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Home >> Mercedes Benz >> 2021 >> GT 53 AMG >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Electrical System, Equipment & Instruments (3 Of 4) -- 290 Chassis >> Testing & Repair >> Remove/Install KEYLESS-GO Start/Stop Switch - AR54.25-P-4000FR

Remove/Install KEYLESS-GO Start/Stop Switch - AR54.25-P-4000FR

Model 257 

Model 290 

Shown on model 257 

Fig 1: KEYLESS-GO Start/Stop Switch Components Location - Model 290 (Shown On Model 257)
G16554044REMOVINGINSTALLINGCourtesy 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 Disconnect ground line from battery.   AR54.10-P-0003FR 
2 Remove trim element from passenger-side instrument panel.   AR68.10-P-1187FR
3 Disconnect electrical connector (1).    
4 Unclip KEYLESS-GO start/stop button (S2/3) from catch hooks (arrows) and remove.    
5 Install in the reverse order.