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Home >> BMW >> 2017 >> 340i Standard Trans >> Repair and Diagnosis >> Collision >> Body Panels >> Collision - Body Panel Repair (F30) >> 41 21 Side Frames And Pillars >> 41 21 003 Replacing A-Pillar With Reinforcement On Left

41 21 003 Replacing A-Pillar With Reinforcement On Left

Observe procedure of REPAIR TECHNIQUES, REPAIR STAGE 3 .

Read contents of body, general; refer to CONTENTS OF BODY, GENERAL .

For stripping and rebuilding operations, see the surrounding texts on KSD CD (FRU number 41 21 003).

Spot-weld bonding is used on this vehicle. Observe specific procedure; refer to SPOT-WELD BONDING STEEL COMPONENTS .

Use only an approved spot-welding apparatus for repairs! Refer to WORKSHOP EQUIPMENT (BMW AND MINI VEHICLES) .

Place vehicle on straightening bench.

Following new body parts are required (refer to appropriate parts information ):

  1. A-pillar, outer
  2. Middle side frame
  3. Shaped part, A-pillar, top (not shown)
  4. Shaped part, A-pillar, top inside (not shown)
G10096637Courtesy of BMW OF NORTH AMERICA, INC.

The following consumables are required (refer to OVERVIEW OF CONSUMABLES (ELECTRONIC PARTS CATALOG) .

Material Quantity
Blind rivet N1 1
Blind rivet N2 1

Removal 

G10096614Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cuts in accordance with specified dimensions and cut.

Attention!

Cut outer panel only for following severance cuts.

Dimension a = approx. 200 mm from corner of roof outer skin.

Dimension b = approx. 90 mm from center of a 20 mm dia. bore hole.

Open welded connections in areas (1).

Open spot-welded adhesive joints in area (2); refer to OPENING BONDED CONNECTIONS .

Release and remove A-pillar from cavity sealing (3).

G10096639Courtesy of BMW OF NORTH AMERICA, INC.

Undo welded connections in these areas (1) and remove the A-pillar reinforcement.

New part preparation 

Mark severance cuts on new parts according to severance cuts on vehicle and sever.

Prepare reinforcement plates at severance cuts; refer to WELDING IN REINFORCEMENT PLATE (SHEET STEEL) .

Adjust A-pillar to fit with alignment bracket or universal mount and secure.

NOTE: When adjusting, due to the absence of an outer skin, it is necessary to place a panel of equal thickness in the area of the door hinges.

In areas (1), set 2 bore holes Ø6.8 mm for blind rivets.

Remove new parts and deburr bore holes.

G10096640Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

Apply sealant to CAVITY SEALING .

Install new A-pillar and reinforcement plates with alignment bracket or universal mount and fix.

For installation, due to the absence of an outer skin, it is necessary to place a panel of equal thickness in the area of the door hinges.

Rivet new part in areas (1) and (2).

Area (1): Blind rivet N1.

Area (2): Blind rivet N2.

Weld new part in further joint areas.

G10096641Courtesy of BMW OF NORTH AMERICA, INC.

Install and weld outer A-pillar and reinforcement plates.

NOTE:
  • Vehicles with slide/tilt sunroof:  Make sure water drain hose (1) is correctly installed! (watertightness).
  • In vehicle with a normal roof  , a grommet is installed instead of the water drain hose.

Please ensure correct installation of the grommet!

G10096615Courtesy of BMW OF NORTH AMERICA, INC.