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Rust starting to come through - Rear Wheelarch
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MarcusD3
 


Member Since: 04 Apr 2016
Location: Cheshire
Posts: 11

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4
Rust starting to come through - Rear Wheelarch

Hi Guys,

This has been showing for a while now and slowly getting worse, just after some advice on how to attack it?

Hopefully the image shows below!

Thanks in advance

  
Post #196524219th Jul 2018 7:20 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10363

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

If you take the plastic wheel arch off you will find loads of mud sand.

Bit late for you. Others be warned
  
Post #196528019th Jul 2018 9:10 pm
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Discomadness
 


Member Since: 19 Jan 2015
Location: Caerphilly
Posts: 2256

Wales 2007 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Arch liner off, plastic sill cover off, get jabbing with a pointy tool like a screwdriver. If it’s not weak it will hold, the rust can be ground off and treated/repainted with something that converts the rust, treat the inside with cavity wax. If it goes through then it’s going to be cutting out and welding in new sections. Having scrutinised mine this week there are a few areas that will bite us in the years to come.
 Jarrod

Current : D3 2007 HSE - AKA the lemon
-beanie grille
-detango with led bulbs
-club body off rebuild. TWICE. 
 
Post #196528619th Jul 2018 9:36 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

That only looks like surface rust to me, as said get the sill guards off for a clean/check.
Remove rust and treat/paint then apply motorcycle aerosol chain grease inside the sills, gets in all the nooks and crannies and will last for the a good few years.
  
Post #196534920th Jul 2018 6:49 am
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Mikeyb
 


Member Since: 08 Nov 2016
Location: Maldon, Essex
Posts: 515

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

dont forget to look at the underneath bit too. Mine was surface rusty behind the rear heater coolant pipes (HSE) that ran don the lenght of the inner sill due to JLR's inability to paint and protect a car properly!
 Not such a Disco Newbie now!
IID BT 
 
Post #196535320th Jul 2018 7:23 am
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LR3norway
 


Member Since: 25 Dec 2016
Location: NORWAY
Posts: 193

Norway 

Buy a point sandblaster. Get all the rust away and seal it in with 2k epoxy primer, before colour and clear. SprayMax 2k rattle can is the easiest way for DIY. Spray the cavity with rust penetrating oil.
  
Post #196541120th Jul 2018 11:04 am
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