1997 MERCEDES-BENZ ML320 air suspension

Fig. 14: Identifying Front Shock Absorber Components (2 Of 2)
Remove/Install
Notes on self-locking nuts
and boltsAll modelsAH00.00-N-0001-01A
Lethal injuries are
possible if vehicle slips off
of lifting platformAlign vehicle between the
columns of the hydraulic
hoist and position the four
support plates below the
hoist support points
specified by the vehicle
manufacturer.AS00.00-Z-0010-01A
1Raise vehicle.
2Remove fender liner. AR88.10-P-1300GH
3Detach upper shock
absorber mounting The vehicle must be
standing on its wheels
when removing the upper
shock absorber mounting.
Installation: If a black
version of the upper
rubber mounts(11c) and
lower rubber mounts (11d)
are installed, these should
be identified as upper and
lower. The top rubber
mounts are harder than the
bottom mounts.
Loosen nut (11a).
Counter using an open-end
wrench. Remove plate

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:35 PMPage 14 © 2006 Mitchell Repair Information Company, LLC.

Front axle shock absorber
REMOVE/INSTALL REAR SHOCK ABSORBER - AR32.25-P-0110GH
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175
(11b), upper rubber mount
(11c), lower rubber mount
(11d), plate (11e) and
plate (11f).
Installation: If new
upper rubber mounts (11c)
and lower rubber mounts
(11d) are used, the white
coated (harder must be
installed at the top and the
yellow coated (softer)
must be installed at the
bottom. Observe the
sequence of the separate
parts and if necessary the
markings applied to the
upper rubber mount (11c)
and lower rubber mount
(11d).
*BA32.25-P-1002-01C
4Detach lower shock
absorber mounting from
lower transverse control
arm (4) Installation: Only
tighten bolt (11u) when
the vehicle is on its wheels
in the ready-to-drive
condition.
*BA32.25-P-1001-01C
5Remove shock absorber
(11)
6Shock absorber inspection Install new shock
absorber if necessary.AR32.25-P-0121A
Disposing of shock
absorber OS32.25-P-0121-01GH
7Install in the reverse order
NumberDesignationModel Series
163
BA32.25-P-1001-
01CBolt, shock absorber to lower wishboneNM130
BA32.25-P-1002-
01CSelf-locking nut, shock absorber to longitudinal frame
memberNM30

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:35 PMPage 15 © 2006 Mitchell Repair Information Company, LLC.

Fig. 15: Identifying Rear Shock Absorber Components
Remove/Install
Risk of injury with
trapped or crushed
fingers when working on
springs or spring-loaded
componentsUse 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 boltsAll modelsAH00.00-N-0001-01A
1Remove spring strut from
rear axle AR32.25-P-1016GH
2Remove shock absorber
from spring strut AR32.25-P-0200-07GH
Spring
compressorFig. 2
Tensioning platesFig. 3
*BA32.25-P-1003-03D
3Shock absorber inspectionInstall new shock AR32.25-P-0121A

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:35 PMPage 16 © 2006 Mitchell Repair Information Company, LLC.

Rear axle shock absorber
Fig. 16: Identifying Tensioning Device (203 589 01 31 00)

Fig. 17: Identifying Tensioning Plates (163 589 00 63 00)

CHECKING SHOCK ABSO RBER - AR32.25-P-0121A
MODEL 129
MODEL 140
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175
absorber if necessary.
Disposing of shock
absorber OS32.25-P-0121-01GH
4Install in reverse sequence.
NumberDesignationModel Series 163
BA32.25-P-1003-03DSelf-locking nut, shock
absorber to rear springNM30

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Sus pension - 163 Chassis
me
Saturday, October 02, 2010 3:37:36 PMPage 17 © 2006 Mitchell Repair Information Company, LLC.

MODEL 168
MODEL 170
MODEL 202
MODEL 203
MODEL 208
MODEL 209.3/ 4
MODEL 210 except CODE (489) Airmatic (semi-active air suspension)
MODEL 211.0 /2 /6 except CODE (489) Airmatic (semi-active air suspension)
MODEL 414
MODEL 230 except CODE (487) Active Body Control (ABC)
MODEL 164, 251 except CODE (489) Airmatic (air suspension with level adjustment and adaptive
damping system ADS)
Shown on shock absorber in model 202
Fig. 18: Identifying Extension Dimension
- Shown On Shock Absorber In Model 202
Checking
1.1Check piston rod for
surface damage, bending
and for moving in the
guide bush without
jamming
Only if the old shock
absorber is to be installed
again.
Dispose of shock
absorber if necessary.

