Check Lamps In Instrument Cluster And Interior Illumination - AP54.30-P-5453G

Model 463 

as of Model year 2019 

Shown on instrument cluster in Model 463.349 with code J25 (Widescreen cockpit), CLASSIC view 

Fig 1: Instrument Cluster Mechanical Gauges And Warning Indicator Lamps Components Location - Model 463 As Of M.Y. 2019 (Shown In Model 463.349 With Code J25, CLASSIC View)

Courtesy of MERCEDES-BENZ USA

	Preparatory activity
1	Switch electronic ignition lock control unit to position "2" (circuit 15).
	Check
2	Check preglow system indicator lamp (1).	Model 463 with engine 656 as of Model year 2019 The preglow system indicator lamp (1) must light up and then go out.
		If problems occur, ↓ rectify the problems. After obtaining special order.
3	Check coolant temperature display (5) and coolant temperature warning lamp (4).	The display of the coolant temperature gauge (5) must show the corresponding coolant temperature and the coolant temperature warning lamp (4) must light up.
		If problems occur, ↓ rectify the problems. After obtaining special order.
4	Check fuel display (8) and fuel reserve warning lamp (7).	The fuel display (8) must show the corresponding fuel level in the fuel tank, and the fuel reserve warning lamp (7) must light up.
		If problems occur, ↓ rectify the problems. After obtaining special order.
5	Check multifunction display (6) for visible pixel faults, vertical stripes, failed segments or black points.	If problems occur, ↓ rectify the problems. After obtaining special order.
6	Manually switch on the exterior lighting.
7	Check instrument lighting.	The tachometer (2) and speedometer (9) must be illuminated.
		If problems occur, ↓ rectify the problems. After obtaining special order.
8	Operate instrument lighting brightness control.	The instrument illumination must be brighter or darker to match.
		If problems occur, ↓ rectify the problems. After obtaining special order.
9	Manually switch off exterior lighting.
10	Switch on lamps in rear passenger compartment and check for proper operation.	Interior lights, Reading lamps, Mirror lamps, Glove compartment lamps.
		If problems occur, ↓ rectify the problems. After obtaining special order.
11	Switch off lamps in rear passenger compartment.
	Finishing activity
12	Switch electronic ignition lock control unit to position "0".