41 14 020 Replacing Front Left Wheel Arch

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Follow procedure for REPAIR STAGE 3 .

Read contents of BODY, GENERAL .

STRIP DOWN vehicle.

Use only approved SPOT-WELDING APPARATUS for repairs.

Place vehicle on straightening bench.

Following new body parts are required (refer to OVERVIEW OF CONSUMABLES ):

(1) Wheel arch, front
(2) Outer wheel arch carrier support
(3) Carrier support end plate
(4) A-pillar bulkhead
(5) Shaped part, wheel arch carrier support (not shown)

Fig 1: Identifying Wheel Arch (Front), Outer Wheel Arch Carrier Support, Carrier Support End Plate And A-Pillar Bulkhead
Courtesy of BMW OF NORTH AMERICA, INC.

Following consumables are required:

Material	Quantity
Adhesive K1	1
Blind rivets N1	38
Blind rivets N3	31
Blind rivets N6	5
Punch rivets N5	58
EMC screws	4
Sealant D1
R1 cleaning agent	1

Removing the wheel arch

Mark severance cut (1) as pictured and cut.

OPEN spot-welded adhesive joints in area (2).

Open welded connections in area (3).

Release metal section from cavity sealing (4) and remove.

NOTE: Separating cut (1) is only required for removal.

Fig 2: Identifying Metal Section From Cavity Sealing And Spot-Welded Adhesive Joints Area

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Mark severance cut (1) as pictured and cut.

Open welded connections in areas (2).

Remove carrier support end plate metal section (3).

Fig 3: Identifying Carrier Support End Plate Metal Section

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Mark severance cut (1) directly next to bulkhead component edge and cut.

Fig 4: Identifying Engine Support Severance Cutting Mark

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Open welded connections in area (1).

Fig 5: Identifying Wheel Arch Welded Connections Areas

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Open welded connections in areas (1).

Fig 6: Identifying Wheel Arch Welded Connections Areas

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Open welded connections in area (1).

Fig 7: Identifying Engine Support Welded Connections Areas

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Open welded connections in areas (1).

Remove the wheel arch.

Fig 8: Identifying Wheel Arch Welded Connections Areas

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New part preparation

Release the applicable welded connections and separate the engine support from the wheel arch.

NOTE: Welded connections must be detached from side of engine support!

Mark new part in accordance with severance cut on vehicle (1) + 20 mm extra material and cut (2).

Open welded connections in area (3) and remove wheel arch part section.

NOTE: New part is installed and welded overlapping in area of severance cut.

Fig 9: Identifying Wheel Arch Part Section Welded Connections Area

Courtesy of BMW OF NORTH AMERICA, INC.

Mark new part in accordance with severance cut on vehicle (1) + 20 mm extra material and cut (2).

NOTE: New part is joined in area of overlap using adhesive riveting technology.

Fig 10: Identifying Wheel Arch Part Section Severance Cutting Area

Courtesy of BMW OF NORTH AMERICA, INC.

Adjust new part wheel arch in combination with wheel arch carrier support to fit with alignment bracket or universal mount and secure.

In areas (1) to (3), set dia. 6.8 mm bore holes for blind rivets N1.

Area	Number
1	6
2	10
3	4

Fig 11: Identifying Bore Holes For Blind Rivets Area N1

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In areas (1), create 4 dia. 6.8 mm bore holes for blind rivets N1.

In area (2) set 5 dia. 4.2 mm bore holes for blind rivets N3.

Fig 12: Identifying Bore Holes For Blind Rivets Area N3

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In areas (1) to (3), set dia. 6.8 mm bore holes for blind rivets N1.

Area	Number
1	2
2	3
3	2

Fig 13: Identifying Bore Holes For Blind Rivets (N1) Area

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In areas (1) and (2), set dia. 6.8 mm bore holes for blind rivets N1.

Area	Number
1	1
2	1

Fig 14: Identifying Bore Hole Areas For Blind Rivets N1

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In area (1) set 5 dia. 4.2 mm bore holes for blind rivets N3.

In area (2) set 5 dia. 6.8 mm bore holes for blind rivets N1.

Remove carrier support new part.

Fig 15: Identifying Carrier Support Bore Holes For Blind Rivets Area N1

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Adjust A-pillar bulkhead new part (1) and secure.

Prepare wheel arch in area of overlap (3) for joining by welding.

NOTE: Bulkhead is welded for installation in area (2).

Fig 16: Identifying A-Pillar Bulkhead Wheel Arch Area

Courtesy of BMW OF NORTH AMERICA, INC.

Adjust carrier support end plate new part (1) and secure.

In areas (1) to (3), set dia. 4.2 mm bore holes for blind rivets N3.

Area	Number
1	5
2	2
3	4

Fig 17: Identifying Carrier Support End Plate Part With Bore Holes Area

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Adjust wheel arch carrier support new part to fit with alignment bracket or universal mount and secure.

In areas (1) and (3), set dia. 4.2 mm bore holes for blind rivets N3 .

In area (2) set bore holes dia. 4.2 mm for blind rivets N6 .

Area	Blind rivet N3	Blind rivet N6
1	2
2		5
3	8

Fig 18: Identifying Bore Holes Blind Rivet Area

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Remove new parts and deburr bore holes.

IMPORTANT: Structure bonding!
OBSERVE preparation of bonding surfaces.

Installation of wheel arch with bulkhead

Clean bonding surfaces with cleaning agent R1.

Apply adhesive to bonding surfaces.

Adjust wheel arch to fit with alignment bracket or universal mount and secure.

NOTE: Use wheel arch carrier support to adjust wheel arch.

But do not yet rivet wheel arch carrier support!

Rivet wheel arch with blind rivets.

Remove wheel arch carrier support.

Adjust bulkhead new part A-pillar (1) and weld.

Weld wheel arch in area (2).

Set additional 15-mm long metal active gas weld seams at a distance of 20 mm to component edge (3).

Fig 19: Identifying Wheel Arch Weld Area

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Installation of end plate carrier support

Clean bonding surfaces with cleaning agent R1.

Apply adhesive to bonding surfaces.

Adjust end plate carrier support (1) and rivet with blind rivets.

Use N5 punch rivets in areas (2) and (3).

Area	Number
2	9
3	6

Fig 20: Identifying End Plate Carrier Support, Rivet With Blind Rivets Area

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Installation of wheel arch carrier support

Clean bonding surfaces with cleaning agent R1.

Apply adhesive to bonding surfaces.

Apply sealant to new CAVITY SEALING of wheel arch carrier support.

Adjust wheel arch carrier support new part to fit with alignment bracket or universal mount and rivet with blind rivets.

Use N5 punch rivets in areas (1) to (3).

Area	Number
1	12
2	24
3	7

Fig 21: Identifying Wheel Arch Carrier Support Punch Rivets Areas

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After adhesive has hardened, install one EMC screw in each case in areas (1).

Fig 22: Identifying EMC Screw Adhesive Applying Area

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In area (1) install one EMC screw.

Fig 23: Identifying EMC Screw Area

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