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Home >> Mercedes Benz >> 2017 >> G550 >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Electrical System, Equipment & Instruments - 463 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Backup Assist Control Unit - AR54.65-P-0020GR

Remove/Install Backup Assist Control Unit - AR54.65-P-0020GR

Model 463 

with CODE (J44) Ultrasonic backup assist 

except CODE (979) Special protection version 

up to Model year 2013/facelift 2012 

Illustrated on Model 463.303 

G13658911Courtesy of MERCEDES-BENZ USA

Illustrated on Model 463.248 

G13658912Courtesy of MERCEDES-BENZ USA

Shown on Model 463.236 

G13658913Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
  Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries  caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards.
Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.
Only pour liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.
AS54.10-Z-0001-01A 
1 Disconnect battery ground line   AR54.10-P-0003G
NOTES Notes on battery All Models. AH54.10-P-0001-01A 
2 Remove luggage compartment cover with draft stop (A) Only on Model 463.202/250/254/303/309  
    IMPORTANT Three draw buttons per side.  
3 Remove draft stop mounting bracket (B) from quarter panel Only on Model 463.202/250/254/303/309  
    IMPORTANT Only remove on the left side.  
4 Remove stowage box Only on Model 463.222/244/247/322/332/340 with code (V53) Stowage box and luggage compartment cover AR68.72-P-0010GK
    IMPORTANT Remove only at left-hand side.  
5 Remove TV tuner (Europe:USA) (A2/42) Only Model 463.222/236/243/244/245/247/248/250/254/270/271/303/309/322/323/332/333/340/341 with code (EM9) TV tuner AR82.85-P-7366GR
6 Remove CD changer (A2/6) Only on Model 463.243/244/245/247/248/249/250/254/309/322/323/332/333 with code (EP5) CD changer, Model 463.303/340/341 up to 31.8.08 with code (EP5) CD changer AR82.64-P-7508GR
7 Remove backup assist control unit (N62) IMPORTANT To do this, unscrew nuts (3) on backup assist control unit (N62).  
8 Disconnect connector (X26/26) on backup assist control unit (N62)    
9 Disconnect electrical connector (4) on backup assist control unit (N62)    
10 Install in the reverse order    
11 Read out fault memory and erase IMPORTANT STAR DIAGNOSIS
Stored faults which can result from cables being disconnected or from simulation during removal and installation or test work, have to be processed and erased in the fault memories after completing the work.
 
REFER TO SELF DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
12 Perform function test