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:36 PMPage 18 © 2006 Mitchell Repair Information Company, LLC.

By workshop: ?
Disposing of shock
absorberModel 129, 140, 170, 202,
208, 210OS32.25-P-0121-01A
Models 163, 164, 251OS32.25-P-0121-01GH
Model 168, 203, 209,
414.700OS32.25-P-0121-01GC
Model 211OS32.25-P-0121-01TX
Model 230
Disposal by scrap
dealer: ?
Notes on scrapping gas-
filled hydraulic
componentsOS00.00-P-1000-01A
2.1Check damper for
external oil leaks Only if the old shock
absorber is to be installed
again
A thin film of oil on the
shock absorber is
permissible.
Dispose of shock
absorber if necessary.
By workshop: ?
Disposing of shock
absorberModel 129, 140, 170, 202,
208, 210OS32.25-P-0121-01A
Models 163, 164, 251OS32.25-P-0121-01GH
Model 168, 203, 209,
414.700OS32.25-P-0121-01GC
Model 211OS32.25-P-0121-01TX
Model 230
Disposal by scrap
dealer: ?
Notes on scrapping gas-
filled hydraulic
componentsOS00.00-P-1000-01A
3.1Check shock absorber for
internal leakage Only if the old shock
absorber is to be installed
again.
This test is not possible
on models 140, 163, 164,
168, 203, 209, 251,
414.700.
The volume of oil in
the shock absorber is
determined by means of

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:36 PMPage 19 © 2006 Mitchell Repair Information Company, LLC.

Test values for shock absorber
the projection length (a) of
the piston rod.
Push in piston rod as
far as it will go. Then hold
vertically so that piston
rod points down, and
measure projection length
(a) of piston rod.
Shock absorber in new
condition:
Shock absorber in used
condition:
Model 129, 170, 202, 208,
210, 211, 230*BE32.25-P-1002-02A
Model 129, 170, 202, 208,
210, 211, 230
If shock absorber exceeds
specified value, dispose of
it:
By workshop: ?*BE32.25-P-1001-02A
Disposing of shock
absorberModel 129, 170, 202, 208,
210OS32.25-P-0121-01A
Model 211OS32.25-P-0121-01TX
Model 230
Disposal by scrap
dealer: ?
Notes on scrapping gas-
filled hydraulic
componentsOS00.00-P-1000-01A
4.1Check rubber mount in
housing eye, replace if
necessary Only on shock
absorbers with rubber
mount in housing eye and
only if the shock absorber
is not replaced.
The rubber mounts
must be seated securely in
the body eye and must not
be cracked or damaged.
If fitted, damaged rubber
mounts can cause
knocking noises.
NumberDesignationModel 129Model 170Model 202
BE32.25-P-1001- Oil reserve check mm0+20+20+2

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:36 PMPage 20 © 2006 Mitchell Repair Information Company, LLC.

Test values for shock absorber
Test values for shock absorber
REMOVE/INSTALL SHOCK ABSORBER ON SPRING STRUT - AR32.25-P-0200-07GH
Use only approved tensioning devices; additionally shield off hazardous area if necessary.
Check special tools for damage and correct operation, (visual inspection). Wear protective gloves.
Rear axle shock absorber
Fig. 19: Identifying Tensioning Device (203 589 01 31 00)
02A(shock absorber
when new)
BE32.25-P-1002-
02AOil reserve check
(shock absorber
when used)mm< or =20< or =20< or =20
NumberDesignationModel 208Model 210Model 211
BE32.25-P-1001-
02AOil reserve check
(shock absorber
when new)mm0+20+20+2
BE32.25-P-1002-
02AOil reserve check
(shock absorber
when used)mm< or =20< or =20< or =20
NumberDesignationModel 230
BE32.25-P-1001-02AOil reserve check (shock
absorber when new)mm0+2
BE32.25-P-1002-02AOil reserve check (shock
absorber when used)mm< or =20
NumberDesignationModel Series 163
BA32.25-P-1003-03DSelf-locking nut, shock
absorber to rear springNM30

2001 Mercedes-Benz ML320
1998-2005 SUSPENSION Suspension - 163 Chassis
me
Saturday, October 02, 2010 3:37:36 PMPage 21 © 2006 Mitchell Repair Information Company, LLC.