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Model specific boards => Golf mk7 => Topic started by: willni on 30 June 2021, 16:15

Title: PSA - Rear arch rust spot
Post by: willni on 30 June 2021, 16:15
Noticed this spot of rust beginning on my old GTD (30k miles) today on the rear arch (door side), I've seen another member comment about this previously and feel like it may become quite a common thing.

Does anyone have an ETKA drawing of how the rear arch liner is installed, and I think I'll be looking to make a plastic plate for my car to try and avoid this chipping area.

(https://i.postimg.cc/T14X3dMm/IMG-0181.jpg) (https://postimg.cc/D4LNCKzy)
Title: Re: PSA - Rear arch rust spot
Post by: My other womans a vw. on 30 June 2021, 19:01
Chipping area?-as in stone chips??
Title: Re: PSA - Rear arch rust spot
Post by: Mikeyd1 on 30 June 2021, 19:44
A plastic guard for this area would be ideal , it’s a vulnerable spot .
Title: Re: PSA - Rear arch rust spot
Post by: joe6 on 30 June 2021, 21:05
Just had this start on my mk6 (2010) 87k. Treated with rust remover, primer, top coat and underbody sealer and further top coat. Do not think it is stone damage, just winter weather, wear and tear.
Title: Re: PSA - Rear arch rust spot
Post by: Pete-r36 on 01 July 2021, 14:43
It’ll probably be too tricky for ppf but you could put some clear plastidip on the area to keep the water away and give it extra protection
Title: Re: PSA - Rear arch rust spot
Post by: SRGTD on 02 July 2021, 07:53
Chipping area?-as in stone chips??


Yes. It does look like the cause might have been a stone chip.

Not a mk7 / mk7.5, but I suspect the wheel arch liner is attached in the same way as it is on the mk6 Golf - held in place by a number of torx head screws. There’s a YouTube video of a mk6 Golf GTI rear wheel arch liner being removed at the link below;

https://www.youtube.com/watch?app=desktop&v=f9T_9RtU0z4

I notice that the black plastic sill extension doesn’t seem to sit flush with the sill (you can see the fixing strip behind the sill extension in the picture - on the two Polo GTI’s I’ve owned with the same style and design of plastic sill extensions, the fixing strip is completely concealed).

(https://i.postimg.cc/G3Mb0VbH/B0-AD8112-3-E22-4370-813-F-93-AEE3-A5-BB0-B.jpg) (https://postimages.org/)

It might’ve just been poorly fitted in the factory, or maybe they’re all like that on the mk7 / mk7.5 Golf GTI / GTD?. Alternatively, if @willni hasn’t owned the car from new, that gap between the plastic sill extension and the metal sill might suggest the sill extension has been removed / refitted at some point prior to @willni owning the vehicle - maybe for paint repairs to be carried out on that lower corner of the wheel arch? If so, then if poor or substandard prep work has been carried out prior to repainting, or repainting has been done in an unsuitable environment that’s not temperature / humidity controlled (SMART repair?), could that mean the new paint in that area is a weak point that’s more susceptible to stone impact damage?
Title: Re: PSA - Rear arch rust spot
Post by: willni on 03 July 2021, 07:48
(https://i.postimg.cc/G3Mb0VbH/B0-AD8112-3-E22-4370-813-F-93-AEE3-A5-BB0-B.jpg) (https://postimages.org/)

It might’ve just been poorly fitted in the factory, or maybe they’re all like that on the mk7 / mk7.5 Golf GTI / GTD?.

Actually I replaced it because my dog decided to chew it :whistle:, so I must admit it was poor fitting on my behalf. They're surprisingly stiff plastic clips on them with fragile plastic so was afraid of breaking it, I'll make to to push it in next time I see it (and no my dog hasn't attacked the new car...yet :wink:)

It’ll probably be too tricky for ppf but you could put some clear plastidip on the area to keep the water away and give it extra protection

I'd agree ppf probably won't work there due to the shape, clear plastidip would be a very good shout.
Title: Re: PSA - Rear arch rust spot
Post by: Mikeyd1 on 08 July 2021, 12:49
The paint on mine is thin down there, so I added a touch of vw rubber type underseal which can be painted in 3 hours.
(https://i.postimg.cc/XYMgHzcj/F61-AB759-4362-499-C-B74-D-0-D7-BB04-C0-FC6.jpg) (https://postimg.cc/9rpTz1nK)
Title: Re: PSA - Rear arch rust spot
Post by: Mikeyd1 on 09 July 2021, 14:24
A bit crued but the idea is sound. Also did some spats for front as the wings are also subject to abrasions.
(https://i.postimg.cc/qM3g4Fn8/0-D2-CEB7-C-A8-BC-47-EF-BF12-EDE2-D7-ECD7-F1.jpg) (https://postimg.cc/vcGGv30B)

(https://i.postimg.cc/d13tXNwZ/584-CC90-E-8-AB9-45-CF-B7-EC-BBB12-D2-E918-B.jpg) (https://postimg.cc/XGMbB8Zn)

(https://i.postimg.cc/rmHFLGwn/D8821-E6-A-0302-4954-8185-68-D2381-A5-CB2.jpg) (https://postimg.cc/wyhdXmJL)
Title: Re: PSA - Rear arch rust spot
Post by: Mikeyd1 on 14 June 2024, 14:13
Something to think about I’ll put a bit of p rubber weather seal  from Amazon . U can’t notice it’s there and  should provide some protection against the small but rust causing sand blast effect
(https://i.postimg.cc/6pBMZ15j/IMG-0729.jpg) (https://postimg.cc/1fY0hBFw)

(https://i.postimg.cc/6pBMZ15j/IMG-0729.jpg) (https://postimg.cc/1fY0hBFw)
Title: Re: PSA - Rear arch rust spot
Post by: Redreels on 26 June 2024, 19:01
Does anyone have a picture of the fixing point for the OEM front GTI mudflaps please?

I purchased some from eBay and the packaging label had a VW part number but are clearly a Chinese alternative.

There are three mounting holes, the two outer are fine but the inner one appears to have to pass through the arch liner but there is no existing hole or fixing.

As a result they are in the boot at the moment as I am reluctant to force a self tapper throught the arch liner.

Any bell would be appreciated.

Cheers

James
Title: Re: PSA - Rear arch rust spot
Post by: bogwoppit on 26 June 2024, 19:52
Hopefully these help

(https://i.postimg.cc/Xqb9s5WJ/20240626-195021.jpg) (https://postimg.cc/LYxqXnnK)


(https://i.postimg.cc/J0xHKdK6/20200208-150528.jpg) (https://postimg.cc/Zv9q5HGp)
Title: Re: PSA - Rear arch rust spot
Post by: Redreels on 26 June 2024, 20:07
Absolute, legend! I wasn’t expecting that. Thank you, I will attach some pictures of the mudflaps perhaps to the other thread so as not to detail this one.

Thanks again