Converting Karoq SE-L with space saver spare wheel to full-size spare wheel

[Zanskar]

I'm a newbie here and have been following this thread with interest. I have recently purchased a nearly new 2WD Karoq 1.5 TSi SE Drive with 17" wheels. It comes, of course, with a can of gunge in lieu of a spare wheel and I would much prefer a full-size spare on a steel rim. Reading this thread, it seems that I need the following items:

 

- a 57A093860 kit
- a 215x55x17 tyre to match the ones on the car
- a steel wheel which I believe should be a 7J 17 ET45 5x112 pcd

 

The hard part is finding the steel wheel. I have looked on the MyTyres website and the nearest that I can find is Alcar Steel wheel 9021 6,5J 17 ET38 5x112 17 Inch which is listed for a Skoda Kodiaq (the MyTyres database for the Karoq looks well out of date as it shows only 16 inch wheels).

 

I see that this topic at www.briskoda.net/forums/topic/509941-tyres-again-7j-or-75j/ states that a 6.5J rim will take a 215/55R17 tyre and will give a medium to hard ride so the 6,5J rim may be the one to go for.

 

Have I got anything wrong with any of the above before I start purchasing things?

 

Any help and suggestions greatly appreciated!

[Carlston]

2 hours ago, Zanskar said:

I'm a newbie here and have been following this thread with interest. I have recently purchased a nearly new 2WD Karoq 1.5 TSi SE Drive with 17" wheels. It comes, of course, with a can of gunge in lieu of a spare wheel and I would much prefer a full-size spare on a steel rim. Reading this thread, it seems that I need the following items:

 

- a 57A093860 kit
- a 215x55x17 tyre to match the ones on the car
- a steel wheel which I believe should be a 7J 17 ET45 5x112 pcd

 

The hard part is finding the steel wheel. I have looked on the MyTyres website and the nearest that I can find is Alcar Steel wheel 9021 6,5J 17 ET38 5x112 17 Inch which is listed for a Skoda Kodiaq (the MyTyres database for the Karoq looks well out of date as it shows only 16 inch wheels).

 

I see that this topic at www.briskoda.net/forums/topic/509941-tyres-again-7j-or-75j/ states that a 6.5J rim will take a 215/55R17 tyre and will give a medium to hard ride so the 6,5J rim may be the one to go for.

 

Have I got anything wrong with any of the above before I start purchasing things?

 

Any help and suggestions greatly appreciated!

 

The mytyres database isn't out of date. It doesn't show a 7Jx16 ET45 5/112 57.1 steel rim for the Karoq because no one makes that specification. The only steel rim that is made for the Karoq is the 6Jx16 ET43 5/112 57.1 steel rim.

 

There are other steel rims that could be considered for use, but there's not much available above 16". Like you say, the 6.5Jx17 ET38 steel rim from the Kodiaq could be considered.

 

Before purchasing a spare wheel (which is the expensive part), I suggest you purchase the foam kit for the Karoq 2WD which includes the jack, ie. OEM part number 57A093860. This should be available to order from a VAG/Skoda dealers's parts department for about £50 or a little less.

 

Once you get the foam, you will need to work out how much room there is for a spare wheel.

 

The OP found that the carpet was lifted slightly with his solution. From one of the photos, it looks like he used a 215/55R17 fitted to a 7Jx17 ET45 alloy rim. You may want to avoid this outcome by using a slightly narrower spare tyre than 215/55R17 fitted to a 7J rim, such as a 215/60R16 fitted to a 6Jx16 ET43 steel rim (or alloy).

 

You might find that the outside diameters of the Karoq 2WD tyres (such as 215/60R16, 215/55R17) are too big to fit inside the foam. In one of the official Skoda photos for this kit, it shows a spare saver fitted inside the foam not a full-size wheel. The space saver tyre shown is 125/70R18 and this size has an outside diameter about 5% smaller than a full size Karoq 2WD tyre.

