41 31 014 Replacing Front And Rear Roof Outer Skin

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Read contents of BODY, GENERAL .

STRIP DOWN VEHICLE

Observe procedure for REPAIR STAGE 2 .

The following new body parts are required:

(1) Roof outer skin, front
(2) Roof outer skin, rear

Fig 1: Identifying New Body Parts Required
Courtesy of BMW OF NORTH AMERICA, INC.

Following CONSUMABLES are required:

Material	Quantity
Adhesive K5b	1
Adhesive K5a	1
Punch rivets N4	8
Punch rivets N5	26
EMC screws	4
Cleaning agent R1	1
Sealant D1

Removing roof outer skin

Open welded connections in areas (1).

Open brazed connections in areas (2).

Detach adhesive areas (sealant) in area (3).

Remove front and rear roof outer skin.

Fig 2: Removing Roof Outer Skin

Courtesy of BMW OF NORTH AMERICA, INC.

New part preparation

Place front and rear roof outer skin on body.

Adjust new parts in combination with windscreen, glass tilt sunroof, roof trim strips and rear window.

Check for parallel gaps between glass tilt sunroof and roof halves.

Adjust new parts according to 41 00... BODY GAP DIMENSIONS .

Remove new parts.

IMPORTANT: Do not grind/sand new part in area of bonding surfaces.

Installing roof outer skin

Clean all bonding surfaces on vehicle and on new part with cleaning agent R1.

Fig 3: Identifying Sealant And Adhesive Application Areas

Courtesy of BMW OF NORTH AMERICA, INC.

Apply sealant D1 in areas (1) analogously to Series.

Apply adhesive in areas (2).

Apply a little more adhesive to nodes of A-pillar.

NOTE: Excess material at the nodes is later used for spreading to side frame.

Position front and rear roof outer skin with helpers evenly and centrally on vehicle.

Adjust new parts with add-on parts in accordance with new part preparation procedure.

In areas (1) to (3) rivet new parts with punch rivets N5 .

In area (4) use 8 punch rivets N4 .

Area	Number
1	8
2	9
3	9
4	8

In areas (5) fix the roof outer skin at the front and rear using gripping pliers until the adhesive hardens (long version).

Fig 4: Installing Roof Outer Skin

Courtesy of BMW OF NORTH AMERICA, INC.

Adapt step (1) between roof outer skin (2) and A-pillar with emerging adhesive.

Remove excess adhesive.

IMPORTANT: Do not use any cleaning agents containing solvents.

Do not leave any traces of sharp edges as this could compromise the tightness of the subsequent bond.

Same procedure for all further steps.

Fig 5: Identifying Step Between Roof Outer Skin And A-Pillar

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Spread excess adhesive in roof trim strip channel. Mounting surfaces of clips for roof trim strips must not be coated with adhesive.

After hardening of the adhesive in the roof trim strip channels install 2 EMC SCREWS per new part.

In so doing, bear in mind subsequent fitting of roof trim strips.

After hardening of the adhesive, seal adhesive areas and EMC screws with sealant D1.

Mounting surfaces of clips for roof trim strips must not be coated with sealant.