Remove/Install Headlamp Control Unit - AR82.10-P-4660MFA

Model 118, 177, 243, 247 

with code 631 (Static LED headlamps, left-hand traffic) 

Model 118, 177, 243, 247 

with code 632 (Headlamps, LED, static, right-side traffic) 

Model 177 

with code 640 (SAE dynamic LED headlamps, right-hand traffic) 

Model 177 

with code 641 (Dynamic LED headlamps, left-hand traffic) 

Model 177 

with code 642 (Dynamic LED headlamps, right-hand traffic) 

Shown on model 177.0 with code 642 (Dynamic right-hand traffic LED headlamp) 

Shown on model 247.6 with code 642 (Dynamic right-hand traffic LED headlamp) 

Courtesy of MERCEDES-BENZ USA

Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove left front lamp unit (E1) and/or right front lamp unit (E2).	Model 118, 177, 243, 247.0 with code 631 (Static LED headlamps, left-hand traffic) Model 118, 177, 243, 247.0 with code 632 (Headlamps, LED, static, right-side traffic) Model 177 with code 640 (SAE dynamic LED headlamps right-hand traffic) Model 177 with code 641 (Dynamic LED headlamps, left-hand traffic) Model 177 with code 642 (Dynamic LED headlamps, right-hand traffic)
			AR82.10-P-4733MFA
2.1	Remove left fender liner at front.	Model 247.6/7 with code 631 (Static LED headlamps, left-hand traffic) Model 247.6/7 with code 632 (Headlamps, LED, static, right-side traffic) When removing left headlamp control unit (E1n9).
			AR88.10-P-1301MFA
2.2	Detach right fender liner at front until right headlamp control unit (E2n9) is accessible.	Model 247.6/7 with code 631 (Static LED headlamps, left-hand traffic) Model 247.6/7 with code 632 (Headlamps, LED, static, right-side traffic) When removing right headlamp control unit (E2n9).
			AR88.10-P-1301MFA
3	Remove washer fluid reservoir for windshield washer system until left headlamp control unit (E1n9) is accessible and secure washer fluid reservoir for windshield washer system against falling down.	Model 247.6/7 with engine 260, 282, 654 with code 631 (Static LED headlamps, left-hand traffic) Model 247.6/7 with engine 260, 282, 654 with code 632 (Headlamps, LED, static, right-side traffic) When removing left headlamp control unit (E1n9).
		Aid of helper required.	AR82.35-P-6000MFA
4	Unscrew screws from left headlamp control unit (E1n9) or right headlamp control unit (E2n9).
5	Remove left headlamp control unit (E1n9) or right headlamp control unit (E2n9) until the electrical connectors are accessible.	Ensure gasket is correctly installed.
6	Release and disconnect electrical connectors.
7	Install in the reverse order.
8	Commission left headlamp control unit (E1n9) or right headlamp control unit (E2n9).	When replacing the left headlamp control unit (E1n9) or the right headlamp control unit (E2n9).
			AD00.00-P-2000-06MFA
		2D Hand scanner	Fig 2