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Home >> Mercedes Benz >> 2019 >> S450 Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Transfer Case - 222 Chassis >> Testing & Repair >> Remove/Install Transfer Case/All-Wheel Drive Control Unit - AR28.19-P-1003MNM
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Remove/Install Transfer Case/All-Wheel Drive Control Unit - AR28.19-P-1003MNM

Transmission 725.09 in Model 217, 222 with engine 177 

with Code M005 (Vehicles with 4MATIC/All-wheel drive) 

G15367024Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Release and disconnect electrical connector (2).    
2 Remove screw/bolts (3). TORQUE SPECIFICATION Bolt, control unit to transfer case *BA28.10-P-1010-01G 
3 Remove all-wheel drive control unit (N45) downwards. INSTALLATION NOTES
The catch hooks of the all-wheel drive control unit (N45) must engage in the grooves in the transfer case (4).
Damage will otherwise occur.
INSTALLATION IMPORTANT Replace seals.
 
4 Install in the reverse order.    
5 Commission all-wheel drive control unit (N45). When replacing the all-wheel drive control unit (N45).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
6 Perform engine test run; while doing so, check transfer case (4) for proper operation and leak tightness.    
COMPLETE TRANSFER CASE

Number Designation Model 205, 206, 213, 217, 218, 222, 223, 238, 253, 257, 290 with transmission 725.0/1 with code M005 (Vehicles with 4MATIC/all-wheel drive)
BA28.10-P-1010-01G Bolt, control unit to transfer case Nm 24