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Home >> Mercedes Benz >> 2021 >> Maybach GLS600 >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - 167 Chassis >> Testing & Repair >> Remove/Install Front Upper Control Arm - AR33.20-P-0500ME

Remove/Install Front Upper Control Arm - AR33.20-P-0500ME

Model 167 

Fig 1: Front Upper Control Arm Components Location - Model 167 (Shown On Right Side Of Vehicle)
G13956663Courtesy of MERCEDES-BENZ USA

Shown on right side of vehicle 

G13956664Courtesy of MERCEDES-BENZ USA
Notice  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001 -01KOA
  Notes on safety-relevant components   AH00.00-Z-0019-01A
  Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Remove left or right suspension strut. Model 167
except code 489 (AIRMATIC Dual Control/semi-active air suspension) except code 490 (Electrohydraulic suspension)
AR32.25-P-1017ME
    Model 167
with code 489 (AIRMATIC Dual Control/semi-active air suspension) except code 490 (Electrohydraulic suspension)
Model 167
with code 489 (AIRMATIC Dual Control/semi-active air suspension)
with code 490 (Electrohydraulic suspension)
AR32.25-P-1017MEH
2 Unhook level sensor linkage (5) from upper transverse control arm (1). Model 167
with code 489 (AIRMATIC Dual Control/semi-active air suspension)
Model 167
with code 613 (headlights left-hand-traffic) Model 167
with code 620 (Right-hand traffic headlamps) Model 167
with code 631 (Static LED headlamps, left-hand traffic)
Model 167
with code 632 (Headlamps, LED, static, right-side traffic)
Model 167
with code 640 (SAE dynamic LED headlamps, right-hand traffic)
Model 167
with code 641 (Dynamic LED headlamps, left-hand traffic)
Model 167
with code 642 (Dynamic LED headlamps, right-hand traffic)
IMPORTANT The number of level sensors varies depending on the vehicle equipment.
INSTALLATION IMPORTANT Pay attention to installation position of sensor.
AR82.10-P-0006ME
3.1 Unclip pollen filter housing (6) at side and remove. When removing upper transverse control arm (1) on right side of vehicle.  
3.2 Remove brake fluid expansion reservoir. When removing upper transverse control arm (1) on left side of vehicle. AR42.10-P-0308ME
4.1 Detach nuts, remove engine compartment fuse and relay module (F152/3) including housing (7) and place to one side with lines connected so that the nuts (3) are accessible. When removing upper transverse control arm (1) on left side of vehicle.
NOTES
Do not crush or kink or subject lines to tension This will result in damage to the lines which may impair their functional capability.
AR54.15-P-0005ME
4.2 Detach coolant expansion reservoir and place to one side with lines connected. When removing upper transverse control arm (1) on right side of vehicle.
Model 167 with engine 256.9
AR20.30-P-4949MSC
Model 167 with engine 264, 274 AR20.30-P-4949MRK
Model 167 with engine 176, 177 AR20.30-P-4949MNO
Model 167 with engine 654, 656
NOTES
Do not crush or kink or subject lines to tension This will result in damage to the lines which may impair their functional capability.
AR20.30-P-4949OID
5 Remove nut (2). TORQUE SPECIFICATION Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle *BA33.20-P-1001-01W 
6 Detach nuts (3) and remove screws (4). INSTALLATION IMPORTANT Install additional spacer disk to allow torque angle tightening via the screw (4).
TORQUE SPECIFICATION Self-locking nut, upper transverse control arm to front end
*BA33.20-P-1002-01W 
7 Remove upper transverse control arm (1).    
INSPECT Check     
8 Check upper transverse control arm (1) for damage. If there is damage on upper transverse control arm (1),

Replace upper transverse control arm (1).
 
9 Install in the reverse order.    
  Finishing activity     
10 Perform chassis alignment.   AR40.20-P-0200ME
WHEEL CONTROL, HUB

Number Designation Model 167
BA33.20-P-1001-01W Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle Stage 1 Nm 75
Stage 2 ∠° 45
WHEEL CONTROL, HUB

Number Designation Model 167
BA33.20-P-1002-01W Self-locking nut, upper transverse control arm to front end Stage 1 Nm 50
Stage 2 ∠° 90