 

If you can't fit a Karoq 2WD tyre inside the Karoq 2WD foam kit with OEM part number 57A093860 you might then need to purchase the Karoq 4WD foam kit with OEM part number 57A093860A which is about twice the price, ie. about £100.

 

Maybe ask the dealer if a Karoq 2WD tyre will fit inside the Karoq 2WD foam spare wheel kit? although I doubt he would know.

[Zanskar]

Hi Carlston,

Many thanks for your comprehensive message - very informative and useful.

 

I take your point about ordering the 57A093860 foam kit first before doing anything else so I will do that and see where we go.

 

Thanks again.

 

[blankwrong]

On 19/01/2023 at 23:32, Carlston said:

 

From the 57A093860A part number, the OP appears to have ordered the Karoq 4x4 spare wheel kit for his Karoq 4x2. However, from the photo below it appears that the Karoq 4x2 kit is only suitable for a 125/70R18 space saver (this point needs confirming). This is because the outside diameter of a full size tyre (eg. 215/60R16, 215/55R17, 215/50R18) is about 5% larger than the outside diameter of a 125/70R18 space saver tyre. You can see from the photo that there's not much room around the outside of the 125/70R18 space saver tyre. For example, the radius of a 215/50R18 tyre is 20mm larger than the radius of the 125/70R18 space saver tyre.

 

The OP said that his full size wheel, which might have been 215/50R18, raised the carpet slightly. As you can see in one of my charts below the 215/50R18 tyre fitted to a 7J rim has an actual width when inflated of 226mm. This is 11mm more than the actual width of a 215/60R16 tyre fitted to a 6J rim. For this reason, it might be better to use the 215/60R16 tyre size as a spare as the carpet would be raised less or not at all.

 

Outside diameter of tyres

125/70R18 632.2mm

215/60R16 664.4mm

215/55R17 668.3mm

215/50R18 672.2mm

 

Actual width of inflated tyres

215/60R16 fitted to 6J rim 215mm

215/55R17 fitted to 7J rim 226mm

215/50R18 fitted to 7J rim 226mm

 

Karoq 4x2 spare wheel kit 57A093860 (Only for 4x2 vehicles with a basic boot floor and standard fitted rear seats)

https://eshop.skoda-auto.cz/cs_CZ/sady-pro-vymenu-kol/c/setsToChangeWheels?q=%3ApriceAsc%3AcarType%3AKaroq%2B%282017%2B%29

 

Karoq 4x4 spare wheel kit 57A093860A (Only for 4x4 vehicles with a basic boot floor and standard fitted rear seats)

https://eshop.skoda-auto.cz/cs_CZ/sada-pro-vymenu-rezervniho-kola/p/57A093860A

 

Ahh I see so it’s the one with A at the end of the product code.

 

Regarding the tyre widths I’m almost certain Skoda put 225’s on my 18” Bragas just before I picked it up, do you think this will cause an issue with the new boot floor height?

 

So many variables I want to try and get over before I pull the trigger on a shiny new 5th alloy and wheel well kit.

[Carlston]

20 hours ago, blankwrong said:

Ahh I see so it’s the one with A at the end of the product code.

 

Regarding the tyre widths I’m almost certain Skoda put 225’s on my 18” Bragas just before I picked it up, do you think this will cause an issue with the new boot floor height?

 

So many variables I want to try and get over before I pull the trigger on a shiny new 5th alloy and wheel well kit.

 

The Karoq 2WD and Karoq 4WD use different tyre sizes.

 

Karoq 2WD tyre sizes

215/60R16

215/55R17

215/50R18

225/40R19

 

Karoq 4WD tyre sizes

225/60R16

225/55R17

225/50R18

225/45R19

 

Edited 23 January, 2023 by Carlston

[blankwrong]

7 hours ago, Carlston said:

 

The Karoq 2WD and Karoq 4WD use different tyre sizes.

