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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 DC/AC Converter Control Unit - AR54.21-P-1600FRX

Remove/Install DC/AC Converter Control Unit - AR54.21-P-1600FRX

Model 290 

with code U67 (230 V socket in rear passenger compartment) 

Model 290 

with code U80 (115 V socket) 

Shown on model 290 with code 865 (TV tuner) and code 550 (Trailer hitch) 

Fig 1: DC/AC Converter Control Unit Components Location - Model 290 With Code U67, U80
G16554034WARNINGDANGERREMOVINGINSTALLINGCourtesy of MERCEDES-BENZ USA
WARNING Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
DANGER Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. AS00.00-Z-0035-01A
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
  Notes on HANDS-FREE ACCESS   AH80.61-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove side trim in right load compartment.   AR68.30-P-1185FRX
2 Detach ground line of on-board electrical system battery.   AR54.10-P-0003FR 
3 Remove holder (1) and place to one side with electric lines connected.    
4 Disconnect electrical connection (3).    
5 Unscrew nuts (2) and remove DC/AC converter control unit (N24/3).    
6 Install in the reverse order.