Track Control Arm, Ball Joint, Guide Link and Level Control System Sensor Overview
Track Control Arm, Ball Joint, Guide Link and Level Control System Sensor Overview
1 Bolt
• Always replace if removed.
2 Guide Link
• Removing and installing, refer to => [ Guide Link ] Guide Link.
• There are conventional and hydraulic bonded rubber bushings. For the correct allocation, refer to the Electronic Parts Catalog (ETKA).
• A mixed installation is not permitted.
• 65 mm conventional rubber bonded bushing for guide link, replacing, refer to => [ Guide Link Conventional Bonded Rubber Bushing, 65 mm ] Guide Link Conventional Bonded Rubber Bushing, 65 mm.
• Replacing the hydraulic bonded rubber bushing 75 mm for the guide link, refer to => [ Guide Link Hydraulic Bonded Rubber Bushing, 75 mm ] Guide Link Hydraulic Bonded Rubber Bushing, 75 mm.
3 Nut
• 70 Nm + 180° turn
• Always replace if removed.
• Must be tightened in the curb weight position. Refer to => [ Wheel Bearing with Coil Spring, Lifting to Curb Weight Position ] Front Suspension.
4 Wheel Bearing Housing
5 Bolt
• 40 Nm
• Always replace if removed.
6 Nut
• Always replace if removed.
• Different versions, for allocation refer to the Electronic Parts Catalog (ETKA).
• Pay attention to the different nut versions and to the tightening specifications.
• After loosening threaded connection of guide control arm to wheel bearing housing, adhesive residue must be removed on thread of linkage stub.
7 Ball Joint
• Removing and installing, refer to => [ Ball Joint ] Service and Repair.
• Different versions. Allocation, refer to the Electronic Parts Catalog (ETKA).
• Note installation position. Refer to => [ Installing ] Service and Repair.
• Install the ball joint into the wheel bearing housing as far as the contact surface.
8 Nut
• Always replace if removed
• Different versions. Allocation, refer to the Electronic Parts Catalog (ETKA).
• Pay attention to the different nut versions and to the tightening specifications.
• After loosening threaded connection on the ball joint to the wheel bearing housing, adhesive residue must be removed on thread of linkage stub.
9 Nut
• 90 Nm + 90° turn
• Always replace if removed.
• Must be tightened in the curb weight position. Refer to => [ Wheel Bearing with Coil Spring, Lifting to Curb Weight Position ] Front Suspension.
10 Control Arm
• Removing and installing, refer to => [ Track Control Arm ] Track Control Arm.
• Different versions. Allocation, refer to the Electronic Parts Catalog (ETKA).
• Replacing bearings for track control arm. Refer to => [ Track Control Arm Ball Bearing ] Track Control Arm Ball Bearing.
11 Bolt
• Always replace if removed.
12 Nut
• 9 Nm
13 Bolt
• Always replace if removed.
14 Nut
• 70 Nm + 180° turn
• Always replace if removed.
• Must be tightened in the curb weight position. Refer to => [ Wheel Bearing with Coil Spring, Lifting to Curb Weight Position ] Front Suspension.
15 Left Front Level Control System Sensor (G78) or Right Front Level Control System Sensor (G289)
• Install an identical sensor.
• Only remove and install or replace completely. Refer to => [ Level Control System Sensor ] Level Control System Sensor.
• The sensor lever must point toward the back.
• Adjust the headlamp after loosening.
• If the sensor was removed and installed on a vehicle with electronically controlled damping or if the linkage was loosened, the control position must be reprogrammed. Refer to => [ Control Position, Programming using Vehicle Diagnostic Tester ] Testing and Inspection.
• If the control position was reprogrammed on vehicles with lane assist, the directional stabilization assistance control module (J759) must be recalibrated. Refer to => [ Lane Assist Calibration Procedure ] Lane Assist Calibration Procedure.
16 Bolt
• 20 Nm
17 Shock Absorber Fork
Nut Versions for the Control Arm and Guide Control Arm Bracket
• Hex - collar nut - A - M12 wrench 21 mm
Tightening Specification: 145 Nm
• Hex - combination nut - B - M12 18 mm
Tightening Specification: 110 Nm
• Hex - combination nut - B - M12 21 mm
Tightening Specification: 120 Nm
• Hex - combination nut - B - M14 wrench 21 mm
Tightening Specification: 140 Nm