Mercedes-Benz ML320. Manual — part 821

Steel spring suspension of front axle

Repair materials

REMOVE/INSTALL REAR SPRING - AR32.20-P-0230GH

MODEL 163.113 /128 /136 /154 /157 /172 /174 /175

1

Remove, Install

Risk of fatal accident from
vehicle slipping or toppling off
the lift platform
Jack up vehicle

Align vehicle between the columns of lifting
platform and position the four support plates
below the support strong points specified by the
vehicle manufacturer.

AS00.00-Z-
0010-01A

2

Measure spring preload of
torsion bar spring (16a) using
caliper gage at bore

Installation: Restore spring preload.

3

Unscrew bolt (16c) and then
release tension of torsion bar
spring (16a)

Installation: regrease bolt (16c). The rubber

bellows (16i) must be filled with grease.

*BR00.45-Z-
1005-06A

4

Undo bolt (16f) in profile sleeve
(16e).

*BA32.20-P-
1001-01A

5

Slide back profile sleeve (16e).

6

Remove torsion bar spring
(16a).

Installation: The position of the torsion bar

spring (16a) relative to the clamping lever (16d)
is indicated (arrow).

7

Loosen bolt (16h). Remove end
cover (16g).

*BA32.20-P-
1002-01A

8

Remove torsion bar spring (16a)
from clamping lever (16d).

Installation: Grease gearing on torsion bar

spring. Observe markings.

*BR00.45-Z-
1005-06A

9

Install in the reverse order

10

Check vehicle level at front and
rear axles with electronic
inclinometer and adjust if
necessary.

AR40.20-P-
0301GH

11

Check and correct headlamp
adjust
Check and correct headlamp
adjustment

AP82.10-P-
8260GH

Number

Designation

Model 163

BA32.20-P-1001-01A

Bolt on profile sleeve

NM 23

BA32.20-P-1002-01A

Bolt in end cover

NM approx.23

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste

A 000 989 76 51

2001 Mercedes-Benz ML320

1998-2005 SUSPENSION Suspension - 163 Chassis

me

Fig. 8: Identifying Rear Spring Components

Remove/Install

Risk of injury with
trapped or crushed
fingers when working on
springs or spring-loaded
components

Use only approved
tensioning devices;
additionally shield off
hazardous area if
necessary.
Inspect special tools for
damage and proper
operation (visual
inspection).
Wear protective gloves.

AS00.00-Z-0001-01A

Notes on self-locking nuts
and bolts

All models

AH00.00-N-0001-01A

1

Remove spring strut from
rear axle

AR32.25-P-1016GH

2

Remove shock absorber
from spring strut

AR32.25-P-0200-07GH

*BA32.25-P-1003-03D

Spring

compressor

Fig. 2

Tensioning plates Fig. 3

3

Unclamp rear spring

Installation: ?

2001 Mercedes-Benz ML320

1998-2005 SUSPENSION Suspension - 163 Chassis

me

Rear axle shock absorber

Fig. 9: Identifying Tensioning Device (203 589 01 31 00)

Fig. 10: Identifying Tensioning Plates (163 589 00 63 00)

REMOVE/INSTALL TORSION BAR ON FRONT AXLE - AR32.20-P-0300GH

MODEL 163.113 /128 /136 /154 /157 /172 /174 /175

Compress rear spring.

AR32.20-P-0200-06GH

Spring

compressor

Fig. 2

Tensioning plates Fig. 3

4

Install in the reverse order

Testing

5

Check and correct
headlamp adjustment

Check and correct
headlamp adjustment

AP82.10-P-8260GH

Number

Designation

Model Series 163

BA32.25-P-1003-03D

Self-locking nut, shock
absorber to rear spring

NM 30

2001 Mercedes-Benz ML320

1998-2005 SUSPENSION Suspension - 163 Chassis

me

Fig. 11: Identifying Torsion Bar On Front Axle

Modification notes

10.7.00

Figure modified from 23 Nm to
15 Nm

Value in BA32.20-P-1004-02G changed for
model 163

*BA32.20-P-1004-
02G

Remove/Install

Notes on self-locking nuts and bolts

All models

AH00.00-N-
0001-01A

If a part of the version up to 31.07.98 (A) is
defective, the repair kit, which still only
contains parts for the version as of 01.08.98
(B), must be installed in pairs

1.1

Remove bottom engine compartment
paneling

Model 163.157/ 172/ 174/ 175.

AR61.20-P-
1105GH

1.2 Remove noise encapsulation

Model 163.113 /128.

AR94.30-P-
5400GH

2

Remove bracket (22b) at bottom track
control arm (4)

*BA32.20-P-
1002-02G

3

Remove retaining bracket (21b)

*BA32.20-P-

2001 Mercedes-Benz ML320

1998-2005 SUSPENSION Suspension - 163 Chassis

me