Remove/Install Bulbs Of Headlamp Unit - AR82.10-P-1201W

MODEL 172.4

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

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

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

Fig 1: Headlamp Unit - Main And Low Beam Bulbs Components Location - Model 172.4 Except Codes 615, 621, 622 (Shown On The Left Front Headlamp Unit (E1))

Courtesy of MERCEDES-BENZ USA

Shown on the left front headlamp unit (E1)

Fig 2: Headlamp Unit - Front Side And Parking, Turn Signal Lamps Components Location - Model 172.4 Except Codes 615, 621, 622 (Shown On The Left Front Headlamp Unit (E1))

Courtesy of MERCEDES-BENZ USA

Shown on the left front headlamp unit (E1)

Picture item, etc.	Work instructions
	Do not touch the glass bulb elements of the bulbs with fingers, but use a soft cloth free of oil and grease; otherwise the bulbs can be damaged by overheating during operation
	Switch off the exterior lights prior to the bulb replacement in order to avoid a short circuit
	Switch off ignition and remove transmitter key or KEYLESS-GO start/stop button from electronic ignition lock control unit	KEYLESS-GO start/stop button only on vehicles with code (889) Keyless-Go.
	Open service flap in left or right fender liner	When removing left low beam (E1e2) or right low beam (E2e2).
	Remove front bumper	When removing left front standing light and parking light (E1e3) or right front standing light and parking light (E2e3)	AR88.20-P-2000W
E1e1, E2e1	Left high beam, right high beam	Remove housing cover (1). Disconnect electrical connector (3) and remove left high beam (E1e1) or right high beam (E2e1).
E1e2, E2e2	Left low beam, right low beam	Remove housing cover (2). Disconnect electrical connector (4). Release spring U-bolt (5) and remove left low beam (E1e2) or right low beam (E2e2).
E1e3, E2e3	Left front standing light and parking light, right front standing light and parking light	Remove housing cover (7). Pull out standing light and parking light socket (8). Remove left front standing light and parking light (E1e3) or right front standing light and parking light (E2e3) from standing light and parking light socket (8). If no housing cover (7) is present: ↓
		Remove left front headlamp unit (E1) or right front headlamp unit (E2)	AR82.10-P-4730W
		Create service opening at left front headlamp unit (E1) or right front headlamp unit (E2)	AR82.10-P-4730-01W
E1e5, E2e5	Left front turn signal light, right front turn signal light	Turn turn signal lights socket (6) approx. 30° counterclockwise and remove. Remove left front turn signal light (E1e5) or right front turn signal light (E2e5) from turn signal light socket (6).