Partially remove/install A-pillar inner section

AR63.20-D-1101A

Partially remove/install A-pillar inner section

08.04.2019

Model

901.0/3/4, 902.0/3/4, 903.0/3/4, 904.0/3/4

Repair of left A-pillar inner section is shown

1

Inner section of A-pillar

2

Part of inner section of A-pillar



Remove

 Warning

Risk of injury caused by performing testing or repair work on airbag or emergency tensioning retractor units.

Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.

AS91.00-Z-0001-01D

Topical note

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

AH91.00-P-0002-01M

Topical note

General information on body repair

AH60.00-N-0001-01A

1

Remove front bumper

AR88.20-D-2000B

 The repair description must be correspondingly performed for the right side of the vehicle

2

Remove front-end center section

AR88.30-D-2302A

3

Remove heater unit

Only for vehicles with heating code H12

AR83.70-D-5302F

4

Remove battery

5

Remove battery tray

6

Remove engine control unit with bracket

7

Remove front-end paneling

AR62.10-D-5750A

8

Remove wheel arch flaring

AR61.10-D-0006A

9

Remove other detachable parts in repair area

10

Cover all detachable body components that remain in the area to be repaired

11

Separate part of inner section of A-pillar (2)

AR63.20-D-1101-01A

AR64.20-D-0002A

 Cut spot welds

 Spot weld milling cutter

*201589005100



Install

12

Align, grind off connecting plates and coat with zinc dust paint

 Zinc dust paint suitable for spot welding

13

Prepare part of inner section of A-pillar (2) for installation

AR63.20-D-1101-02A

14

Fit and position part of inner section of A-pillar (2)

 Fit A-pillar inner section element according to other side of vehicle. Measure distances by means of cross measurement (vehicle center = drill hole for washing nozzle hose duct).

 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

15

Weld in part of inner section of A-pillar (2)

AR63.20-D-1101-03A

Topical note

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

AH00.00-N-0005-01A

General notes on welding

AH60.00-N-0005-01A

16

Install wheel arch flaring

AR61.10-D-0006A

17

Grind off any residue welding material

18

Vacuum out hollow cavities


Metal shavings and/or metallic grinding dust in cavities
can lead to corrosion damage.

19

Clean areas repaired and priming with MB primer filler

20

Supplement standard seals with MB body sealant

AR97.10-D-4000A

 Seam seals after repairs

21

Supplement standard underfloor protection with MB permanent underbody sealant

22

Paint repair area adjacent surfaces

23

Add cavity preserving agent

24

Install engine control unit with bracket

25

Install battery tray

26

Install battery

27

Install heater

Only for vehicles with heating code H12

AR83.70-D-5302F

28

Install front-end paneling

AR62.10-D-5750A

29

Install front-end center section

AR88.30-D-2302A

30

Bolt on front bumper

AR88.20-D-2000B

31

Reinstall all detachable parts removed