41 14 021 Replacing Front Left Wheel Arch

WARNING: This page is about a different car, the 2011 BMW M3, 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.

Procedure OBSERVE repair step 3!

Read general service information under BODY, GENERAL . STRIP DOWN VEHICLE .

Place vehicle on straightening bench.

Following new body parts are required:

Following CONSUMABLES are required:

(1) Wheel arch, front
(2) Support carrier, wheel arch, outer

Fig 1: Identifying Front Wheel Arch And Outer Wheel Arch Support Carrier

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CONSUMABLES REFERENCE CHART

Material	Quantity
Adhesive K1	1
Blind rivets N1	56
Punch rivets N5	39
EMC screws	4
CleanerR1	1
Cavity sealing wax remover	1
Sealant D1

Removing wheel arch

Mark severance cut (1) in front of holder (2) and cut (holder (2) remains on vehicle).

Open welded connections in area (3).

Installation:

Mark severance cut (1) in on new part and cut. Take off holder (2).

Apply sealant to cavity acoustic baffle See 4100... INSTALLING A CAVITY ACOUSTIC BAFFLE (EXPANDED) or 4100... INSTALLING A CAVITY ACOUSTIC BAFFLE (NOT EXPANDED) (4).

Fig 2: Identifying Severance Cut With Cavity Acoustic Baffle And Welding Areas

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Open welded connections in areas (1).

Fig 3: Identifying Welding Areas

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Open welded connections in area (1).

Fig 4: Identifying Welding Areas

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Open welded connections in area (1).

Installation:

If equipment compartment partition wall (2) is damaged, cut along line (3).

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

Bond both parts overlapping and rivet.

Depending on accessibility, use punch rivets N4 and blind rivets N3.

Fig 5: Identifying Welding Areas On Compartment Partition Wall

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Open welded connections in area (1).

Fig 6: Identifying Welding Areas

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Preparation of new part

Make severance cut on new carrier support part in accordance with severance cut on vehicle.

Open welded connections in area (1).

Fig 7: Identifying Welding Areas

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In areas (1) cut open engine support from opposite side and open welded connections.

In area (2) open welded connections from inside.

Fig 8: Identifying Engine Support Welding Areas

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Adjust new parts to fit with alignment bracket or universal mount and secure.

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

Area (1): 3 holes

Area (2): 8 holes

Area (3): 6 holes

Installation:

After adhesive has hardened, install 2 EMC SCREWS in areas (1) and (2).

Fig 9: Identifying EMC Screws Area

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

Area (1): 3 holes
Area (2): 2 holes

Fig 10: Identifying Rivet Areas

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

Area (1): 1 hole
Area (2): 7 holes

Installation:

In area (3) 2 N5 punch rivets are used later.

Fig 11: Identifying Rivet Areas

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In area (1) set seven 6.8 mm dia. holes for blind rivets N1.

Installation:

In area (2) 1 N5 punch rivet is used later.

Fig 12: Identifying Rivet Areas

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In areas (1) to (4), set 6.8 mm dia. holes for blind rivets N1:

Area (1): 5 holes
Area (2): 2 holes

Area (3): 1 hole

Area (4): 9 holes

Installation:

After adhesive has hardened install 2 EMC screws in areas (1) and (4).

Fig 13: Identifying Rivet Areas

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Set two 6.8 mm dia. holes for blind rivets N1 in area (1).

Remove all new parts and deburr holes.

Fig 14: Identifying Hole Area For Blind Rivets

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Installing wheel arch

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

Clean bonding surfaces with adhesive cleaning agent R1.

Apply adhesive K1 to bonding surfaces.

Install new parts and rivet with blind rivets.

IMPORTANT: Three-plate connection (1)!
In area (1) rivet new part on both sides offset with 4 punch rivets N5.

Use 14 punch rivets N5 in area (2).

Use 18 punch rivets N5 in area (3).

Fig 15: Identifying Rivet Areas On Wheel Arch

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Installation:

Vehicles with spring strut dome plate insert:

Different plate inserts are fitted, depending on the model.

Version (A) riveted or glued
Version (B) screwed

IMPORTANT: Use only identical plate inserts on both sides of the vehicle.

Riveted version:

If damaged, the plate inserts must always be replaced with glued versions on both sides of the vehicle.

Fig 16: Identifying Spring Strut Dome Plate Insert (Glued And Screwed)

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Glued version:

Adhesive/contact surfaces of plate insert must be free of sealant, final paint coat and underbody protection.

Do not grind off primer.

Use adhesive gun 41 3 102 in conjunction with adhesive K3.

Apply K3 adhesive in areas (1). Do not apply any adhesive in area (2).

Fig 17: Identifying K3 Adhesive Applying Areas

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Secure plate insert with 3 screws and nuts for 2 hours at min. 20°C.

IMPORTANT: Operational strength is only achieved after 12 hours!