LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2020 >> GLS580 >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Electrical System, Equipment & Instruments - 167 Chassis (2 Of 4) >> Testing & Repair >> Remove/Install Windshield Heater Control Unit - AR54.21-P-0122ME

Remove/Install Windshield Heater Control Unit - AR54.21-P-0122ME

Model 167 

With Code 597 (Heated windshield) 

With Code 93B (Integrated starter alternator Gen. 1.) 

Model 167 

With Code 597 (Heated windshield) 

With Code 94B (Integrated starter alternator Gen. 2) 

Fig 1: Windshield Heater Control Unit Components Location - Model 167 With Code 597; 93B Gen. 1; 2.
G14791216REMOVINGINSTALLINGNOTESIMPORTANTCourtesy of MERCEDES-BENZ USA
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Remove seal on cover (1) in working area.    
2 Unclip retaining clips (2).    
3 Remove cover (1).    
4 Use suitable tool to unclip and remove air intake scoop (3) at arrows.    
5 Unscrew nuts (4) and remove windshield heater control unit (N61) with attached electric lines. NOTES
Do not crush or kink or subject lines to tension This will result in damage to the lines which may impair their functional capability.
IMPORTANT The lower nut (4) is under tension through the windshield heater control unit (N61) and it may spring out when removing.
 
6 Release and disconnect electrical connectors from windshield heater control unit (N61).    
7 Install in the reverse order