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Home >> Mercedes Benz >> 2017 >> GLC300 Base >> Repair and Diagnosis >> Transmission >> Transfer Case - 253 Chassis >> Testing & Repair >> Remove/Install Transfer Case Control Unit - AR28.19-P-1003MNG

Remove/Install Transfer Case Control Unit - AR28.19-P-1003MNG

Transmission 725.09 in model 253 with engine 177 with code M005 (4MATIC) 

G12817486Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.
AS00.40-Z-0001-01A
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
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1
REFER TO MAINTENANCE
Drain transmission oil from transfer case (4)
Transfer case - oil change
  AP28.00-P-2801B 
2 Release and disconnect electrical connection (2)    
3 Remove screws (3) TORQUE SPECIFICATION Bolt control unit to transfer case *BA28.10-P-1010-01G 
4 Remove all-wheel drive control unit (N45) downwards NOTESInstallation:  The lugs of the all-wheel drive control unit (N45) must latch into the grooves in the transfer case (4).
Damage will otherwise occur.
IMPORTANTInstallation:  Replace seals.
 
5 Install in the reverse order    
6 Commission the 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
7 Perform engine test run, while doing so check transfer case (4) for proper operation and leak tightness    
COMPLETE TRANSFER CASE

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