Hello, I’m out and about so not had chance to look at ETKA etc but does anyone know the part number of I guess a wingnut type fastener for the rear plastic undercover

Randomly noticed today that one is missing

It will not be a "wingnut" that you need just a plastic nut that has a built in "washer" shape to retain in the clips moulded into the covers - I'd think.

Edit:- if it is just a plastic nut that is missing, p/n WHT 000 713 Hexagonal Collar Nut Plastic should be what you need.

Another Edit:- or in that position it will be a clamping washer WHT 003 386 and, it seems a clamping washer N 903 350 04. - Scrub these last 2 numbers as they are for the exhaust heat shield, I can't see any "fittings" associated with that rear undercover, maybe check to see that a bit has not broken off before trying to order any fixings.

Edited 30 May30 May by rum4mo

Forgot to reply yesterday, thank you I ordered the plastic nut and should be here today

From what I could see that should be all that’s needed but if I need the clamping washer I’ll get that another time

still waiting for part which is WHT000713

But @rum4mo I think you’re onto something, it looks like it’s just a metal clamp washer N90335005

No nut goes over it according to parts diagram, what a stupid design considering it’ll always get wet

I’m hoping the part I have coming will somehow work still

Edited Sunday at 13:085 days by Danoid

These "star" fixings are a pain in the bottom!

VW used to use them on all the undercovers on the 9N Polo for instance, I always used to keep a few spares for when checking them at service time, later VW Polo 6C uses plastic nuts that have a flange that locates into the "retainers/clips" on that undercover recess, well they do that for where there is not a heat source nearby - where there is heat they use the "star" fixings, and the "brilliant" thing is, the heat shields have aluminium in them - so right away there tends to be a "squabble" between the steel of these clips and the aluminium in the heat shields and both lose out - the aluminium heat shield "dissolves" locally and the "star" fixings does what they do best which is to rust away to nothing!

It’s weird though as it’s for the plastic undershield so if they thought it would get hot enough to use those star clamps then why make the undershield plastic and not the aluminium.

The part it clamps into (apart from the metal screw) is plastic, very odd

I’ll see if the part coming screws on, if it does I’ll buy the metal clamp another time

Thanks

Yeah no joy with WHT000713

So bought these https://amzn.eu/d/0gwXOEAT it’s the right size (if anyone sees this in the future here’s the title “JatilEr 30 Pcs Heat Shield Clips, 30mm Heat Shield Repair Kit Steel Locking Star Washer Clips Shield Fasteners Engine Under Cover Fixing Clips, Heat Shield Fixing Clip Replacement for Various Autos”

Arriving tomorrow and I’ll be applying some Bilt Hamber UV spray on wax

Edited Sunday at 17:365 days by Danoid

Good stuff, in my early days with VW Group cars I did buy genuine VW Group "star" retainer clips - but not now, anything else cheaper gets used, I seem to saving the last of the genuine ones for -

I've also started buying in "repair patches" for when the aluminium heat shields "dissolve" locally - but that should take maybe 8 or 10 years for them to reach that point.

It could be that Skoda has not moved onto using the plastic flange nuts - yet.

I've checked the VW section of the parts listing and WHT 000 173 is the plastic flanged nut that fixes these plastic under covers AND - probably only for initial assembly, gets retained in place in the cover by the 2 "lips".