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Remove/install right trailer hitch longitudinal member - AR31.30-P-0006EW

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MODEL 212.0/2 with CODE 550 (Trailer coupling) 

Fig 1: Right Trailer Hitch Longitudinal Member Remove/Install Components (1 Of 2)
G09976050Courtesy of MERCEDES-BENZ USA
Fig 2: Right Trailer Hitch Longitudinal Member Remove/Install Components (2 Of 2)
G09976051Courtesy of MERCEDES-BENZ USA
IMPORTANT Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
IMPORTANT Notes on installing a trailer hitch   AH31.10-P-1000-02CW
REMOVING Remove     
1 Remove rear bumper   AR88.20-P-2200EW
2 Remove cover in the lining on the right-hand side of the trunk or load compartment    
3 Remove spare tire with CODE 690 (emergency spare tire (minispare)) with CODE R66 (Run-flat tire)  
4 Remove right cargo baggage rail (9) with CODE 942 (EASY-PACK fixkit)  
5 Detach right load compartment floor support (8) IMPORTANT Fold the load compartment floor support (8) upwards or to the side.  
6 Remove crossmembers of the trailer hitch (1)   AR31.30-P-0007EW 
7 Unscrew screws/bolts (5) of the right-hand longitudinal member reinforcement (3)    
8 Pull right longitudinal member reinforcement (3) with seal (4) out of right vehicle longitudinal member and remove    
9 Remove seal (4) from right longitudinal member reinforcement (3)    
INSTALLING Install     
10 Recut thread for bolts (5) of right longitudinal member reinforcement (3) IMPORTANT When reusing the right longitudinal member reinforcement (3).  
11 Slide seal (4) over right longitudinal member reinforcement (3) IMPORTANT Check seal (4) is correctly positioned. The upper side of the seal (4) is marked with an arrow. Moisten the inside of the seal (4) with lubricant.  
12 Slide right longitudinal member reinforcement (3) into right vehicle longitudinal member    
13 Position right longitudinal member reinforcement (3) on vehicle longitudinal member, and screw in bolts (5) with washers up to the contact surface IMPORTANT The right longitudinal member reinforcement (3) must be capable of being moved to enable the trailer hitch to be aligned. Replace bolts (5).  
14 Tighten bolts (5) on right longitudinal member reinforcement (3) TORQUE SPECIFICATION Bolt, longitudinal member reinforcement to frame side member *BA31.11-P-1003-01J 
15 Install crossmember for trailer hitch (1)   AR31.30-P-0007EW 
16 Attach right load compartment floor support (8)    
17 Install right cargo baggage rail (9) with CODE 942 (EASY-PACK fixkit)  
18 Install spare tire with CODE 690 (emergency spare tire (minispare)) with CODE R66 (Run-flat tire)  
19 Install rear bumper   AR88.20-P-2200EW
20 Install cover in the lining on the right-hand side of the trunk or load compartment    
INSPECT Check     
21 Conduct function check on mechanical swing-away trailer hitch   AR31.19-P-1450EW 
TRAILER HITCH MECHANISM

Number Designation MODEL 212
BA31.11-P-1003-01J Bolt, longitudinal member reinforcement to frame side member Nm 85