Remove/install steering gear

AR46.20-S-0500EA

Remove/install steering gear

06.02.2020

Model

447 with engine 651, 654.9

with code ZG2 (Permanent all-wheel drive)

1

Steering gear

5

Cross strut

2

Universal joint

6

Screw

3

Screw

7

Screw

4

Electrical connector

8

Screw

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 

Remove/install

1

Move steering gear (1) to center position.

AR46.20-S-0500-01E

 Retainer device

*129589012100

2

Detach lower engine compartment paneling

AR61.20-S-1105E

3

Remove left transverse control arm from front axle carrier

AR33.20-S-1452EA

 Do not remove transverse control arm from steering knuckle.

4

Remove ball heads of steering gear (1) from steering knuckles

AR46.40-S-7242E

5

Detach universal joint (2) from steering gear (1)

 Remove screw (3) to do this.

 Bolt, universal joint to steering gear

*BA46.20-N-1001-01O

6

Disconnect electrical connectors (4)

7

Remove cross strut (5)

 To do so, remove bolts (6) and (7).

 Screw, cross strut to front axle carrier/integral carrier

*BA33.10-N-1001-01E

 Nut/screw, steering gear to integral carrier or integral carrier diagonal strut

*BA46.20-N-1002-01O

8

Remove steering gear (1)

 To do so, remove screws (8) and remove steering gear (1).

 Nut/screw, steering gear to integral carrier or integral carrier diagonal strut

*BA46.20-N-1002-01O

9

Install in the reverse order

10

Enter new steering number of steering gear (1) in on-line vehicle data card via vehicle documentation (VeDoc)

Only when replacing the steering gear (1).

 Redocumentation is absolutely essential.

11

Run teach-in process on steering gear (1) using diagnostic system

Only when replacing the steering gear (1).



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-S-2000-04E

 Front axle carrier

Number

Designation

Model 447 with engine 651, 654
with code ZG2 (Permanent all-wheel drive)

BA33.10-N-1001-01E

Screw, cross strut to front axle carrier/integral carrier

Nm

31

 Steering gear

Number

Designation

Model 447 with engine 654.9

Model 447 with engine 274, 651
Model 448 with engine 274

BA46.20-N-1001-01O

Bolt, universal joint to steering gear

Stage 1

Nm

15

15

Stage 2

°

180

180

 Steering gear

Number

Designation

Model 447 with engine 654.9

Model 447 with engine 274, 651
Model 448 with engine 274

BA46.20-N-1002-01O

Nut/screw, steering gear to integral carrier or integral carrier diagonal strut

Stage 1

Nm

80

80

Stage 2

°

90

90