Remove/Install Xenon Headlamp Control Unit - AR82.10-P-4632W

MODEL 172.4 

with CODE (615) Bi-xenon headlamp unit with integrated curve illumination 

with CODE (621) Intelligent Light System (left-hand traffic) 

with CODE (622) Intelligent Light System (right-hand traffic) 

Shown on the left front headlamp unit (E1) 

Fig 1: Xenon Headlamp Control Unit Components Location - Model 172.4 With Codes 615, 621, 622 (Shown On The Left Front Headlamp Unit (E1))

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Connect Star Diagnosis and perform initial startup of left xenon light power supply module (E1n4) or right xenon light power supply module (E2n4)	When replacing left xenon light power supply module (E1n4) or right xenon light power supply module (E2n4).	AD00.00-P-2000-04A
2	Remove left front headlamp unit (E1) or right front headlamp unit (E2)		AR82.10-P-4730W
3	Remove bolts (1)
4	Remove left xenon light power supply module (E1n4) or right xenon light power supply module (E2n4) from left front headlamp unit (E1) or right front headlamp unit (E2)	: Ensure the seal (2) at left xenon light power supply module (E1n4) or right xenon light power supply module (E2n4) is seated correctly.
5	Install in the reverse order