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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 257 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Drive Unit Control Unit - AR27.19-P-0050FR

Remove/Install Drive Unit Control Unit - AR27.19-P-0050FR

Model 257 with engine 256 

with code M016 (Uprated engine) 

G14548374Courtesy of MERCEDES-BENZ USA
G14548375Courtesy 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
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Disconnect ground line from battery.   AR54.10-P-0003FR
2 Remove floor covering at front on front passenger side.   AR68.80-P-0008FR
3 Remove nuts (1).    
4 Remove bracing (2).    
5 Release and disconnect electrical connection (3).    
6 Remove nut (4).    
7 Remove voltage converter (5).    
8 Fold down holder (6) until electrical connectors (7) are accessible.    
9 Release and disconnect electrical connectors (7).    
10 Remove Drive Unit control unit (N145/1).    
11 Install in the reverse order.    
12 Commission Drive Unit control unit (N145/1).    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06FR
    IMPORTANT When replacing Drive Unit control unit (N145/1).