2009 RENAULT TWINGO Panelwork Workshop Manual

41B-9
CENTRE LOWER STRUCTURE
Front cross member under front seat: Description
C44
41B
There is only one way of replacing this part:
-complete replacement.
I - COMPOSITION OF THE SPARE PARTII - PART FITTED
III - POSITIONING OF LOCAL ELECTRICAL
EARTHS
120935
120914
No. Description Type Thic-
kness
(mm)
(1) Front cross mem-
ber under front
seatHEL1
(2) Front cross mem-
ber stiffener
under the front
seatHEL1.2
120915
WARNING
If the mating faces of the parts to be welded are not
accessible, make EGW plug welds to replace the
original resistance welds (see MR 400).
125408
WARNING
To avoid damaging the vehicles electric and electro-
nic components, the earths of any wiring harness
near the weld area must be disconnected.
Position the earth of the welding machine as closely
as possible to the weld area (see MR 400).

41B-10
CENTRE LOWER STRUCTURE
Rear cross member under front seat: General description41B
DESIGN OF THE STRUCTURAL COMPONENT
This is a basic part. It serves as a mounting for the rear
part of the front seat and to rigidify the body in the
event of a side impact.Note:
The information contained in the following descri-
bes the general repair procedure for all vehicles
having the same design for this part.
Before reading this general information, check that
there are no special notes associated with this vehi-
cle. These special notes will be specified if applica-
ble in other parts of this subsection dealing with the
par t.
Note:
For a detailed description of a particular connec-
tion, see MR 400.
110499

41B-11
CENTRE LOWER STRUCTURE
Rear cross member under front seat: Description
C44
41B
There is only one way of replacing this part:
-complete replacement.
I - COMPOSITION OF THE SPARE PARTII - PART FITTED
III - POSITIONING OF LOCAL ELECTRICAL
EARTHS
120934
120912
No. Description Type Thic-
kness
(mm)
(1) Rear cross mem-
ber under front
seatHEL1
(2) Rear cross mem-
ber under front
seat mounting
plateHEL2
(3) Rear cross mem-
ber stiffener
under front seatHEL1.2
120913
IMPORTANT
If the mating faces of the parts to be welded are not
accessible, make EGW plug welds to replace the
original resistance welds (see MR 400).
125408
WARNING
To avoid damaging the vehicles electric and electro-
nic components, the earths of any wiring harness
near the weld area must be disconnected.
Position the earth of the welding machine as closely
as possible to the weld area (see MR 400).

41C-1
SIDE LOWER STRUCTURE
Sill panel: General description
41C
I - DESIGN OF THE STRUCTURAL COMPONENT
The special feature of this part is that it is butt welded
by laser on the lower section with two types of panels
and two different thicknesses.
This part is removed by cutting into the complete body
side. This part fulfils the basic function of the sill panel.
It can be replaced partially by following the cuts descri-
bed as follows.Note:
The information contained in the following descri-
bes the general repair procedure for all vehicles
having the same design for this part.
Before reading this general information, check that
there are no special notes associated with this vehi-
cle. These special notes are specified if necessary
in other parts of the sub-section dealing with the
component.
Note:
For a detailed description of a particular connec-
tion, (see MR 400).
113243

41C-2
SIDE LOWER STRUCTURE
Sill panel: General description
41C
II - AREA TO BE CUT FOR COMPLETE
REPLACEMENT
The lines (1) and (2) mark the cutting areas for the
complete replacement of the sill panel.III - AREA TO BE CUT FOR PARTIAL
REPLACEMENT
112727
110582

41C-3
SIDE LOWER STRUCTURE
Sill panel: General description
41C
The lines (1) and (4) mark the areas for the partial re-
placement of the front of the sill panel.
The lines (2) and (6) mark the cutting areas for the par-
tial replacement of the rear of the sill panel.
The lines (4) and (8) mark the cutting areas for the par-
tial replacement of the sill panel section under the door.
Previous cuts can be used to carry out more extensive
partial replacements:
-front partial replacement, cut (1) , (2) and (5)
-Rear partial replacement, cut (2) , (3) and (4) .
These operations allow you to access the inside of the
hollow section of the structural element to straighten it.
IV - ASSEMBLY INSTRUCTIONS FOR A PARTIAL
REPLACEMENT
Only the connections which are specific to the partial
replacement by cutting are indicated.
112726
110572
110574
110576

41C-4
SIDE LOWER STRUCTURE
Sill panel: General description
41C
If there are other issues regarding access to mating fa-
ces, the various replacement options are described in
the basic instructions for structural bodywork repair
(see MR 400).
Lines (1) , (2) and (5) on the drawing show a butt weld
by continuous EGW welding.
The welds described in this procedure are all identical.WARNING
If the mating faces of the parts to be welded are not
accessible, make EGW plug welds to replace the
original resistance welds (see MR 400).
110575

41C-5
SIDE LOWER STRUCTURE
Sill panel: Description
41C
The options for replacing this part are as follows:
-front partial replacement,
-partial replacement under door:
-Rear partial replacement
-complete replacement.
I - COMPOSITION OF THE SPARE PART
II - PART IN POSITION
1 - Partial front replacementSection A
Section B
2 - Partial replacement under door
120933
No. Description Type Thic-
kness
(mm)
(1) Sill panel Mild
steel0.75
120901
120903
120899
120896