WarningObserve the safety and cleanliness recommendations
WarningObserve the precautions to be taken for the pre-tensioning components
WarningFor any paint retouching operation on a vehicle that has the STOP and START system requiring a paint booth, it is necessary to remove the central voltage retention device assembly (DMTC) if the temperature exceeds 80°C
WarningAll of the stripped surfaces must be protected by means of the approved electrolytic rezincing process
WarningThe number of spot welds necessary for the assembly of a new part must be identical to the number of spot welds fixing the original part
Information
Types of weld bead by electric arc procedure on this component
- MIG brazing with cupro-aluminium rod used with an inert gas
- MAG welding with steel rod and used with active gas
Designations of the high strength steels used in this document
- High strength: high strength steel
- THLE: very high strength steel
- UHLE: ultra high strength steel
NoteUse the products recommended by the manufacturer
Tooling
Checking jig
| tool | Reference | designation |
|---|---|---|
| [1366-ZZ] | toolkit for testing electric spot welds | |
| [1366] | samples for testing electric spot welds | |
| [1126] | set of spot weld cutters | |
| swan's neck drill for cutting out electric spot welds | ||
| hot air blower |
Preliminary operations
Deactivate the pyrotechnic systems
Disconnect the ancillaries battery
WarningEither remove or protect those components which are in the repair zone and risk being damaged by the heat or the dust
Remove
- The front bumper
- The front headlamp
- The frame of the front bumper
- The anti-recirculation of air panel
- Transverse front section
WarningIf the vehicle has the Stop and Start system; remove-refit the voltage retention device
Release the wiring harnesses
Replace the front block half-panel stiffener
Location of the replacement part
| reference | designation |
|---|---|
| (1) | front panel support |
| (2) | front half-panel stiffener |
Identification of replacement parts
Composition: front panel support
| reference | designation | thickness | nature/classification |
|---|---|---|---|
| (1) | front panel support | 1,17 mm | mild steel |
| reference | designation | thickness | nature/classification |
|---|---|---|---|
| (2) | front half-panel stiffener | 1,17 mm | THLE |
Identification of the parts adjacent to the replacement part
| reference | designation | thickness | nature/classification |
|---|---|---|---|
| (3) | chassis member bracket | 1,17 mm | THLE |
| (4) | chassis leg (front section) | 1,47 mm | mild steel |
| (5) | chassis leg end piece | 3 mm | THLE |
NoteSave the front panel bracket plate (6)
Preparation of the replacement parts
WarningWhen cleaning the mating edges, use scouring wheels only to avoid damaging the anticorrosion protection
Mark then drill to diameter 6,5 mm (or 8 mm for the heavy thicknesses) for later plug welding
Prepare the mating edges and protect them using a weldable primer (index "C7")
NoteApply the weld-through primer on the internal faces of the panels to be welded
Prepare the mating edges and protect them using a weldable primer (index "C7")
NoteApply the weld-through primer on the internal faces of the panels to be welded
Cutting of the parts on the body
Cut out the spot welds
Remove the front panel support (1)
Cleaning and preparation of the body
Prepare the mating edges and protect them using a weldable primer (index "C7")
NoteApply the weld-through primer on the internal faces of the panels to be welded
Adjustment
Position the front panel support (1)
Holds the part in position
Welding
Weld with electric spot welds
Position
- The front half panel strengthener (2)
- The front panel support plate (6)
- Transverse front section (7)
Retain the front half panel strengthener (2) in position
Remove
- Transverse front section (7)
- The front panel support plate (6)
Weld with electric spot welds
Sealing protection
Apply a phosphate-print layer to the zones laid bare
Painting, then spraying of the index "C5" product into the hollow sections in the repair zone
Additional operations
Refit the electrical harnesses and the components removed
Reinitialisation
Reactivate the pyrotechnic systems
WarningPerform the operations that are required following a reconnection of the ancillaries battery
Reconnect the ancillaries battery