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Check lamps in instrument cluster and interior illumination - AP54.30-P-5453EW

MODEL 212 

Fig 1: Identifying Instrument Cluster Warning And Function Indicator Lamps (Model 212)
G10038152Courtesy of MERCEDES-BENZ USA

The presentation is just an example 

INSPECT Check     
1 Switch on ignition and check preglow indicator lamp (2) If installed.
IMPORTANT The preglow indicator lamp (2) must remain lit corresponding to the coolant temperature and then go out.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
2 Check coolant temperature gauge (8) and coolant temperature warning lamp (9) IMPORTANT The pointer of the coolant temperature gauge (8) must indicate the current coolant temperature and the coolant temperature warning lamp (9) must light up.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
3 Check tire pressure monitor warning lamp (6) If installed.
IMPORTANT The tire pressure monitor warning lamp (6) must light up.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
4 Check regenerative braking system indicator lamp (11) If installed.
IMPORTANT The regenerative braking system indicator lamp (11) must light up.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
5 Check CNG indicator lamp (12) If installed.
IMPORTANT The CNG indicator lamp (12) must light up.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
6 Check fuel level indicator (1) IMPORTANT The pointer of the fuel level indicator (1) must indicate the current fuel level in the fuel tank.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
7 Switch on exterior lights manually    
8 Check instrument illumination IMPORTANT All pointer instruments (1, 4, 8, 10, 16) must be illuminated and the background illumination of all displays (5, 7, 12, 13, 14) must have been switched on.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
9 Operate instrument illumination brightness control (14) IMPORTANT The instrument illumination must become brighter or dimmer accordingly.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
10 Check displays (5, 7, 12, 13, 14) for visible pixel faults If the displays (5, 7, 12, 13, 14) exhibit vertical stripes, missing segments or black dots:
↓
Determine and rectify cause, subject to separate repair order.		  
11 Switch on front fog lamps If installed.
IMPORTANT The front fog lamp indicator lamp (3) must light up.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
12 Switch off exterior lights manually    
13 Switch on lamps in passenger compartment and check for proper operation IMPORTANT Check inside rearview mirror, reading, mirror and glove compartment lamps.
If there are problems:
↓
Determine and rectify cause, subject to separate repair order.		  
14 Switch off lamps in passenger compartment and ignition    
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