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Lower rear axle - AR35.10-P-0015EW

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MODEL 212, 218 

MODIFICATION NOTES

17.12.14 Stop plate to body screw MODEL 212 BA35.10-P-1003-01N
17.12.14 Stop plate to body screw MODEL 218 BA35.10-P-1003-01N
Fig 1: Lower Rear Axle Components
G09976299DANGERNOTESNOTESIMPORTANTREFER TO SELF-DIAGNOSTIC SYSTEMSINSTALLATION NOTESREFER TO MAINTENANCETORQUE SPECIFICATIONIMPORTANTIMPORTANTINSTALLATION NOTESINSTALLATION IMPORTANTTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSTALLATION NOTESINSTALLATION IMPORTANTNOTESNOTESCourtesy of MERCEDES-BENZ USA
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
NOTES Notes on AIRmatic   AH32.22-P-1000-02EW
IMPORTANT Notes on repair work on suspension components   AH00.00-P-0100-01A
  Lower rear axle     
1 Move transmission into neutral or idle position and release parking brake    
2 Empty air springs using diagnostic system MODEL 212.0/1, 218
with CODE 488 (Steel/air suspension)
MODEL 212.0/1, 218
with CODE 489 (AIRMATIC)
MODEL 212.2		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    INSTALLATION NOTES
The air spring must be filled as per the specifications.
Otherwise, the air spring may suffer initial damage and it may malfunction at a later stage.		  
3.1 Switch off ignition and remove transmitter key from electronic ignition lock control unit MODEL 212, 218
without CODE 889 (KEYLESS-GO)		  
3.2 Switch off ignition and remove transmitter key or KEYLESS-GO start/stop button from electronic ignition lock control unit MODEL 212, 218
with CODE 889 (KEYLESS-GO)		  
4 Secure vehicle on vehicle lift   AR00.60-P-0100EWS
5 Remove rear road wheels    
REFER TO MAINTENANCE     AP40.10-P-4050EW
6 Release left and right underfloor paneling (1) in the area of the front axle threaded connection When lowering rear axle in front area.  
7 Remove left and right rear diagonal strut MODEL 212.2, 218.9  
TORQUE SPECIFICATION Bolt, rear diagonal strut bracket mount to body *BA61.10-P-1006-01H 
8 Release heat shield (5) on the left IMPORTANT This serves to ensure that when the rear axle is lowered later on, the left heat shield (5) is not bent by the center brake cable.  
9 Remove both exhaust tips MODEL 212
with CODE 772 (AMG styling package - front spoiler, side skirts and rear apron)
MODEL 212
with CODE 950 (AMG Sports package)
MODEL 212
with CODE 954 (Avantgarde)
MODEL 212
with CODE P96 (Sports Package - exterior)
MODEL 218
as of model year 2015
MODEL 218
up to model year 2014
with CODE 772 (AMG styling package - front spoiler, side skirts and rear apron)
MODEL 218
up to model year 2014
with CODE B16 (Two-pipe exhaust system)
MODEL 218
up to model year 2014
with CODE P96 (Sports Package - exterior)		  
10 Unhook exhaust system from support rings on rear axle differential (50)    
11 Detach support rings from rear axle differential (50)    
12 Secure exhaust system at rear mufflers (6) against falling down    
13 Unhook rear muffler (6) at rear support rigs    
14 Slacken off threaded connections of propeller shaft center support bearing on frame floor assembly by 3 or 4 turns   AR41.10-P-0050EW
15 Detach drive shaft (7) from rear axle differential (50)   AR41.10-P-0050EW
IMPORTANT The flexible coupling remains on the propeller shaft (7).
16 Support rear axle carrier (4) on rear axle differential (50) using telescopic lifter and transmission plate and lash down Transmission jack
Transmission platform		  
