Bulb failures in main headlamps - AF82.10-P-6001C

MODEL 211.### #A up to 231780 except CODE (614) Bi-xenon headlamp unit except CODE (615) Bi-xenon headlamp unit with integrated cornering lamps

MODIFICATION NOTES

19.5.04

Steps 1 and 3 (Disconnect/connect ground cable at onboard electrical system battery) have been deleted

OPERATION NO. OF OPERATION TEXTS OR STANDARD TEXTS AND FLAT RATES

Category	Op. no.	Operation text	Time	Acc. no.	Code
P	821201	Replace defective bulb(s) on lamp of exterior lighting	003 WU	-	-
P	821202	Replace defective bulb(s) on two lamps of front exterior lighting	005 WU	-	-
P	541011	Perform quick test	004 WU	-	-
P	541035	Recode control unit (after checking)	002 WU	-	-

Damage code	Cause	Remedy
82 123 73	H7 bulb defective.	Reduce voltage on bulbs to 12.8 V
	Operating voltage of 13.2 V leads to premature failure of the H7 bulb(s) in one and/ or both lamp units to an increased degree when used as taxi or as daytime running lamps.	As of CD 04/03 available in STAR DIAGNOSIS
		1 Remove/install/replace H7 defective bulb (7).
		2 Connect STAR DIAGNOSIS.
		3 Select "Control unit adaptation" in driver's side SAM and perform menu point: "Reset coding".
		4 Carry out function test.

H7 bulb

Fig 1: Identifying H7 Bulb