MG MG6 Series 2011 - Corrosion Prevention

BodyRepair
CollisionRepair
CorrosionPrevention
FactoryT reatments
Duringproduction,vehiclebodiesaretreatedwiththe
followinganti-corrosionmaterials:
•APVC-basedunderbodysealerwhichissprayedontothe
undersideofthemainoor,rearoorandtherearwheel
arches.
•Anapplicationofcavitywaxwhichissprayedintothesill
panels,sidememberextensionsandthelowerareasof
thedoorpanels.
•Acoatofprotectivewaxisappliedtoareasofthewheel
archnotcoveredbytheliners.Wheneverbodyrepairs
arecarriedout,ensuretheanti-corrosionmaterialsin
theaffectedareaarerepairedorrenewedasnecessary
usingtheapprovedmaterials.
PrecautionsDuringBodyRepairsandHandling
T akecarewhenhandlingthevehicleintheworkshop.
Underbodysealers,seamsealers,underbodywaxandbody
panelsmaybedamagedifthevehicleiscarelesslylifted.
ProprietaryAnti-corrosionT reatments
Theapplicationofproprietaryanti-corrosiontreatments,in
additiontothefactory-appliedtreatment,couldinvalidatethe
CorrosionWarrantyandshouldbediscouraged.Thisdoesnot
applytohomologatedcompatible,preservativewaxeswhich
maybeappliedontopofexistingcoatings.
FittingApprovedAccessories
Whenttingaccessoriesensurethatthevehicle'scorrosion
protectionisnotaffected,eitherbybreakingtheprotective
coatingorbyintroducingamoisturetrap.
Donotscrewself-tappingscrewsdirectlyintobodypanels.Fit
suitableplasticinsertstothepanelbeforehand.Alwaysensure
thattheedgesofholesdrilledintopanels,chassismembers
andotherbodypartsareprotectedwithasuitablezincrich
oracidetchprimer,andfollowwithaprotectivewaxcoating
brushedontothesurroundingarea.
Donotattachpaintedmetalsurfacesofanyaccessorydirectly
tothevehicle'sbodyworkunlesssuitablyprotected.Where
metalfacesareboltedtogetheralwaysinterposeasuitable
interfacematerialsuchasweldablezincrichprimer,extruded
strip,orzinctape.
SteamCleaningandDe-waxing
Duetothehightemperaturesgeneratedbysteamcleaning
equipment,thereisariskthatcertaintrimcomponentscould
bedamagedandsomeadhesivesandcorrosionprevention
materialssoftenedorliqueed.Adjusttheequipmentsothat
thenozzletemperaturedoesnotexceed90°C(194°F).T ake
carenottoallowthesteamjettodwellononearea,andkeep
thenozzleatleast300mmfrompanelsurfaces.
DONOTremovewaxorlacquerfromunderbodyor
underbonnetareasduringrepairs.Shoulditbenecessary
tosteamcleantheseareas,applyanewcoatingofwaxor
underbodyprotectionassoonaspossible.
MaintenanceInspection
Carryoutthefollowingoperationstocheckbodyworkfor
corrosion:
•Withthevehicleonalift,carryoutvisualcheckof
underbodysealerfordamage.
•Withthevehiclelowered,inspectexteriorpaintworkfor
damageandbodypanelsforcorrosion.
Note:Ifthevehicleisdirty,itwillneedtobewashedprior
toinspectionofbodywork.
Thechecksdescribedaboveareintendedtobevisualonly.It
isnotintendedthattheoperatorshouldremovetrimpanels,
nishers,rubbingstripsorsound-deadeningmaterialswhen
checkingthevehicleforcorrosionandpaintdamage.
1.Withthevehicleonalift,andusinganinspectionorspot
lamp,visuallycheckforthefollowing:
•Corrosiondamageanddamagedpaintwork,conditionof
underbodysealeronfrontandrearlowerpanels,sillsand
wheelarches;
•Damagetounderbodysealer.Corrosioninareasadjacent
tosuspensionmountingsandfueltankxings.
Note:
The The
The
presence presence
presence
of of
of
small small
small
blisters blisters
blisters
in in
in
the the
the
underbody underbody
underbody
sealer sealer
sealer
is is
is
acceptable, acceptable,
acceptable,
providing providing
providing
they they
they
do do
do
not not
not
expose expose
expose
bare bare
bare
metal. metal.
metal.
Payspecialattentiontosignsofdamagecausedto
panelsorcorrosionprotectionmaterialbyincorrectjack
positioning.
Warning:Itisessentialtofollowthecorrectjackingand
liftingprocedures.
2.Withthevehiclelowered,visuallycheckforevidence
ofdamageandcorrosiononallvisiblepaintedareas,in
particularthefollowing:
•Frontedgeofbonnet.
•Visibleangesinenginecompartment.
•Lowerbodyanddoorpanels.
Rectifyanybodyworkdamageorevidenceofcorrosion
foundduringinspectionassoonasispracticable,bothto
minimisetheextentofthedamageandtoensurethe
longtermeffectivenessofthefactory-appliedcorrosion
preventiontreatment.Wherecorrosionhasbecome
evidentandisemanatingfrombeneatharemovable
component(e.g.trimpanel,windowglass,seatetc.),
removethecomponentasrequiredtopermiteffective
rectication.
Version2.0862