Hello All

 

I own a 2018 Octavia III and need to purchase a new alloy as one of mine is losing air due to a slight buckle. 

Issue is I cannot ascertain which type of Xtrem alloys are installed on the car. 

I took the wheel off to try find a part number but unfortunately it had 3 different codes for each of the versions (Black Gloss , Anthracite & Silver metallic brushed)

 

I think its most likely the Silver metallic brushed but am unsure as any part picture i look at are showroom/computer generated images which are hard to rely on. 

 

Please look at the picture below and let me know if you can - any info is greatly appreciated. 

I'd say silver metallic brushed.

On 15/11/2021 at 21:15, Bernardtheblue said:

Hello All

 

I own a 2018 Octavia III and need to purchase a new alloy as one of mine is losing air due to a slight buckle. 

Issue is I cannot ascertain which type of Xtrem alloys are installed on the car. 

I took the wheel off to try find a part number but unfortunately it had 3 different codes for each of the versions (Black Gloss , Anthracite & Silver metallic brushed)

 

I think its most likely the Silver metallic brushed but am unsure as any part picture i look at are showroom/computer generated images which are hard to rely on. 

 

Please look at the picture below and let me know if you can - any info is greatly appreciated. 

 

 

It looks like someone has repainted them, as this is what the silver metallic colour looks like.

 

 

https://eshop.skoda-auto.cz/cs_CZ/kolo-z-lehke-slitiny-x-trem-19-pro-octavia-iii-rs/p/5E0071499B+8Z8

 

Many secondhand ones will be slightly buckled, as the super low profile 225/35R19 tyres offer the rims very little protection from pothole damage.

 

If you do keep them, fitting 235/35R19 tyres and using the same tyre pressures as you would use for the standard 225/35R19 tyres will help a little against pothole damage.

 

Fitting 235/35R19 instead of 225/35R19 only increases the sidewall height by 3.5mm, but the combination of using the same tyre pressures as 225/35R19 should combine to form a worthwhile improvement to resistance against pothole damage. Also 235/35R19 is only about 1% bigger in outside diameter than 225/35R19 so you will hardly notice the difference in gearing.

 

Another problem with these super low profile tyres, is if you get a slow puncture as by the time you realise that you have one you may already have buckled your rim. The pothole resistance problem is bad enough when using standard tyre pressures on super low profile tyres, but when you are underinflated it won't take long before the car hits a bump in the road that buckles the rim.

 

Check where the air is leaking from. You might just have a slow puncture. You can use soapy water to help find the lead, or remove the wheel and dip it in water. It's possible the rim isn't buckled. Sometimes a tyre fitter will damage the rim where the tyre bead sits against the rim, or the rim where the tyre bead sits may simply need cleaning up. Having air leak past the tyre bead is a common problem with alloy rims, but often easily solved with an alloy rim refurbishment.

 

Edited 23 November, 20214 yr by Carlston

The VAG wheel colour code is / used to be the last 3 digits of the PN.

For my winter wheels - VW Road America - PN 3B0601025L Z31, the colour code would be Z31- bright silver.