41 34 121 Replacing Complete Tail Panel And Luggage Compartment Floor

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Read contents of BODY, GENERAL .

Use only an approved SPOT-WELDING APPARATUS for repairs!

Place vehicle on straightening bench.

Use portal fixture from set of attachments.

Observe procedure for REPAIR STAGE 3 .

Necessary preliminary tasks:

Remove TAIL PANEL

Following new body parts are required:

(1) Cross-member, luggage compartment floor
(2) Mounting, impact absorber
(3) Mountings RHT, rear (hardtop)
(4) Luggage compartment floor
(5) Side member, rear
(6) Luggage compartment well

Fig 1: Identifying Cross-Member - Luggage Compartment Floor, Mounting - Impact Absorber, Side Member Rear And Luggage Compartment Well
Courtesy of BMW OF NORTH AMERICA, INC.
(7) Mounting, tension strut

Following CONSUMABLES are required:

Material	Quantity
Adhesive K5a	1
Blind rivets N1	21
Cleaning agent R1	1
Sealant D1

Removal of luggage compartment floor

View from vehicle underbody:

Open welded connections in areas (1).

Fig 2: Identifying Weld Joints Area

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying Weld Joint Area With Severance Cut And New Components Weld Area

Courtesy of BMW OF NORTH AMERICA, INC.

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

Mark severance cut (1) in accordance with dimension and cut.

Measurement a = 20 mm from luggage compartment floor, front.

Mark severance cut (2) and cut.

Open welded connections in area (3).

Remove luggage compartment floor, luggage compartment well and side member.

Installation note:

Weld new components in area (4) additionally.

New luggage compartment well part is installed with overlap in area of severance cut (1).

Preparation of new part:

Installation note:

Tension strut mounting is bonded to luggage compartment well and riveted.

All other new parts are welded during installation.

Prepare REINFORCEMENT PLATES at severance cuts on side members.

Mark severance cut on new luggage compartment well part according to severance cut on vehicle + 20 mm material extra and cut.

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

Additionally adjust new parts to fit with tail panel, tailgate and rear lights.

Position both mountings RHT, rear (1) with portal fixture from set of attachments.

Fig 4: Identifying Mountings RHT (Rear)

Courtesy of BMW OF NORTH AMERICA, INC.

View from below.

Adjust tension strut mounting (1) with mounted torsion struts (2) to fit and secure.

Set twenty one 4.2 mm Ø holes for blind rivets in adhesive flange area.

Remove new parts again and deburr holes.

NOTE: 6 holes are sufficient for positioning the component.

Make all further holes for blind rivets if necessary on removed components.

Fig 5: Identifying Tension Strut Mounting And Mounted Torsion Struts

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not grind new parts and body in area of bonding surfaces.

Installing trailing link mounting

Clean all bonding surfaces (1) with cleaning agent R1.

Apply adhesive to bonding surfaces (1).

Rivet tension strut mounting (2) and luggage compartment well (3) with blind rivets N3.

Fig 6: Identifying Luggage Compartment Well, Tension Strut Mounting And Bonding Surfaces

Courtesy of BMW OF NORTH AMERICA, INC.

Installation of luggage compartment floor

Install new parts and reinforcement plates with alignment bracket or universal mount and weld.

For mountings RHT rear, use portal fixture from set of attachments for positioning.