Staining under wing mirror, corroded aluminium?

[McShmoopy]

Hey guys

I'm planning on opening up the wing mirrors of my IS250 to replace the puddle light bulb as well as the glass and noticed that the staining running underneath the wing mirrors is quite bad, from what I've researched apparently the aluminium in the wing mirror frame tends to get corroded from rain and salt and this causes the dripping / staining underneath. I was thinking to get some corrosion inhibitor and give the whole area a clean, has anyone else managed to address this also and have any tips?

 

[Tyre Tread]

Mine has the same issue from both the mirrors and the door handles. 

The paintwork otherwise is excellent.

[2AD FHV]

Hi, I have the same issue, it doesn't show up as much on mine, as its silver. I took it a local bodyshop, who is confident he can buff it out as it hasn't penetrated the lacquer.

[McShmoopy]

On 5/25/2024 at 10:08 AM, Tyre Tread said:

Mine has the same issue from both the mirrors and the door handles. 

The paintwork otherwise is excellent.

58 minutes ago, 2AD FHV said:

Hi, I have the same issue, it doesn't show up as much on mine, as its silver. I took it a local bodyshop, who is confident he can buff it out as it hasn't penetrated the lacquer.

Oh yeah if you polish it out slightly you can get the staining out, my concern was more addressing the root cause. After deep cleaning my car I realised that some of the corrosion has in fact spread to my body work so I reckon Im going to take the wing mirror apart and see if I can sand the corrosion and give it some paint to prevent further staining and then polish the bodywork clean. I'll provide some updates to show how I get on, Im just nervous removing door cards incase I break any clips haha 

[normski2]

This should help you with removing the door card. It's not too difficult really.

I think I would try a good wire brushing of the powdery surface followed by a careful application of etching primer from a rattle can and then a top coat to lock it in