2009 RENAULT TWINGO Panelwork Workshop Manual

41D-6
REAR LOWER STRUCTURE
Rear side member assembly: Description
C44
41D
II - PART FITTEDIII - POSITIONING OF LOCAL ELECTRICAL
EARTHS No. Description Type Thic-
kness
(mm)
(1) Rear side mem-
ber reinforcementHLE1.5
(2) Connection com-
ponent reinforce-
mentHLE1.5
(3) Rear spring cup
reinforcementHLE1.5
(4) Side cross mem-
ber reinforcementMild
steel0.95
(5) Lower section of
rear side cross
memberHLE0.95
(6) Upper section of
rear side cross
memberHLE0.95
(7) Rear axle bea-
ring spacerHLE2.5
(8) Rear spring cup HLE1.5
(9) Rear side mem-
berHLE1.5
(10) Exhaust moun-
ting stiffenerMild
steel2
120977
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).
121249
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).

41D-7
REAR LOWER STRUCTURE
Rear side member: General description
41D
I - DESIGN OF THE STRUCTURAL COMPONENT
This is a basic part; it simply fulfils the function of a rear
side member.II - AREA TO BE CUT FOR PARTIAL
REPLACEMENT
Cut 1:
This line marks the area in which it is possible to make
a partial replacement.
This marking shows the area in which it is possible to
make a partial replacement.
III - ASSEMBLY INSTRUCTIONS FOR A PARTIAL
REPLACEMENT
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 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.
121042
120979
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).

41D-8
REAR LOWER STRUCTURE
Rear side member: Description
41D
To replace this part, order the crimped nut (A) . To fit
the crimped nut ( (see Bolted connection with crim-
ped mounting: Fitting) Fitting).
There is only one way of replacing this part:
-Partial replacement of the rear section.
I - COMPOSITION OF THE SPARE PARTII - PART IN POSITION
Partial replacement of the rear section
121043
IMPORTANT
The straightening bench must be used.
121181
No. Description Type Thic-
kness
(mm)
(1) Rear side mem-
berHLE 1.5
120979
WARNING
The position of this cut must be obser ved, and is
determined according to the position of the internal
reinforcements or acoustic inserts cut.
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.

41D-9
REAR LOWER STRUCTURE
Rear side member: Description
41D
III - POSITIONING OF LOCAL ELECTRICAL
EARTHS
121249
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.

41D-10
REAR LOWER STRUCTURE
Rear floor front cross member: General description
41D
I - DESIGN OF THE STRUCTURAL COMPONENT
This part is commonly called « cross member » .
The rear seat anchoring reinforcements are connected
to the rear floor front cross member.
II - AREA TO BE CUT FOR PARTIAL
REPLACEMENT
Cut 1:
This line marks the place in which it is possible to makea partial replacement. WARNING
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, 40A, General Information.
109662
110644

41D-11
REAR LOWER STRUCTURE
Rear floor front cross member: General description
41D
This operation allows you to access the inside of the
hollow section of the structural element to straighten it.
III - ASSEMBLY INSTRUCTIONS FOR A PARTIAL
REPLACEMENT
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, 40A, General Information).
Line (2) on the diagram shows a joint made by joggling
connected with plug welds at regular intervals.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.
110644

41D-12
REAR LOWER STRUCTURE
Rear floor front cross member: Description
41D
There is only one way of replacing this part:
-partial replacement.
I - COMPOSITION OF THE SPARE PARTII - PART IN POSITION
Partial replacement
III - POSITIONING OF LOCAL ELECTRICAL
EARTHS
121515
121011
No. Description Type Thic-
kness
(mm)
(1) Cross member HLE 1.5
(2) Rear seat runner
front stiffenerMild
steel1.2
(3) Front centre
reservoir moun-
tingHLE 1.2
121227
121250
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.

41D-13
REAR LOWER STRUCTURE
Rear floor centre cross member: General description
41D
DESIGN OF THE STRUCTURAL COMPONENT
This is a basic part; it only fulfils the function of a rear
floor centre cross member.WARNING
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, 40A, General Information.
120932