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

Model 253

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

Model 253

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

Model 253

with code 640 (High-performance LED)

Model 253

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

Model 253

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

Model 293

Shown on model 253

Fig 1: Headlamp Control Unit Components Location - Model 253 With Codes 631, 632, 640, 641 And 642

Courtesy of MERCEDES-BENZ USA

Shown on model 253

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Remove front lamp unit (E1, E2).		AR82.10-P-4730LW
2	Remove bolts (5).
3	Remove headlamp control unit (E1n9, E2n9); release and disconnect electrical connectors (6).	Ensure that the seal is seated correctly at the headlamp control unit (E1n9, E2n9).
4	Install in the reverse order