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Home >> Mercedes Benz >> 2021 >> GLB250 Base >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 247 Chassis >> Testing & Repair >> Remove/Install All-Wheel Drive Control Unit - AR27.19-P-1720MFA
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Remove/Install All-Wheel Drive Control Unit - AR27.19-P-1720MFA

Transmission 724.1 in model 118, 177, 247 

with code M005 (Vehicles with 4 MATIC/all-wheel drive) 

MODIFICATION NOTES

15.03.2022 Document completely revised.    
Fig 1: All-Wheel Drive Control Unit Components Location - Transmission 724.1 In Model 247 (Shown On Model 177.0)
G14688636Courtesy of MERCEDES-BENZ USA

Shown on model 177.0 

G14688637Courtesy 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
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on HANDS-FREE ACCESS   AH80.61-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove left and right side trunk lining. Transmission 724.1 in model 247.6
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
AR68.30-P-4801MFX
    Transmission 724.1 in model 118.3, 177.1/9
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
AR68.30-P-4800MFV
    Transmission 724.1 in model 118.6
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
AR68.30-P-4800MFD
    Transmission 724.1 in model 247.0/7
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
AR68.30-P-4800MFB
    Transmission 724.1 in model 177.0
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
AR68.30-P-4800MFA
2 Remove speaker amplifier control unit. Transmission 724.1 in model 247.6
with code 810 (Premium sound system)
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
except code 853 ("Midline" sound system)
AR82.62-P-7720MFX
    Transmission 724.1 in model 118, 177, 247.0/7
with code 810 (Premium sound system)
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
except code 853 ("Midline" sound system)
AR82.62-P-7720MFB
    Transmission 724.1 in model 118, 177, 247
with code 853 ("Midline" sound system)
with code M005 (Vehicles with 4 MATIC/all-wheel drive)
AR82.62-P-7720MFA
3 Remove support (5).    
4 Remove nuts (1).    
5 Lift holder (2) far enough until the nuts (3) and the electrical connector (4) are accessible. NOTES Do not crush or kink or subject lines to tension This leads to damage to the lines and impairs their function.  
6 Remove nuts (3).    
7 Release and disconnect electrical connector (4).    
8 Detach all-wheel drive control unit (N15/17) from holder (2) and remove upwards.    
9 Install in the reverse order.    
10 Perform commissioning of all-wheel drive control unit (N15/17). When replacing the all-wheel drive control unit (N15/17).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA