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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 Touchpad Control Unit - AR54.21-P-0503FRX

Remove/Install Touchpad Control Unit - AR54.21-P-0503FRX

Model 190 

as of model year 2019 

with code 446 (Touchpad only) 

Model 290 

with code 446 (Touchpad only) 

Shown on model 290 

G16554020Courtesy of MERCEDES-BENZ USA
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Commission touchpad (A105). When replacing touchpad (A105).  
REFER TO SELF-DIAGNOSTIC SYSTEMS   Model 190
as of model year 2019
with code 446 (Touchpad only)
AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Model 290
with code 446 (Touchpad only)
AD00.00-P-2000-06FR
2 Remove center console cover (1). Model 190
as of model year 2019
with code 446 (Touchpad only)
AR68.20-P-2350RG
    Model 290
with code 446 (Touchpad only)
AR68.20-P-2350FRX
3 Disconnect electrical connection (2).    
4 Unscrew bolts (3).    
5 Touchpad (A105).    
6 Install in the reverse order.