Mercedes-Benz A220 2020 Technical Service Bulletin # S-32_25-83 Date: 110908

Suspension - Assembly Of Suspension Struts And Shocks

Date: September 8, 2011

Order No.: S-B-32.25/83

Mercedes-Benz A220 2020 Page 90

Group: 32

SUBJECT: MY-All, Models All

Assembly of Suspension Struts and Shock Absorbers

The correct procedure for installing and removing or disassembling/assembling shock absorbers and struts is described below.

1. Damper tube

2. Piston rod

a. Friction marks on sealing piston

b. Without friction marks on sealing piston

Procedure

1. When releasing or tightening the nut on the piston rod (Figure 1) (2) a impact wrench/driver must not be used because the piston rod (Figure 1) (2)

will also turn and by doing so it may cause friction marks (arrow) in the damper tube (Figure 1) (1) and on the sealing piston (Figure 1) (a).

2. When releasing and tightening, the piston rod must be counter held at the upper end using a suitable tool. See WIS document:

Disassembling/assembling suspension struts AR32.25-P-1018*.

3. Turning with the impact wrench/driver creates chips, which are deposited in the sealing piston and damage the piston rod sealing. In this instance,

the damper sealing capability is no longer sustained.

2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # S-32_25-83 Date: 110908

2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # S-32_25-83 Date: 110908

Suspension - Assembly Of Suspension Struts And Shocks

Date: September 8, 2011

Order No.: S-B-32.25/83

Group: 32

SUBJECT: MY-All, Models All

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 103

Assembly of Suspension Struts and Shock Absorbers

The correct procedure for installing and removing or disassembling/assembling shock absorbers and struts is described below.

1. Damper tube

2. Piston rod

a. Friction marks on sealing piston

b. Without friction marks on sealing piston

Procedure

1. When releasing or tightening the nut on the piston rod (Figure 1) (2) a impact wrench/driver must not be used because the piston rod (Figure 1) (2)

will also turn and by doing so it may cause friction marks (arrow) in the damper tube (Figure 1) (1) and on the sealing piston (Figure 1) (a).

2. When releasing and tightening, the piston rod must be counter held at the upper end using a suitable tool. See WIS document:

Disassembling/assembling suspension struts AR32.25-P-1018*.

3. Turning with the impact wrench/driver creates chips, which are deposited in the sealing piston and damage the piston rod sealing. In this instance,

the damper sealing capability is no longer sustained.

Mercedes Benz E 550 4MATIC Sedan Technical Service Bulletin # S-32_25-83 Date: 110908

 Mercedes Benz E 550 4MATIC Sedan Technical Service Bulletin # S-32_25-83 Date: 110908
Suspension - Assembly Of Suspension Struts And Shocks
Date: September 8, 2011
Order No.: S-B-32.25/83
Group: 32
SUBJECT: MY-All, Models All
Assembly of Suspension Struts and Shock Absorbers
The correct procedure for installing and removing or disassembling/assembling shock absorbers and struts is described below.
2010 Mercedes Benz E 550 4MATIC Sedan (212.090) V8-5.5L (273.970)   Page 109
1. Damper tube
2. Piston rod
a. Friction marks on sealing piston
b. Without friction marks on sealing piston
Procedure
1. When releasing or tightening the nut on the piston rod (Figure 1) (2) a impact wrench/driver must not be used because the piston rod (Figure 1) (2)
will also turn and by doing so it may cause friction marks (arrow) in the damper tube (Figure 1) (1) and on the sealing piston (Figure 1) (a).
2. When releasing and tightening, the piston rod must be counter held at the upper end using a suitable tool. See WIS document:
Disassembling/assembling suspension struts AR32.25-P-1018*.
3. Turning with the impact wrench/driver creates chips, which are deposited in the sealing piston and damage the piston rod sealing. In this instance,
the damper sealing capability is no longer sustained.

Suspension - Assembly Of Suspension Struts And Shocks

Mercedes Benz Truck G 55K AMG (463.271) V8-5.5L SC (113.993)Technical Service Bulletin # S-32_25-83
Suspension - Assembly Of Suspension Struts And Shocks
Date: September 8, 2011
Order No.: S-B-32.25/83
Group: 32
SUBJECT: MY-All, Models All
Date: 1109082010 Mercedes Benz Truck G 55K AMG (463.271) V8-5.5L SC (113.993)
 
   
Page 39
Assembly of Suspension Struts and Shock Absorbers
The correct procedure for installing and removing or disassembling/assembling shock absorbers and struts is described below.
1. Damper tube
2. Piston rod
a. Friction marks on sealing piston
b. Without friction marks on sealing piston
Procedure
1. When releasing or tightening the nut on the piston rod (Figure 1) (2) a impact wrench/driver must not be used because the piston rod (Figure 1) (2)
will also turn and by doing so it may cause friction marks (arrow) in the damper tube (Figure 1) (1) and on the sealing piston (Figure 1) (a).
2. When releasing and tightening, the piston rod must be counter held at the upper end using a suitable tool. See WIS document:
Disassembling/assembling suspension struts AR32.25-P-1018*.
3. Turning with the impact wrench/driver creates chips, which are deposited in the sealing piston and damage the piston rod sealing. In this instance,
the damper sealing capability is no longer sustained.