 

Karoq 2WD tyre sizes

215/60R16

215/55R17

215/50R18

225/40R19

 

Karoq 4WD tyre sizes

225/60R16

225/55R17

225/50R18

225/45R19

 

So I’m assuming a 225/50 R18 will fit just fine using the full-size spare kit?

[Mark-Surrey]

Hi everybody. I haven’t been on this forum for a very long time. I made the original post.  I’m glad to see it has been useful for some of you!  I see there were questions about whether I bought the kit for 2WD or 4WD. I thought I had bought the kit for 2WD. In any case, my car definitely is a 2WD version. I checked the invoice from when I bought the kit, and it shows the part number as 57A093860A. The description on the Skoda invoice just says “SPARE WHEEL”, which isn’t particularly helpful, or even accurate! I also found a photo which I had taken of the label on the box, and it shows the same part number. See photo attached.

 

I can’t remember now how exactly I came across that part number in the first place. It might have been somewhere on this forum or another forum, or maybe I got it from the Skoda garage. But in any case, this kit worked fine for me.  I think I had read somewhere that it wasn’t possible to have a full-sized spare wheel in the 4WD version, because there’s some element of the 4WD system somewhere in the cavity underneath the spare wheel area which causes the spare wheel to sit higher in the 4WD version compared to the 2WD version.

 

Our tyres are 215/50/R18, and the alloy wheel which I bought from eBay is identical to the one which came with the car. The alloy was quite cheap on eBay. But actually even buying it brand new from Skoda would have been quite a reasonable price. I think the Skoda garage quoted me about £180 for the alloy wheel at that time, but I had got fed of waiting for them to answer, and by the time they did answer I had already found one on eBay. If I was doing it again, I’d probably get a brand new alloy from Skoda, just for peace of mind. I also got an identical tyre, rather than a cheap one. My thinking was that if I got a puncture in the middle of nowhere when I’m a long way from home on holiday in France, I’d want to be able to switch the wheel and just continue driving as normal, for as long and as far as I wanted, rather than worrying that I had one wheel or one tyre which was completely different to the others. The boot floor sits nice and flat in my car, with this kit and this tyre size.

 

 It’s more than 3 years since I bought this kit and installed it, so it’s possible that some things may have changed. Our car was new in June 2019.

 

Good luck to you all!

[Carlston]

3 hours ago, blankwrong said:

So I’m assuming a 225/50 R18 will fit just fine using the full-size spare kit?

 

If you have a Karoq 4WD rather than a Karoq 2WD, you might find that there's less height for the spare wheel in the spare wheel well due to the extra space that the Karoq 4WD needs for its four wheel drive system. This point needs confirming by someone with a Karoq 4WD, but if there is less height a full size wheel might not fit so you might be limited to a 125/70R18 space saver although it might be better to the 125/70R18 for a 135/80R18 so that the outside of the space saver tyre is close to the outside diameter of the full size tyres on the Karoq 4WD.

 

Outside diameter of Karoq 4WD tyres

225/60R16 676.4mm

225/55R17 679.3mm

225/50R18 682.2mm

225/45R19 685.1mm

 

Outside diameter of two space saver tyres

125/70R18 632.2mm (7.1% smaller than the average Karoq 4WD tyre size)

135/80R18 673.2mm (1.1% smaller than the average Karoq 4WD tyre size))

 

The average outside diameter of the four standard Karoq 4WD tyres (225/60R16, 225/55R17, 225/50R18, 225/45R19) is 680.75mm, ie. (676.4+679.3+682.2+685.1)/4 = 680.75mm. Therefore, 125/70R18 has an outside diameter about 7.1% smaller than the average Karoq 4WD tyre size, and 135/80R18 has an outside diameter about 1.1% smaller than the average Karoq 4WD tyre size, ie. the 135/80R18 space saver tyre is a much better match to full-size Karoq 4WD tyre sizes than 125/70R18.

 

As you can see from the chart below, both 125/70R18 and 135/80R18 can be fitted to the 3.5Jx18 ET25.5 5/112 57.1 steel space saver rim. 3.5 is highlighted in bold because that is the standard rim width for both these tyre sizes. Camskill are listing both the 125/70R18 and 135/80R18 space saver tyres.

