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41 31 001 Replacing OUTERROOF Skin (Version With Panorama Glass Roof)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Read contents of BODY, GENERAL .

STRIP DOWN VEHICLE 

Observe procedure for REPAIR STAGE 2 .

Following new body parts are required (refer to BMW ELECTRONIC PARTS CATALOGUE ):

Following CONSUMABLES  are required:

Material Quantity
Adhesive K5b 2
Blind rivets N3 2
Punch rivets N5 16
EMC screws 2
Cleaning agent R1 1
Sealant D1  

Removal 

Release 4 screws (1) in roof channel.

Fig 2: Identifying Screws In Roof Channel
G04726919Courtesy of BMW OF NORTH AMERICA, INC.

Interior, area of C-pillar:

Operation is described on the left side. Right side identical.

Release rivet connection (arrow).

Fig 3: Locating Area Of C-Pillar
G09878739Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Identifying Spot-Welded Adhesive Joints Area And Bonding Surfaces
G09878740Courtesy of BMW OF NORTH AMERICA, INC.

Open spot-welded adhesive joints in areas (1).

Detach bonding surfaces (2) from vehicle interior.

Open welded connections in areas (1).

Open brazed connections in areas (2).

Take off roof outer skin.

Fig 5: Identifying Welded And Brazed Connections Areas
G09878741Courtesy of BMW OF NORTH AMERICA, INC.

New part preparation 

Place roof outer skin in position and adjust to fit and secure in conjunction with roof trim strips.

At position (1) drill a Ø 4.2 mm bore hole for blind rivet.

Dimension a = approx. 35 mm in front of corner of roof outer skin.

Operation is described on the left side. Right side identical.

Remove new part again and deburr bore holes.

Fig 6: Identifying Front Corner Of Roof Outer Skin Dimension
G09878742Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not grind/sand new part in area of bonding surfaces.

Installation 

Fig 7: Identifying Sealant D1 And Adhesive Area
G09878743Courtesy of BMW OF NORTH AMERICA, INC.

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

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 is later used for spreading to side frame.

Place roof outer skin with helpers evenly and centrally on vehicle.

Insert 4 star screws (1) hand-tight.

Fig 8: Identifying Star Screws
G04726919Courtesy of BMW OF NORTH AMERICA, INC.

Rivet roof outer skin in C-pillar area with blind rivet.

Fig 9: Locating Roof Outer Skin In C-Pillar Area
G09878739Courtesy of BMW OF NORTH AMERICA, INC.

Use 1 blind rivet N3 in area (1).

Operation is described on the left side. Right side identical.

Fig 10: Identifying Blind Rivet N3 Area
G09878746Courtesy of BMW OF NORTH AMERICA, INC.

In area (1) rivet roof outer skin with 8 N5 punch rivets.

Fig 11: Identifying Rivet Roof Outer Skin Area
G09878747Courtesy of BMW OF NORTH AMERICA, INC.
Fig 12: Identifying Punch Rivets N5 And Edge Areas
G09878748Courtesy of BMW OF NORTH AMERICA, INC.

Use 8 punch rivets N5 in areas (1).

IMPORTANT: No punch rivets may be installed in edge areas (2) of roof outer skin.

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.

Fig 13: Identifying Roof Outer Skin And Adapt Step
G06854992Courtesy 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.
Tighten 4 star screws.
Tightening torque 41 31 1AZ .

Operation is described on the left side. Right side identical.

Fit one EMC SCREW  at position (1) after adhesive has hardened.

Dimension a = approx. 130 mm in front of corner of roof outer skin.

Fig 14: Identifying Front Corner Of Roof Outer Skin Dimension
G09878750Courtesy of BMW OF NORTH AMERICA, INC.

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

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