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W116 (1972-1980, petrol) W126 (1979-1991, petrol) W140 (1991-1998) W220 (1998-2005)
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  • S-Class
  • W140 (1991-1998)
  • Chassis
  • Front suspension
  • Replacing the upper control arm

Replacing the upper control arm (Mercedes-Benz S-Class W140)

0
Contents: Removal ↡ Installation ↡

Removal



1. Separate the steering knuckle (5) from the upper arm (6) - if necessary, use puller No.140 589 02 31 00. Try not to put tension on the brake hose and electrical wiring.

1. Separate the steering knuckle (5) from the upper arm (6) - if necessary, use puller No.140 589…


2. Unscrew the nuts (6b) securing the bearing axle assembly holder (6a) to the frame.

2. Unscrew the nuts (6b) securing the bearing axle assembly holder (6a) to the frame.


Installation



1. When installing, proceed in the reverse order of dismantling the components.

2. After installing the lever on the frame, tighten the axle mounting nuts to 50 Nm, then loosen the axle self-locking nut (6e) and adjust the lever position so that distance A is equal to 63 mm. Tighten the self-locking nut to 120 Nm.

2. After installing the lever on the frame, tighten the axle mounting nuts to 50 Nm, then loosen…


3. Tighten the self-locking nut securing the lever to the steering knuckle with a force of 125 Nm.
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The article has been verified: Polyakov Zakhar Grigorievich
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S-Class W140 / Front suspension
Next ▶

Checking the condition of the upper ball joint
Removal and installation the lower ball joint
Adjusting the clearance in the front wheel bearing
Removal and installation the front suspension
Replacing the lower control arm
Removal, checking and installation the front wheel hub
Removal and installation the steering knuckle assembly
Removal and installation a coil spring
Removal and installation the anti-roll bar
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W220 (1998-2005) 
  • General information
  • Introduction to guide
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  • Chassis
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  • Front suspension
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W140 (1991-1998) 
  • User manual
  • Controls and instruments
  • Driving and operation
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  • Petrol engine V6
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  • Power supply and injection system
  • Control system HFM-SFI
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  • Transmission
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  • Body
  • Exterior (external elements)
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W126 (1979-1991, petrol) 
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  • Fuel injection system
  • Transmission
  • Clutch and cardan
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  • Chassis
  • Front suspension
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  • Electrical equipment
  • Power devices
  • Electrical circuits
W116 (1972-1980, petrol) 
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  • Introduction to guide
  • Power unit
  • 8-cylinder V8 engine
  • 6-cylinder I6 engine
  • Cooling and lubrication system
  • Power system (carburetor)
  • Fuel injection system
  • Ignition system
  • Transmission
  • Clutch and cardan
  • Car gearbox
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Brake system
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  • Power devices
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