Replace upper front longitudinal member

AR62.20-P-1286SR

Replace upper front longitudinal member

14.05.2019

Model

453

Shown on model 453.3

1

Upper front longitudinal member

 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

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

General information on body repair

AH60.00-N-0001-01A

General information on MB materials

AH98.00-P-9409-03A



Remove

1

Remove detachable parts in area to be repaired

2

Cover all detachable parts remaining on vehicle with spark protection blankets

3

Separate upper front longitudinal member (1)

AR62.20-P-1286-01SR

 Commercially available tools
-Round wire brush
- Weld-spot milling machine
- Wet/dry vacuum cleaner

4

Prepare upper front longitudinal member (1)

AR62.20-P-1286-02SR

 Commercially available tools
-Round wire brush



Install

 Danger

The high voltage used for electric welding presents a lethal hazard. Risk of explosion from welding in areas close to highly inflammable materials. Risk of injury from weld splatter and UV-light when welding. Risk of poisoning from inhaling welding gases

Use insulating mats. Wear protective clothing, safety glasses and a protective mask. Remove highly inflammable materials from the hazard area. Use air extraction system.

AS00.00-Z-0007-01A

Topical note

Measures for preventing damage to vehicles or components when performing electric welding work

AH00.00-N-0005-01A

General information on riveting

AH60.00-P-0003-01N

5

Install upper front longitudinal member (1) and weld in

AR62.20-P-1286-03SR

 Commercially available tools
-Round wire brush
- Manual temporary fastener, 6.35 mm
- Spot welder
Blind rivet tool

Zinc dust paint suitable for spot welding

*BR00.45-Z-1001-07A

Blind rivet 6.512.5 (clamping range 2 mm to 5 mm, draw-off strength min. 19 kN)

*BR00.45-Z-1012-13A

6

Clean weld joints and sheet metal flange with round wire brush

 Commercially available tools
-Round wire brush

7

Remove spark protection blankets

8

Clean repair area

 Commercially available tools
- Wet/dry vacuum cleaner

 Danger

Risk of explosion caused by paint vapors igniting. Risk of poisoning caused by inhaling paint vapors.

No smoking! No open fire! Use respiratory protection, protective clothing, gloves, safety glasses and protective skin cream. Ensure that the area is well ventilated.

AS98.00-Z-0002-01A

9

Prime repair area using primer filler

Topical note

Notes on paintwork repairs

AH98.00-P-9408-02MCC

 Use only primer filler approved by Daimler AG:
http://aftersales.mercedes-benz.com

10

Seal seam following repairs

AR97.10-P-4000SR

 Supplement standard seals with sealant.

 Danger

Risk of explosion caused by paint vapors igniting. Risk of poisoning caused by inhaling paint vapors.

No smoking! No open fire! Use respiratory protection, protective clothing, gloves, safety glasses and protective skin cream. Ensure that the area is well ventilated.

AS98.00-Z-0002-01A

11

Paint repair areas and adjacent surfaces

Topical note

Notes on paintwork repairs

AH98.00-P-9408-02MCC

 Use only paints approved by Daimler AG:
http://aftersales.mercedes-benz.com

12

Add cavity preserving agent

AR97.20-P-1500SR

13

Install all detachable body components in area to be repaired

Repair materials

Number

Designation

Order number

BR00.45-Z-1001-07A

Zinc dust paint suitable for spot welding

A 000 986 34 42

BR00.45-Z-1012-13A

Blind rivet 6.512.5 (clamping range 2 mm to 5 mm, draw-off strength min. 19 kN)

A 004 990 16 97