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Home >> Mercedes Benz >> 2003 >> CLK55 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Accessories Control Systems >> Electrical System, Equipment & Instructions -- Basic Knowledge - 209 Chassis >> Basic Knowledge >> Upper control panel control unit, location / task / design / function - GF54.21-P-4105Q >> Notes
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Upper control panel control unit, location / task / design / function - GF54.21-P-4105Q: Notes

MODEL 209.3/ 4 

Shown on model 209.3 up to 31.5.04 

Fig 1: Identifying Upper Control Panel Control Unit - Shown On Model 209.3 Up To 31.5.04
G04733623
  Upper control panel control unit, location The upper control panel control unit (N72/1) is located in the center console.  
  Upper control panel control unit, task On vehicles up to 31.5.04 GF54.21-P-4105-02Q 
    On vehicles as of 1.6.04 GF54.21-P-4105-02QA 
  Upper control panel control unit, design On vehicles up to 31.5.04 GF54.21-P-4105-03Q 
    On vehicles as of 1.6.04 up to 31.8.04 GF54.21-P-4105-03QA 
    On vehicles as of 1.9.04 GF54.21-P-4105-03QB 
  Upper control panel control unit, function The upper control panel control unit (N72/1) operates with its own microprocessor which reads in switches, actuates the corresponding semiconductor switches and exchanges data with the Controller Area Network bus class B (interior) (CAN-B).