17 Unclip electrical line of left rear-axle rpm sensor (L6/3) from bracket (8) on left wheel carrier    
18 Unclip electrical line of right rear-axle rpm sensor (L6/4) from bracket (8) on right wheel carrier    
19 Unclip electrical line of right rear brake wear sensor from bracket (8) on right wheel carrier    
20 Unclip electrical line of left rear-axle damping valve unit from bracket (8) on left wheel carrier MODEL 212.0/1, 218
with CODE 488 (Steel/air suspension)
MODEL 212.0/1, 218
with CODE 489 (AIRMATIC)
MODEL 212.2		  
21 Unclip electrical line of right rear-axle damping valve unit from bracket (8) on right wheel carrier MODEL 212.0/1, 218
with CODE 488 (Steel/air suspension)
MODEL 212.0/1, 218
with CODE 489 (AIRMATIC)
MODEL 212.2		  
22 Unclip rubber mount (12) of rear brake cable from bracket (11)    
23 Remove covers from spring control arms (9) When lowering rear axle in rear area.  
24.1 Remove steel springs MODEL 212.0/1, 218
without CODE 488 (Steel/air suspension)
without CODE 489 (AIRMATIC)
When lowering rear axle in rear area.		  
AR32.20-P-0230EW
24.2 Remove air springs MODEL 212.0/1, 218
with CODE 488 (Steel/air suspension)
MODEL 212.0/1, 218
with CODE 489 (AIRMATIC)
MODEL 212.2
When lowering rear axle in rear area.		  
AR32.22-P-1500EW
25.1 Remove bolts (2s, 3s) and remove stop plates (3) When lowering rear axle in front area.
INSTALLATION NOTES
The threads in the frame floor assembly must be recut and blown out as any adhesive residue in the thread will prevent the bolts (2s, 3s) from achieving the required preload force, even when tightened to the specified torque and specified angle of rotation.
If this is not observed, then the faulty bolt preload force will cause bending forces to act on the bolts (2s, 3s), which could ultimately lead to bolt fracture.
INSTALLATION IMPORTANT Replace bolts (2s, 3s).		  
TORQUE SPECIFICATION Self-locking bolt of front elastomer bearing on rear axle carrier to frame floor assembly *BA35.10-P-1001-01N 
TORQUE SPECIFICATION Bolt, stop plate to body *BA35.10-P-1003-01N 
25.2 Remove screws/bolts (10) When lowering rear axle in rear area.
INSTALLATION NOTES
The threads in the frame floor assembly must be recut and blown out as any adhesive residue in the thread will prevent the bolts (10) from achieving the required preload force, even when tightened to the specified torque and specified angle of rotation.
If this is not observed, then the faulty bolt preload force will cause bending forces to act on the bolts (10), which could ultimately lead to bolt fracture.
INSTALLATION IMPORTANT Replace bolts (10).		  
26.1 Lower rear axle carrier (4) in front area When lowering rear axle in front area.
NOTES
Pay attention to fuel lines and electrical cables when lowering.
Otherwise the lines may be damaged.		  
26.2 Lower rear axle carrier (4) in rear area When lowering rear axle in rear area.
NOTES
Pay attention to fuel lines and electrical cables when lowering.
Otherwise the lines may be damaged.		  
27 Install in the reverse order    
REAR AXLE CARRIER

Number Designation MODEL 212 MODEL 218
BA35.10-P-1001-01N Self-locking bolt of front elastomer bearing on rear axle carrier to frame floor assembly Stage 1 Nm 80 80
Stage 2 loosen loosen
Stage 3 Nm 80 80
Stage 4 ∠° 90 90
REAR AXLE CARRIER

Number Designation MODEL 212 MODEL 218
BA35.10-P-1003-01N Bolt, stop plate to body Nm 30 30
FRAME FLOOR ASSEMBLY

Number Designation MODEL 212 MODEL 218
BA61.10-P-1006-01H Bolt, rear diagonal strut bracket mount to body Nm 60 60
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