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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2113 (Collision - Body Panel Repair (E71)) >> Wheel Wells >> 41 14 021 Replacing Front Left Wheel Arch

41 14 021 Replacing Front Left Wheel Arch

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This instruction is only applicable the first time the wheel arch is replaced! Repeated replacement is only permitted after consultation with and approval by BMW. Should you have any questions, please contact the country-specific Hotline.

If the wheel arch has not yet been replaced, this can be recognized from the punch rivets (1) fitted at the factory.

If replacing the wheel arch, replace the punch rivets with blind rivets (2).

Fig 1: Identifying Punch Rivets And Blind Rivets
G06212148Courtesy of BMW OF NORTH AMERICA, INC.

Read contents of BODY, GENERAL .

The steel-aluminium mixed construction is used on the vehicle.

Observe specific procedure  , see 41 00... Bonding aluminum on steel  and 41 00... Riveting aluminum parts .

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, see WORKSHOP EQUIPMENT .

Place vehicle on straightening bench.

Fig 2: Identifying Wheel Arch And Reinforcement
G04791201Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in area (1).

Fig 3: Identifying Weld Joints Area
G04791186Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in areas (1).

Fig 4: Identifying Weld Joints Area
G04791187Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in area (1).

Fig 5: Identifying Weld Joints Area
G04791178Courtesy of BMW OF NORTH AMERICA, INC.

Mark severance cut in accordance with measurement a and cut support carrier.

Measurement a=50 mm before 20 mm dia. bore

Open weld joints in area (1).

Installation: 

Weld in reinforcement plate  at severance cut, see 41 00... Welding in reinforcement plate (steel plate) .

Fig 6: Identifying Cut Mark Area And Weld Joints Area
G04791179Courtesy of BMW OF NORTH AMERICA, INC.

Open weld joints in area (1).

Fig 7: Identifying Weld Joints Area
G04791180Courtesy of BMW OF NORTH AMERICA, INC.

Drill out riveted joints in areas (1) to (3).

Open adhesive joints  in areas (1) to (4), see 41 00... Opening bonded connections .

Installation: 

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

In areas (2) and (3) carry over new rivet holes from engine carrier to wheel arch and drill.

Use 11 N2 rivets  in areas (2) and (3), see 41 00... Overview of consumables (Electronic Parts Catalogue - EPC) .

Fig 8: Identifying Riveted Joints Area And N2 Rivets Areas
G06212227Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: To avoid contact corrosion, do not grind the new wheel arch part in the area of the adhesive surfaces  , see 41 00... Bonding aluminum on steel .
Grind bonding surfaces on engine carrier blank.

Clean bonding surfaces with isopropanol or isohexane.

Fig 9: Identifying Holes
G06212156Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

New rivet positions are required for strength reasons.

Drill new rivet holes (1) as shown in picture.

In so doing, maintain a minimum distance of 10 mm to lower component edge.

Use 14 N2 rivets  , see 41 00... Overview of consumables (Electronic Parts Catalogue - EPC) 

Glue new component with adhesive K1  , see 41 00... Overview of consumables (Electronic Parts Catalogue - EPC) .

Installation: 

For accessibility reasons, move rivet (1) 15 mm forwards (2).

Fig 10: Identifying Rivet Holes And Rivet
G04791208Courtesy of BMW OF NORTH AMERICA, INC.