Page 81 of 255
LOWER STRUCTURE
Tunnel
41K
PRB4131
INTRODUCTION
The replacement of this part is a complementary
operation to the replacement of :
1 - For a frontal impact :
- the bulkhead
2 - For a side impact :
- the side floor
3 - For a rear impact :
- the rear floor unit
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
The repair bench must be used.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part assembled with:
- impact sensor unit mounting,
- front reinforcement of tunnel,
- seat anchoring reinforcement ,
- cable sleeve stop mounting,
- centre reinforcement of tunnel.
JOINTS WITH:
Rear floor
Side floor
Bulkhead
PARTS CONCERNED (thickness in mm):
1Rear floor 1
2Side floor 0.8
3Tunnel 1.2
4Bulkhead 0.7
41-39
Page 83 of 255
LOWER STRUCTURE
Rear floor, front section
41L
PRB4132
INTRODUCTION
For a side impact, the replacement of this part is a
complementary operation to the replacement of :
- the sill panel closure panel,
- the rear floor unit,
- the rear floor front cross member.
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
The repair bench must be used.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part assembled with :
- floor reinforcement,
- nuts .
JOINTS WITH:
Rear floor, rear section
Tunnel
Side floor
Sill panel closure panel
PARTS CONCERNED (thickness in mm):
1Rear floor, front section 0.8
2Rear floor, rear section 1
3Tunnel 1.2
4Side floor 0.8
5Sill panel closure panel 1.2
6Sill panel closure panel extension,
rear section 1.5
41-41
Page 86 of 255

LOWER STRUCTURE
Rear floor, rear section (part section)
41M
PRB4133
INTRODUCTION
The replacement of this part is a complementary
operation to the replacement of:
1 - For a side impact :
- the sill panel reinforcement ,
- the rear inner wheel arch,
- the rear wing panel lining.
Replace part section along cut A (see diagram
and method below).
2 - For a rear impact
- the rear end panel,
- the rear side member, part section or
complete.
Replace part section along cut B (see diagram
and method below).
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
The repair bench must be used.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part assembled with towing ring reinforcement.
JOINTS WITH:
Side floor
Upper shock absorber gusset
Sill panel closure panel
Rear axle assembly mounting unit
Shock absorber mounting upper reinforcement
Sill panel closure panel, rear section
Rear floor front cross member, front section
Rear side member
Wheel arch
Spring bumper mounting
Rear floor stiffener
Centre cross member
PARTS CONCERNED (thickness in mm):
1Rear floor, rear section 1
2Side floor 0.8
3Upper shock absorber gusset 1.5
4Sill panel closure panel 1.2
5Rear axle assembly mounting unit 1.2
6Shock absorber mounting
upper reinforcement 1.2
7Sill panel closure panel, rear section 1.5
8Rear floor front cross member 0.8
9Rear side member 1.5
10Wheel arch 1
11Spring bumper mounting 1.5
12Spring bumper mounting
reinforcement 1.5
13Rear floor stiffener 1
14Centre cross member 1.5
15Rear floor, front section 0.8
or
41-44
Page 93 of 255
LOWER STRUCTURE
Rear floor front cross member, front section
41N
PRB4134
INTRODUCTION
The replacement of this part is a complementary
operation to the replacement of the sill panel clo-
sure panel for a side impact.
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
This part may be replaced partially (see diagram
and method below).
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part only.
JOINTS WITH:
Rear floor
Sill panel closure panel, front section
Sill panel closure panel, rear section
PARTS CONCERNED (thickness in mm):
1Rear floor front cross member,
front section 0.8
2Rear floor 1
3Sill panel closure panel, front section 1.2
4Sill panel closure panel, rear section 1.5
or
41-51
Page 95 of 255
LOWER STRUCTURE
Rear floor stiffener
41O
PRB4135
INTRODUCTION
The replacement of this part is a complementary
operation to the replacement of the rear floor for
a rear impact.
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part only.
JOINTS WITH:
Rear floor
Rear side member
PARTS CONCERNED (thickness in mm):
1Rear floor stiffener 1
2Rear floor 0.8
3Rear side member 1.5
41-53
Page 97 of 255

LOWER STRUCTURE
Rear end cross member
41P
PRB4136
INTRODUCTION
The replacement of this part is a complementary
operation to the replacement of the rear end pa-
nel for a rear impact.
The side member extensions must be replaced
(11) and (12) , and must be ordered separately.
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
10 - Part assembled with rear shock absorber
reinforcement
11 and 12 - Side member extension
JOINTS WITH:
Rear shock absorber reinforcement
Towing ring (left hand side)
Rear side member extension
Side panel rain channel
Side panel lining
Rear floor
Side member
PARTS CONCERNED (thickness in mm):
1Rear end cross member 1.2
2Rear shock absorber reinforcement 1
3Towing ring (left hand side) 1.5
4Rear side member extension 1.5
5Side panel rain channel 1.5
6Side panel lining 0.7
7Rear floor 0.8
8Side member 1.5
41-55
Page 100 of 255
LOWER STRUCTURE
Rear shock absorber reinforcement
41Q
PRB4137
INTRODUCTION
For a rear impact, the replacement of this part is a
complementary operation to the replacement of
the rear end panel.
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part only.
JOINTS WITH:
Rear shock absorber reinforcement
Rear end cross member
PARTS CONCERNED (thickness in mm):
1Rear shock absorber reinforcement 1
2Rear end cross member 1.2
3Towing ring (left hand side) 1.5
4Rear side member extension 1.5
41-58
Page 102 of 255
LOWER STRUCTURE
Rear side member extension
41R
PRB4138
INTRODUCTION
The replacement of this part is a complementary
operation to the replacement of the rear end
cross member .
In the operation described below, there are only
descriptions of the joints specific to the part
concerned.
Information concerning the other parts will be
dealt with in the respective sections.
Use of the repair bench is advised, to ensure that
the rear cross member is correctly geometrically
positioned.
COMPOSITION OF THE PART FROM THE PARTS
DEPARTMENT
Part assembled with towing ring (left hand side).
JOINTS WITH:
Rear side member
PARTS CONCERNED (thickness in mm):
1Rear side member extension 1.5
2Rear side member 1.5
3Towing ring (left hand side) 1.5
41-60