Check Warning And Function Indicators In Instrument Cluster - AP54.30-P-5451F

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Model 118, 177, 247

Courtesy of MERCEDES-BENZ USA

	Preparatory activity
1	Close the engine hood, the liftgate and all doors.
2	Switch electronic ignition lock control unit to position "2" (circuit 15).
3	Operate parking brake.
	Check
4	Check warning lamps (7, 9, 10, 11, 13, 15, 17, 19, 20) and indicator lamps (6, 8, 12, 14, 16, 18) for proper operation.	If problems occur, ↓ rectify the problems. After obtaining special order.
5	Manually switch on low beam.	The low beams indicator lamp (4) must light up and a lamp failure message must not be displayed on the multifunction display (21). If problems occur, ↓ rectify the problems. After obtaining special order.
6	Switch on main beam.	The high beams indicator lamp (3) must light up and a lamp failure message must not be displayed on the multifunction display (21). If problems occur, ↓ rectify the problems. After obtaining special order.
7	Switch on rear fog light.	The rear fog light indicator lamp (5) must light up and a lamp failure message must not be displayed on the multifunction display (21). If problems occur, ↓ rectify the problems. After obtaining special order.
8	Operate service brake and engage reverse gear.	There must be no lamp failure message shown on the multifunction display (21). If problems occur, ↓ rectify the problems. After obtaining special order.
9	Switch on hazard warning system.	The left turn signal light indicator lamp (1) and the right turn signal light indicator lamp (2) flash at the same time on the multifunction display. There must be no lamp failure message shown on the multifunction display (21). If problems occur, ↓ rectify the problems. After obtaining special order.
10	Reset switch positions to input condition.
	Finishing activity
11	Switch electronic ignition lock control unit to position "0".