I just bought a 2017 2.0 TDI, and on the rear it has, I believe, non XL tyres fitted. 
 

Is that safe / OK? What are the OEM fit? These are Continental Sport Contact 5, 235/45/R18W.

10 minutes ago, ArminTamzarian said:

I just bought a 2017 2.0 TDI, and on the rear it has, I believe, non XL tyres fitted. 
 

Is that safe / OK? What are the OEM fit? These are Continental Sport Contact 5, 235/45/R18W.

 

According to wheel-size.com (and they are sometimes wrong), 235/45R18 tyres are pumped up to 2.4 Bar (35psi) / 2.2 Bar (32psi). You only need XL tyres if you are going to pump them up to more than 3 Bar (44psi).

Skoda Superb 2017 2.0TDI

– Generation: III B8 (3V) [2015 .. 2019]  

– Power: 188 hp | 140 kW | 190 PS 

– Engine: 2.0L, DDAA, I4, Diesel

– Options: SE L, Sportline, Ambition, Style, L&K, Executive

– Center Bore: 57.1 mm 

– PCD: 5x112 

– Wheel Fasteners: Lug bolts 

– Wheel Tightening Torque: 140 Nm

– Thread Size: M14 x 1.5 

– Trim Production: [2015 .. 2019]

Tire	Rim
215/55ZR17 94W	7Jx17 ET40	2.3 / 2.1
235/45ZR18 94W	8Jx18 ET44	2.4 / 2.2

 

https://www.wheel-size.com/size/skoda/superb/2017/#trim-20tdi-eudm-188

 

Edited 26 July, 20214 yr by Carlston

Thanks for such a quick reply! Sounds like I’m alright then. 
 

Replacing one of the tyres due to a bulge(!), so want to make sure I get the right one. 

56 minutes ago, ArminTamzarian said:

I just bought a 2017 2.0 TDI, and on the rear it has, I believe, non XL tyres fitted. "
 

Is that safe / OK? What are the OEM fit? These are Continental Sport Contact 5, 235/45/R18W.

"XL" means "eXtra Load"; only really needed if you regularly do stuff like 4 up plus luggage plus trailer.

Funnily XL tyres in 205/40 R 17  were OEM fit to some Mk2 Fabia vRS that are 5 seaters at a push and can not tow as not approved.

 

13 hours ago, e-Roottoot said:

Funnily XL tyres in 205/40R17 were OEM fit to some Mk2 Fabia vRS that are 5 seaters at a push and can not tow as not approved.

 

Non-XL 205/40R17 tyres have a load index of only 80 (450kg), which isn't enough for the Fabia MK2. Hence it was fitted with XL 205/40R17 tyres which have a load index of 84 (500kg).

 

Not only that, but non-XL tyres in size 205/40R17 are extremely rare. Most of the big brands don't even make non-XL tyres in the 205/40R17 size.

 

Skoda Fabia MK2 1.4TSI

– Generation: Mk2 (5J) [2007 .. 2014]  

– Power: 177 hp | 132 kW | 179 PS 

– Engine: 1.4L, CAVE, I4, Petrol

– Options: vRS

– Center Bore: 57.1 mm 

– PCD: 5x100 

– Wheel Fasteners: Lug bolts 

– Wheel Tightening Torque: unknown

– Thread Size: M14 x 1.5 

– Trim Production: [2010 .. 2014]

Tire	Rim
205/45R16 83V	6.5Jx16 ET43	2.2
205/40ZR17 84W	7Jx17 ET48	2.2

 

https://www.wheel-size.com/size/skoda/fabia/2010/#trim-14tsi-eudm-177

 

Edited 27 July, 20214 yr by Carlston

So towing is a red herring.  as is tyre pressures.  But hey hoe.   

 When Manufacturers fit XL tyres as OEM then best that replacements are as well.