 

ETRTO approved rim widths

125/70R18 3.0-3.5-4.0
135/80R18 3.5-3.5-4.5

 

125/70R18 space saver tyres listed on camskill

https://www.camskill.co.uk/m129b0s5432p0/Temporary_Spare_Tyres_-_Space_Saver_Tyres_-_18_inch_R18_inch_-_125_70_18_125_70R18

 

135/80R18 space saver tyres listed on camskill

https://www.camskill.co.uk/m129b0s7672p0/Temporary_Spare_Tyres_-_Space_Saver_Tyres_-_18_inch_R18_inch_-_135_80_18_135_80R18_R18_inch_-_135_18_135R18

 

125/70R18 space saver tyre fitted to a 3.5Jx18 ET25.5 5/112 57.1 steel space saver rim 5E3601011B

https://eshop.skoda-auto.cz/cs_CZ/kompletni-rezervni-kolo-18/p/5E3601011B

 

Edited 24 January, 2023 by Carlston

[Peter Mc]

Karoq SEL 1.5 TSI 2WD 18" Brag?/Miran? 30th Dec 2022

 Mark-Surrey certainly started something here!.

The tyre on my 125/70 R18 tyre sits exactly flush with the boot floor.

A 215 full size tyre is going to sit 90mm +/- higher in my car.

The new boot floor in Mark's 560A kit has spacers under each corner that look to be about 1cm.

Maybe the well in the 2019 Karoq was deeper than the 2022 facelift.

On a favourable day I shall follow Carlston's advice and try one of my road wheels in the spare wheel space.

In the meantime I asked what would be involved at my dealership.

This is their breakdown:

Spare wheel set £102.99

Cover required for kit installation £64.74

Full size alloy wheel £570.60

Mid-range tyre  £141.32               

Fitting cost for mounting tyre and fitting spare wheel kit £33.00

Total Cost £912.65inc

 

The price of a new rim was a bit of a surprise.(So was the quoted labour cost!)

I've no idea what the £64.74 item is but it is shown as a required item 575 863 459A 9B9 on the 560A kit data sheet. (Which I do not seem able to insert here.)

 

The parts superviser says he is not 100% certain this kit would do the job and adds that the wheel is shown as "back order".

It would be interesting to see how the 560 2WD kit differs from the 560A 4wd kit.

 

I shall bide my time until I have tried a full size test but I suspect thr height differece will be too much for my purposes.

 

 

 

 

[Rgsmg53]

This is a really useful thread for a new 4x4 Karoq owner like me. Thanks to all.

 

My recent purchase is a low mileage used Karoq 4x4 Sportline manufactured March 2022 - so it's pre-facelift. I can confirm that the spare wheel recess in the floor pan is much shallower than 4 x2 Karoqs - sorry, can't give a precise dimension or photo as my wife's currently out in it but I estimate about 15mm. I'm told the reason is to accommodate the Haldex unit underneath.

 

The vehicle was supplied with no spare wheel and just a mini compressor and can of sealant. Like others, I want to install a space-saver but not a full size wheel as it simply takes up too much useful boot space. The dealer has confirmed that a kit is available for my vehicle (he's quoting £280 including wheel, jack, packing etc) but I'm still waiting for him to confirm the size of the space-saver is compatible with the 19 inch road wheels fitted.

 

A big thank you to Carlston for his tyre size calculations which I had already done for the 19 inch wheels but I hadn't done for the space-saver options. I had been worrying that with all the electronics fitted to the vehicle that it would throw a hissy fit if the space-saver was too far different in rolling diameter to the standard road wheels. In fact, a quick check with a tape measure earlier today showed the rolling diameter of the road wheels closer to 675 mm than the (correct) calculated figure. This was measured across the horizontal diameter of an almost new tyre with 7mm tread depth. This surprised me as I had expected the horizontal diameter to be slightly large than the vertical due to the vehicle's weight compressing the lower part of the tyre. Am I missing something here?

