Nural Pistons

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Nural Pistons

Postby vladandrei51 » Wed Jan 09, 2019 7:05 am

Hello,

I want to proactively change the pistons on my 09 1.4 TSI scirocco. Besides the ones from the VW (which are not cheap) I've only found Nural pistons to have the OEM code of only CTHD pistons (03C107065CK). namely these: https://www.autodoc.co.uk/nural/10354030

Do you guys reckon it's worth going for the original VW pistons or I'm fine with Nural? Any of you used these? Those are twice as cheap as the VW ones and I'm not really sitting on a pile of cash :rolleyes: but I also don't want to go from shitty pistons to sightly less shitty

Or you you have OEM alternatives for CTHD pistons, I'm all ears

Thanks :D
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Re: Nural Pistons

Postby spuf » Wed Jan 09, 2019 5:19 pm

Hello hello.
I would generally say yes to Nural pistons(they are a part of Federal Mogul group so no problem here), but for this particular engine, I would stay on the very safe side.
First of first, there are no CTHD pistons. After 2012, all 1.4 TSI engines have the new and improved pistons. There is a whole story here. Mahle was the original manufacturer of pistons, and they kinda screwed up. After 2012, Kolbenschmidt redesigned the pistons, and the "cthd" piston was borned.

So, you basically have 3 large options:
- OEM pistons
- Kolbenschmidt pistons(these are the same pistons as the OEM, but at a good price, and a nice box)
- performance pistons(Wossner etc)

Here is the part code for the Kolbenschmidt piston: 40846600

Next time, give me a call 0723553802 :vibes:
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Re: Nural Pistons

Postby vladandrei51 » Wed Jan 09, 2019 9:08 pm

Thanks man, you are a real savior, haha.

Regarding the KS Pistons, are you 100% sure those are post 2012 pistons as found in cthd? The KS pistons have also piston part number found in CAVD engines (OE pistns and Nural does not), furthermore, there are online parts stores (which was confirmed by a family friend who runs a part store) which doesn't state CK part number (as in the post 2012 pistons) for the 40846600.

For example: https://m.motor-doctor.co.uk/products/7920224-piston

03C 107 065 CF, the latest part number for those pistons says it's a canceled piston build since 2012, see here http://www.oemepc.com/vw/part_single/ca ... d/0/lang/e
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Re: Nural Pistons

Postby spuf » Thu Jan 10, 2019 6:50 am

Yes, I am 100% sure, as my info was confirmed by a Kolbenschmidt rep.
Parts cross reference generally works for the OE codes, not aftermarket.
If you want to check aftermarket parts, always use the manufacturer catalogue, or contact them directly. https://onlineshop.ms-motorservice.com/ ... t&app=shop

Otherwise, KS lists the piston for the CTHD engine(of course they do, they make it for the VW factory).

Here you can see a OEM piston in the box: http://www.vag-express.ru/86046/
If you look carefully in the third picture, you can see the VW logo in the left, and the KS logo in the right.
And here you have a KS aftermarket piston: http://spufy1.ddns.net:5000/sharing/7X0ewImxE
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Re: Nural Pistons

Postby vladandrei51 » Thu Jan 10, 2019 8:58 am

Ok, fair enough, I did some digging too and everything you've said checks out.

It's just the fear that for most car parts stores for the KS piston the CK part number isn't listed only up to CF or whatever, yet a lot of people on this forum say KS pistons replace the Mahle shitty pistons.
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Re: Nural Pistons

Postby spuf » Thu Jan 10, 2019 9:04 am

If you want to sleep well, buy the OEM piston, and call it a day :D
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Re: Nural Pistons

Postby vladandrei51 » Thu Jan 10, 2019 10:17 am

I might, but atm I'm just really trying to get as much information as possible since the rebuilt is scheduled only 3-4 weeks by now.

Wossners are also a possibility too, and since you obviously know more about mechanical stuff than me I gotta ask: if I buy this kit (http://www.forgedpistonparts.com/vw-gol ... si-1-4ltr/) do I need anything else for complete piston replacement besides some gaskets, like rods or whatever? :D
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Re: Nural Pistons

Postby spuf » Thu Jan 10, 2019 12:41 pm

If you buy them in standard size, then you don't need other parts besides the regular(full gasket set - no exception; bolts etc)
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