BMW 7 Owners & Service Manuals

BMW 7 Series: Replacing Front Left Wheel Arch

Note the special vehicle identification number procedure when replacing the front right wheel arch (order the new body part with the vehicle identification number, if necessary)! These instructions are only applicable the first time the wheel arch is replaced! Repeated replacement is only permitted after consultation with and release 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).

Body
Fig. 223: Identifying Punch And Blind Rivets

Observe procedure of REPAIR STAGE 3.

Read contents of BODY, GENERAL.

Strip down vehicle.

Steel-aluminium composite construction is used on the vehicle. Observe specific procedure.

Spot-weld bonding is used on this vehicle. Observe specific PROCEDURE.

Use only approved SPOT-WELDING EQUIPMENT for repairs! Place vehicle on straightening bench.

Following new body parts are required:

  1. Wheel arch, front
  2. Connection, side frame, rear

Body
Fig. 224: Identifying Connection, Side Frame, Rear And Wheel Arch, Front

Open spot-weld bonded joints in area (1).

OPEN WELDED CONNECTIONS IN AREAS (2).

ROUGHLY CUT SIDE FRAME CONNECTION (3) ALONG LINES (4).

REMOVE SIDE FRAME CONNECTION (3).

REPLACE CAVITY SEALING.

Installation note: MAG weld new part in areas (4).

To do so, apply 10 mm long fillet welds at spacing of 15 mm.

Body
Fig. 225: Identifying Spot-Welded Adhesive Joints Area And Side Frame Connection

Drill out rivet connections in area (1).

Open BONDED CONNECTION in area (1).

Installation note: Use 6 N2 RIVETS in area (1).

Body
Fig. 226: Identifying Rivets Area

View from above: Open welded connections in areas (1) to (3).

NOTE: Cut out component roughly and open welded connections from inside.

Body
Fig. 227: Identifying Welded Connections Areas

View from below: Open welded connections in area (1).

Drill out rivet connections in area (2).

Open bonded connection in area (2).

Installation note: Use 10 rivets N2 in area (2).

Body
Fig. 228: Identifying Rivet Connections And Welded Connections Area

Open welded connections in area (1).

Body
Fig. 229: Identifying Welded Connections Area

Drill out rivet connections in areas (1) and (2).

Open bonded connections in areas (1) and (2).

Installation note:

Adjust new part to fit with alignment bracket or universal mount.

CARRY OVER HOLE PATTERN from engine support to new part in areas (1).

Carry over new rivet holes from engine support to wheel arch in area (2).

Use 4 N2 rivets in area (2).

Glue new part with ADHESIVE K1.

Body
Fig. 230: Identifying Rivet Holes Drill Areas

IMPORTANT: To avoid contact corrosion, do not grind the new wheel arch part in the area of the BONDING SURFACES.

Grind bonding surfaces on engine support blank.

Clean bonding surfaces with CLEANING AGENT R1 !

Body
Fig. 231: Identifying Rivet Positions

Installation note: Additional rivet positions are required for strength reasons.

  1. Additional rivet positions (black, number 6)
  2. Previous rivet positions (grey, number 15)

Drill additional rivet holes as shown in picture.

Use 21 N 2 rivets.

Glue new part with adhesive K1.

Installation note: MAG-weld new part in area (1).

To do so, apply 2 fillet welds at distance of approx. 20 mm. Length of fillet welds approx. 10 mm.

Body
Fig. 232: Identifying New Component MAG-Welding Area

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