 

Having said this, it seems that I won't go far wrong if I purchase Skoda Pt No 57A093860A and a space-saver with a 135/80R18 tyre. Have I got that correct?

 

 

[Carlston]

2 hours ago, Rgsmg53 said:

This is a really useful thread for a new 4x4 Karoq owner like me. Thanks to all.

 

My recent purchase is a low mileage used Karoq 4x4 Sportline manufactured March 2022 - so it's pre-facelift. I can confirm that the spare wheel recess in the floor pan is much shallower than 4 x2 Karoqs - sorry, can't give a precise dimension or photo as my wife's currently out in it but I estimate about 15mm. I'm told the reason is to accommodate the Haldex unit underneath.

 

The vehicle was supplied with no spare wheel and just a mini compressor and can of sealant. Like others, I want to install a space-saver but not a full size wheel as it simply takes up too much useful boot space. The dealer has confirmed that a kit is available for my vehicle (he's quoting £280 including wheel, jack, packing etc) but I'm still waiting for him to confirm the size of the space-saver is compatible with the 19 inch road wheels fitted.

 

A big thank you to Carlston for his tyre size calculations which I had already done for the 19 inch wheels but I hadn't done for the space-saver options. I had been worrying that with all the electronics fitted to the vehicle that it would throw a hissy fit if the space-saver was too far different in rolling diameter to the standard road wheels. In fact, a quick check with a tape measure earlier today showed the rolling diameter of the road wheels closer to 675 mm than the (correct) calculated figure. This was measured across the horizontal diameter of an almost new tyre with 7mm tread depth. This surprised me as I had expected the horizontal diameter to be slightly large than the vertical due to the vehicle's weight compressing the lower part of the tyre. Am I missing something here?

 

Having said this, it seems that I won't go far wrong if I purchase Skoda Pt No 57A093860A and a space-saver with a 135/80R18 tyre. Have I got that correct?

 

You measure the outside diameter of the tyre when it's inflated and off the car, ie. without the weight of the vehicle on the tyre.

 

It's more accurate to put a tape measure around the inflated tyre when its off the vehicle to measure the outside circumference, and then divide by 3.142 to calculate the diameter from the circumference, ie. diameter = circumference / 3.142

 

Even if your 225/45R19 tyre turns out to be about 675mm rather than the calculated 685.1mm, 675mm is actually even closer to the outside diameter of the 135/80R18 space saver tyre so it wouldn't be a problem at all.

 

A Skoda dealer will only be able to advise you to fit a 125/70R18 space saver and not a 135/80R18. That's because 125/70R18 is the only space saver size that Skoda recommends for the Karoq.

 

The 125/70R18 was originally from the Octavia MK3 but has be repurposed for other cars such as the Karoq and Superb MK3 and now the Octavia MK4, even those all three of these cars use significantly larger outside diameter tyres compared to the Octavia MK3.

 

If the space for the 125/70R18 tyre is a close fit, then it's possible that there wouldn't be enough space for the 135/80R18 tyre. A 135/80R18 tyre fitted to a 3.5J rim is about 6mm wider than a 125/70R18 tyre fitted to a 3.5J rim. A 135/80R18 tyre has an outside diameter about 41mm more than the smaller 125/70R18 size, ie. 20.5mm larger radius.

 

Edited 24 January, 2023 by Carlston

[Rgsmg53]

This is brilliant. Thank you Carlston.

 

I had thought of measuring the circumference to eliminate any load effects / tyre elasticity but a) it's b****y cold here and b) I didn't fancy poking around to find the jacking pads.

 

It'll be very interesting to see what my dealer comes back with (if the Service Dept ever bother to reply) but thanks to your info I'm forearmed!

