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Home >> Mercedes Benz >> 2020 >> S450 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 222 Chassis (06 Of 10) >> Maintenance >> Check Lamps In Instrument Cluster And Interior Illumination - AP54.30-P-5453HA

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

Model 217, 222 

G15359769Courtesy of MERCEDES-BENZ USA

Shown on full display digital instrument cluster in model 222, CLASSIC view 

  Preparatory activity     
1 Switch electronic ignition lock control unit to position "2" (circuit 15).    
INSPECT Check     
2 Check preglow system indicator lamp (1). Model 222 with engine 642, 651, 656
IMPORTANT The preglow system indicator lamp (1) must light up and then go out.
If problems occur,
↓
rectify problems.
IMPORTANT After obtaining special order.
 
3 Check coolant temperature display (5) and coolant temperature warning lamp (4). IMPORTANT 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 problems.
IMPORTANT After obtaining special order.
 
4 Check fuel display (8) and fuel reserve warning lamp (7). IMPORTANT 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 problems.
IMPORTANT After obtaining special order.
 
5 Check multifunction display (6) for visible pixel faults, vertical stripes, failed segments or black points. If problems occur,
↓
rectify problems.
IMPORTANT After obtaining special order.
 
6 Manually switch on the exterior lighting. 1    
7 Check instrument lighting. IMPORTANT The tachometer (2) and speedometer (9) must be illuminated.
If problems occur,
↓
rectify problems.
IMPORTANT After obtaining special order.
 
8 Operate instrument lighting brightness control. IMPORTANT The instrument illumination must be brighter or darker to match.
If problems occur,
↓
rectify problems.
IMPORTANT After obtaining special order.
 
9 Manually switch off exterior lighting.    
10 Switch on lamps in rear passenger compartment and check for proper operation. IMPORTANT Interior lights, Reading lamps, Mirror lamps, Glove compartment lamps.
If problems occur,
↓
rectify problems.
IMPORTANT After obtaining special order.
 
11 Switch off lamps in rear passenger compartment.    
  Finishing activity     
12 Switch electronic ignition lock control unit to position "0".