Contents Wiring diagrams Section: Side structure All sections

Replacement: sill web (partial) Citroen C5 II

Side structure ~514 words

WarningObserve the safety and cleanliness recommendations

WarningAll of the stripped surfaces must be protected by means of the approved electrolytic rezincing process

Information

The type of weld bead by means of the electric arc process used on this component is the following

MIG / MAG welding

Designations of the high strength steels used in this document

  • High strength: high strength steel
  • THLE: very high strength steel
toolreferencedesignation
[1366-ZZ]toolkit for testing electric spot welds
[1366-B]samples for testing electric spot welds
swan's neck drill for cutting out electric spot welds

Additional operations

Disconnect the battery

WarningRemove or protect the components that are in the repair area and that can be damaged by heat or dust

Release the wiring harnesses

Replace the passenger compartment side (complete or part)

Location of the replacement part: sill strengthener

referencedesignation
(1)sill web

Identification of the replacement part: sill web

Composition: replacement part

referencedesignationthickness (mm)nature/classification
(1)sill web (assembled)--
(1a)rear pillar lower strengthener0,77mild steel
(1b)sill partition1,76mild steel
(1c)sill web1,27THLE
(1d)rear jacking point2,5high strength

Identification of the parts next to the core of the side member

referencedesignationthickness (mm)nature/classification
(1)sill web (assembled)--
2front interior longeron1,17THLE
(3)side panel0,72mild steel
(4)front pillar bottom bulkhead1,95THLE
(5)front wing inner panel1,17high strength
(6)front pillar strengthener1,47high strength

Replacement part preparation: sill web (partial)

WarningWhen cleaning the mating edges, use scouring wheels only to avoid damaging the anticorrosion protection

A = 324 mm

Mark then saw out (at "a") (final cutting)

Remove the side member core (7) (partial)

Preparation: side member core repair sleeves

B = 100 mm

(1) sill web (assembled)

(7) sill web (partial)

(8) side member core repair sleeves

Mark then saw out (at "b")

Remove the repair sleeve from the side member core (8) (partial) (preliminary cut)

(8) side member core repair sleeves (partial)

Mark then saw out (at "c") (final cutting)

Assembly of the repair sleeve onto the partial side member core

(7) sill web (partial)

(8) side member core repair sleeves

D = 50 mm

Position the repair sleeves (8) on the partial side member core (7)

Weld with electric spot welds

Drill to a diameter of 8,5 mm for later MAG plug welding (at "d")

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 part on the body

E = 324 mm

Mark then cut (at "e")

Cut out the electric spot welds

Remove the side member core (9) (front section)

Cleaning and preparation of the body

Mark out - drill to a diameter of 8,5 mm for later MAG 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

Adjustment

Position: the sleeved partial side member core

Adjust the cuts (if necessary)

Holds the part in position

Welding

MAG weld with beads in succession (at "f")

Weld with MAG plug welds

NoteTo avoid altering the mechanical strength of the side member core, it is recommended not to grind the MAG weld beads that are not directly in contact with the passenger compartment side

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

Reconnect the battery

WarningPerform the operations to be carried out following reconnection of the battery