�Frontal�Light�Electronics�Left�and�Right�(FLEL/FLER)�is�installed�at�the�rear�side�of�the�LED
headlight�and�controls�the�following�functions:
• Low-beam�headlight
• High�beam
• Headlight�flasher
• Headlight�beam�angle�adjustment
• Cornering�lights
In�addition,�the�FLE�controls�the�temperature�control�in�the�LED�headlight.�The�values�of�two
temperature�sensors�at�the�heat�sink�serve�as�input�signals.�After�switching�off�the�lighting�function�an
after-run�of�the�fans�of�up�to�60�seconds�is�possible.�In�the�temperature�control�there�is�also�a�function
for�the�de-icing�of�the�LED�headlight.
In�the�case�of�a�failure�of�a�temperature�sensor�the�fans�are�switched�on�at�full�power�to�protect�the
components�in�the�LED�headlight.�The�data�from�the�FLE�is�transferred�to�the�Body�Domain�Controller
(BDC)�via�the�local�interconnect�network�bus�for�the�diagnosis�of�the�fans�and�temperature�sensors.
For�legal�reasons�(approval�of�light�technology),�the�LED�headlight�obtains�a�forced�connection�for�the
rain-light-solar-condensation�sensor.