2009 RENAULT TWINGO Panelwork Workshop Manual

41A-10
FRONT LOWER STRUCTURE
Front side member, front section: Description
41A
IMPORTANT
To avoid damaging the vehicle's electric and elec-
tronic components, the battery and the earths of
any wiring harness near the weld area must be dis-
connected.
The earth of the welding machine must be placed
as close as possible to the weld area.

41A-11
FRONT LOWER STRUCTURE
Front side member closure panel, front section: General description41A
I - DESIGN OF THE STRUCTURAL COMPONENT
This is a basic part; its only function is that of front side
member closure panel, front section.
II - AREA TO BE CUT FOR PARTIAL
REPLACEMENT
For removal of the side member (see Front side mem-
ber: Description) .Cut 1:
This line shows the centre of the area in which it is pos-
sible to carry out a partial replacement.
This operation allows you to access the inside of the
hollow section of the structural component to straigh-
ten it.
III - ASSEMBLY INSTRUCTIONS FOR A PARTIAL
REPLACEMENT
In this case, the side member weld line must be stag-
gered from that of its closure panel.
Only the connections which are specific to the partial
replacement by cutting are indicated.
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). IMPORTANT
Use a repair bench to ensure the positioning of the
points and the geometr y of the axle assemblies.
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 the following general information,
make sure that there are no special notes associa-
ted with the vehicle. These special notes are speci-
fied if necessary in other par ts of the sub-section
dealing with the component.
Note:
For a detailed description of a particular connec-
tion, see MR 400.
109550
Note:
For the partial replacement of parts constituting a
single structural component, it is essential to stag-
ger the welds of each of the components.
110553
Note:
For the partial replacement of parts constituting a
single structural component, it is essential to stag-
ger the welds of each of the components.
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).

41A-12
FRONT LOWER STRUCTURE
Front side member closure panel, front section: General description41A
Line (3) on the drawing shows a butt weld by conti-
nuous EGW welding.
110554

41A-13
FRONT LOWER STRUCTURE
Front side member closure panel, front section: Description41A
The options for replacing this part are as follows:
-partial replacement,
-complete replacement.
I - COMPOSITION OF THE SPARE PARTII - PART FITTED
1 - Partial replacement
Left-hand side
Right-hand side
2 - Complete replacement
Left-hand side
120638
No. Description Type Thic-
kness
(mm)
(1) Front section of
front side mem-
ber closure panelHLE1.4
120641
120639
120642

41A-14
FRONT LOWER STRUCTURE
Front side member closure panel, front section: Description41A
Right-hand side
III - POSITIONING OF LOCAL ELECTRICAL
EARTHS
120640
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).
121245
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).

41A-15
FRONT LOWER STRUCTURE
Front side member, rear section: Description
41A
To replace this part, also order the centre floor reinfor-
cement (1) .
There is only one way of replacing this part:
-complete replacement.
I - COMPOSITION OF THE SPARE PARTII - PART FITTED
120635
IMPORTANT
The straightening bench must be used.
120636
No. Description Type Thic-
kness
(mm)
(2) Front subframe
rear mounting
stiffenerMild
steel2
(3) Front side mem-
ber rear partHLE2
(4) Front subframe
rear mountingMild
steel2.5
(5) Centre floor front
side cross mem-
berMild
steel1
120637
WARNING
If the spot welds cannot be made as they were ori-
ginally using an electrical spot welding machine,
they should be replaced with plug welds after holes
have been drilled in the first panel.

41A-16
FRONT LOWER STRUCTURE
Front side member, rear section: Description
41A
III - POSITIONING OF LOCAL ELECTRICAL
EARTHS
121246
IMPORTANT
To avoid damaging the vehicle's electric and elec-
tronic components, the battery and the earths of
any wiring harness near the weld area must be dis-
connected.
The earth of the welding machine must be placed
as close as possible to the weld area.

41A-17
FRONT LOWER STRUCTURE
Front subframe front mounting: General description
41A
DESIGN OF THE STRUCTURAL COMPONENT
This part comprises two components:
-front subframe front mounting support unit (1) ,
-front subframe front mounting component (2) . IMPORTANT
Use a repair bench to ensure the positioning of the
points and the geometr y of the axle assemblies.
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 the following general information,
make sure that there are no special notes associa-
ted with the vehicle. These special notes are speci-
fied if necessary in other par ts of the sub-section
dealing with the component.
Note:
For a detailed description of a particular connec-
tion, see MR 400.
109560