Remove/install front axle transverse control arm

AR33.20-S-1452EV

Remove/install front axle transverse control arm

22.11.2019

Model

639.603/703 with engine 780.994

with code MA0 (E-CELL 60 kW)

Modification notes

14.10.2016

Perform wheel alignment check, added

Operation step 13

1

Transverse control arm

2

Bolts

3

Frame-type integral support

4

Steering knuckle

5

Nut

6

Screw

7

Supporting joint

7.1

Sealing bellows

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A

 

Remove/install

1

Raise vehicle using the vehicle lift and secure in place

AR00.60-S-0100S

2

Detach front wheel and tire assembly

AR40.10-S-1100S

3

Unscrew nut (5)

 Bolt with nut, steering knuckle to transverse control arm

*BA33.10-N-1003-01A

4

Pull bolt (6) out of steering knuckle (4)

5

Press supporting ball joint (7) out of steering knuckle (4)

6

Unscrew nuts from bolts (2)

 Installation: Steer the complete wheel to the left or right and tighten the bolts (2) and nuts.

 Bolt, transverse control arm to front subframe

*BA33.10-N-1005-01A

 Screw/bolt, transverse control arm to rear subframe

*BA33.10-N-1006-01A

7

Pull screws/bolts (2) out of transverse control arm (1) and remove transverse control arm (1) from integral carrier (3)



Check

8

Check seal bellows (7.1) on supporting joint (7)

If damage is present



Replace transverse control arm (1).

9

Check supporting joint (7) for tight seating in transverse control arm (1)

If loosely seated



Replace transverse control arm (1).

 Warning

Risk of injury caused by elastomer bearings or bearing parts coming loose suddenly during installation/removal and shooting wildly through the air

Shield hazard area with suitable catch device (basket, iron-barred box). Also ensure that no unauthorized persons are present in the hazard area.

AS00.00-Z-0014-01A

10

Check elastomer bearing on transverse control arm (1)

If wear or damage present



Replace elastomer bearing on transverse control arm (1).

AR33.20-S-1452-01EV

Lubricant

*BR00.45-Z-1032-06A

 Removal and installation tool

*730589004300

11

Clean seat on supporting ball joint (7) and steering knuckle (4)

12

Install in the reverse order

13

Perform wheel alignment check

When replacing transverse control arm (1) or elastomer bearing on transverse control arm (1).

AR40.20-S-0200S

 Front axle carrier

Number

Designation

Model 639.603/703
with code MA0 (E-CELL 60 kW)

BA33.10-N-1003-01A

Bolt with nut, steering knuckle to transverse control arm

Nm

162

 Front axle carrier

Number

Designation

Model 639.603/703
with code MA0 (E-CELL 60 kW)

BA33.10-N-1005-01A

Bolt, transverse control arm to front subframe

Stage 1

Nm

100

Stage 2

°

90

 Front axle carrier

Number

Designation

Model 639.603/703
with code MA0 (E-CELL 60 kW)

BA33.10-N-1006-01A

Screw/bolt, transverse control arm to rear subframe

Stage 1

Nm

100

Stage 2

°

90

Repair materials

Number

Designation

Order number

BR00.45-Z-1032-06A

Lubricant

A 000 989 08 60