41 21 510 Front Left Door Pillar Replacement (Front Side Panel Removed)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Spot-weld bonding is used on this vehicle. Observe specific procedure .

Remove or cover those vehicle components in the repair area which are susceptible to heat or dust.

Use only approved spot-welding apparatus for repairs!

Place vehicle on straightening bench.

(1) A-pillar, outer
(2) Support carrier, wheel arch, outer
(3) Shaped part, support carrier (not shown)
(4) Shaped part, A-pillar, bottom inner (not shown)

Fig 1: A-Pillar And Support Carrier

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Fig 2: Support Carrier Dimension

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Mark severance cuts in accordance with specified measurements and cut.

IMPORTANT: Cut outer plate only for following severance cuts.

Measurement a = approx. 130 mm from edge of rectangular hole.

Measurement b = approx. 160 mm from centrepoint of 12 mm dia. bore.

Open weld joints in areas (1).

Installation:

Weld in reinforcing panels at all severance cuts.

Apply window glass adhesive to cavity acoustic baffles (2).

Fig 3: Weld Joint Areas And Cavity Acoustic Baffles

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Mark severance cuts in accordance with specified measurements and cut.

IMPORTANT: Cut outer plate only for following severance cuts.

Measurement a = approx. 210 mm from roof edge.

Measurement b = approx. 80 mm below severance cut a.

Measurement c = approx. 215 mm before hole dia. 20 mm.

Open weld joints in areas (1).

Open adhesive bond in area (3).

Installation:

Sheet panel (2) is needed again to seal cowl.

Plug weld in area (3).

IMPORTANT: For following severance cut, do not damage sunroof water drain hose.

Mark severance cut (1) in accordance with measurement and cut.

Measurement a = approx. 250 mm from roof edge.

Fig 4: Cut Mark Area

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Open weld joint in area (1).

IMPORTANT: Do not damage sunroof water drain hose (2).

Fig 5: Weld Joint Areas And Sunroof Water Drain Hose

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Open adhesive bond in area (1).

Open weld joint in area (2).

Fig 6: Weld Joint Areas And Adhesive Bond Area

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Preparation of new part:

Mark new part in accordance with severance cuts above and cut.

Installation:

Adjust new part to fit with straightening attachment or universal mount.

Weld in reinforcing panels at all severance cuts.

Apply window glass adhesive to cavity acoustic baffle (1).

Apply adhesive in area (2).

Fig 7: Cavity Acoustic Baffle And Adhesive Area

Courtesy of BMW OF NORTH AMERICA, INC.