Replace crossmember

AR62.30-P-1352SO

Replace crossmember

20.02.2019

Model

450.3/4

Center floor upper crossmember

Shown on model 450.3

1

Center floor upper crossmember

Shown on model 450.3

1

Center floor upper crossmember

Shown on model 450.3

1

Center floor upper crossmember

A

266 mm

B

145 mm

C

18 mm

D

20 mm



Remove

 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

Topical note

Notes on thread repairs

AH00.00-P-0008-01SM

Topical note

General information on body repair

AH60.00-N-0001-01A

Topical note

Notes on performing repair, body work and welding on vehicles with airbags and RTE units

AH91.00-P-0002-01M

Notes on replacing body parts

AH60.00-P-0027-01FF

1

Drill out spot welds at welding flange with spot weld removing tool (2)

 See Fig. A.

2

Remove center floor upper crossmember (1)



Install

3

Smooth welding edges and remove paint in welding area of separating point

4

Apply weldable primer to bare weld points in repair area

Zinc dust paint suitable for spot welding, replaced by A 000 986 28 00 1K zinc dust paint

*BR00.45-Z-1001-07A

5

Remove protective paint at welding areas of new center floor upper crossmember (1) and apply weldable primer to bare welding areas

Zinc dust paint suitable for spot welding, replaced by A 000 986 28 00 1K zinc dust paint

*BR00.45-Z-1001-07A

6

Punch welding flanges with hole punching pliers at specified spot weld pitches

Not in case of resistance spot welding.

 See picture: B.

7

Fit center floor upper crossmember (1)

 When fitting observe correct distances.
Place body if necessary on straightening bench.
The straightening bench and straightening set of the companies Celette, Car Bench, Car-O-Liner or Blackhawk can be optionally used.

8

Weld in center floor upper crossmember (1) in inert gas and/or resistance spot welding method

 See fig. C.

9

Slightly smooth spot welds and unevennesses

10

Mark weld stud position and grind marked location down to bare metal

 See fig. D.

11

Weld on weld stud

12

Clean repair areas with wire brush and then apply primer

13

Supplement standard sealants with body sealant

White sealing compound, 310 ml, DBL 6069.20

*BR00.45-Z-1003-01A

14

Paint repair area adjacent surfaces

Topical note

Notes on paintwork repairs

AH98.00-P-9408-02SM

15

Add cavity preserving agent

Repair materials

Number

Designation

Order number

BR00.45-Z-1001-07A

Zinc dust paint suitable for spot welding, replaced by A 000 986 28 00 1K zinc dust paint

A 000 986 34 42

BR00.45-Z-1003-01A

White sealing compound, 310 ml, DBL 6069.20

A 001 989 63 20