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Home >> Mercedes Benz >> 2009 >> E550 Base >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle -- E550 (211.072) >> Testing & Repair >> Remove/install upper control arm - AR33.20-P-0500T

Remove/install upper control arm - AR33.20-P-0500T

MODEL 211.0 /2 /6 (except 211.08 /09 /28 /29) 

Fig 1: Identifying Upper Control Arm Components
G07506737Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown on model 211 with steel suspension 

MODIFICATION NOTES

9.8.08 "SWZ 140 589 00 33 00 for prying off upper ball joint" added Step 3 AR33.20-P-0500-01N 
REMOVINGINSTALLING Remove/install     
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
NOTES When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the parts will be affected    
INSTALLATION IMPORTANT Only tighten nuts and bolts of chassis components when vehicle is in a ready-to-drive condition.    
1 Empty front spring strut using STAR DIAGNOSIS Vehicles with AIRmatic (semi-active air suspension), code 489  
NOTES Notes on AIRmatic   AH32.22-P-1000-02T
2 Remove front wheel    
REFER TO MAINTENANCE Remove/install wheels   AP40.10-P-4050Z
3 Press follower joint (8) out of steering knuckle (5) IMPORTANT Secure steering knuckle (5) to prevent it from swinging away. The brake hose and electrical feed cables must not be stretched. AR33.20-P-0500-01N 
SPECIAL TOOL Figure
SPECIAL TOOL Figure
SPECIAL TOOL Figure
TORQUE SPECIFICATION *BA33.20-P-1018-01A 
  Left transverse control arm     
4 Remove left front suspension strut. Vehicles with AIRmatic (semi-active air suspension), code 489 AR32.25-P-1017TA
Vehicles without Airmatic (semi-active air suspension) AR32.25-P-1017TS
5 Remove fuse box Vehicles up to 31.5.06
Vehicles as of 1.6.06
AR54.15-P-1257T
6 Detach upper wishbone (6) from front end TORQUE SPECIFICATION *BA33.20-P-1007-01A 
REFER TO COMPONENT MODIFICATIONS Upper transverse control arm modified As of 1.2.03 BT33.20-P-0500-01A 
7 Inspect follower joint (8). IMPORTANT If necessary, replace follower joint (8) or upper transverse control arm (6). AR33.20-P-0425I 
  Right transverse control arm     
8 Remove right front suspension strut Vehicles with AIRmatic (semi-active air suspension), code 489 AR32.25-P-1017TA
Vehicles without Airmatic (semi-active air suspension) AR32.25-P-1017TS
9.1 Remove air filter housing (9a)    
REFER TO MAINTENANCE Replace dust filter Vehicles with code (581) Comfort automatic air conditioning
up to VIN end no. A635991
X170336
AP83.00-P-8381T
9.2 Remove combination filter housing (9b).    
REFER TO MAINTENANCE Replace combination filter Vehicles with code (580) Automatic air conditioning or
Vehicles with code (581) Comfort automatic air conditioning
as of VIN end no. A635992
X170337
AP83.00-P-8384T
10 Detach upper wishbone (6) from front end TORQUE SPECIFICATION *BA33.20-P-1007-01A 
REFER TO COMPONENT MODIFICATIONS Upper transverse control arm modified As of 1.2.03 BT33.20-P-0500-01A 
    SPECIAL TOOL Fig 2
    SPECIAL TOOL Fig 3
    SPECIAL TOOL Fig 4
11 Inspect follower joint (8). IMPORTANT If necessary, replace follower joint (8) or upper transverse control arm (6). AR33.20-P-0425I 
12 Install in the reverse order    
WHEEL LOCATION, HUB

Number Designation Model 211 except 211.08/09/28/29
BA33.20-P-1007-01A Self-locking nut of upper wishbone on front end Nm 50
BA33.20-P-1018-01A Self-locking nut, upper wishbone follower joint to steering knuckle Stage 1 Nm 20
Stage 2 ∠° 90
Fig 2: Identifying Plug-In Joint Adapter (001 589 00 16 00)
G07506738Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Torque Tool Set (003 589 05 09 00)
G07506739Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 4: Identifying Plug-In Wrench (003 589 06 09 00)
G07506740Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 5: Identifying Puller (140 589 00 33 00)
G07506741Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 6: Identifying Thrust Washer M 10X1.5 (210 589 04 63 00)
G07506742Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 7: Identifying Puller (202 589 02 33 00)
G07506743Courtesy of MERCEDES-BENZ OF NORTH AMERICA.