 

At the risk of thread drift, I'm wondering what the advantage of fitting 19 inch rims and low profiles tyres is compared to say 18 inch rims with slightly higher profile. I can see why on a performance car but not on an SUV (even if, as Skoda themselves claim, it is not a proper SUV!). My one compalint so far is the tyre noise which I suspect is mostly down to the low profiles although I am hoping it will improve once the tyres scrub-in a bit - only 500 miles run so far.

 

[Peter Mc]

My apologies for quoting abreviated - and incorrect - kit numbers in my comments earlier.

 

here is the "...860A" Data Sheet I failed to insert before.

[blankwrong]

On 23/01/2023 at 23:49, Carlston said:

 

If you have a Karoq 4WD rather than a Karoq 2WD, you might find that there's less height for the spare wheel in the spare wheel well due to the extra space that the Karoq 4WD needs for its four wheel drive system. This point needs confirming by someone with a Karoq 4WD, but if there is less height a full size wheel might not fit so you might be limited to a 125/70R18 space saver although it might be better to the 125/70R18 for a 135/80R18 so that the outside of the space saver tyre is close to the outside diameter of the full size tyres on the Karoq 4WD.

 

Outside diameter of Karoq 4WD tyres

225/60R16 676.4mm

225/55R17 679.3mm

225/50R18 682.2mm

225/45R19 685.1mm

 

Outside diameter of two space saver tyres

125/70R18 632.2mm (7.1% smaller than the average Karoq 4WD tyre size)

135/80R18 673.2mm (1.1% smaller than the average Karoq 4WD tyre size))

 

The average outside diameter of the four standard Karoq 4WD tyres (225/60R16, 225/55R17, 225/50R18, 225/45R19) is 680.75mm, ie. (676.4+679.3+682.2+685.1)/4 = 680.75mm. Therefore, 125/70R18 has an outside diameter about 7.1% smaller than the average Karoq 4WD tyre size, and 135/80R18 has an outside diameter about 1.1% smaller than the average Karoq 4WD tyre size, ie. the 135/80R18 space saver tyre is a much better match to full-size Karoq 4WD tyre sizes than 125/70R18.

 

As you can see from the chart below, both 125/70R18 and 135/80R18 can be fitted to the 3.5Jx18 ET25.5 5/112 57.1 steel space saver rim. 3.5 is highlighted in bold because that is the standard rim width for both these tyre sizes. Camskill are listing both the 125/70R18 and 135/80R18 space saver tyres.

 

ETRTO approved rim widths

125/70R18 3.0-3.5-4.0
135/80R18 3.5-3.5-4.5

 

125/70R18 space saver tyres listed on camskill

https://www.camskill.co.uk/m129b0s5432p0/Temporary_Spare_Tyres_-_Space_Saver_Tyres_-_18_inch_R18_inch_-_125_70_18_125_70R18

 

135/80R18 space saver tyres listed on camskill

https://www.camskill.co.uk/m129b0s7672p0/Temporary_Spare_Tyres_-_Space_Saver_Tyres_-_18_inch_R18_inch_-_135_80_18_135_80R18_R18_inch_-_135_18_135R18

 

125/70R18 space saver tyre fitted to a 3.5Jx18 ET25.5 5/112 57.1 steel space saver rim 5E3601011B

/cdn-cgi/mirage/7ef2a44b785400d29a8fd15a0e4d5fffe2d9913bfac72229cb253167b445d29b/1280/https://eshop.skoda-auto.cz/medias/5E3601011B-PIC.jpg?context=bWFzdGVyfHJvb3R8MzYyOTV8aW1hZ2UvanBlZ3xoODEvaGZhLzg4NTc1MDk5ODYzMzQvNUUzNjAxMDExQi1QSUMuanBnfGQzYzEzMDlkZWY5ZjY2MzdmMjg3YTg2ZDg1Zjk4NTU5MGMyOWRjZjJiOWUxMmJiYmFiNDQwNWU4NmVhMjY3ZGY

https://eshop.skoda-auto.cz/cs_CZ/kompletni-rezervni-kolo-18/p/5E3601011B

 

I have a 2WD but I’m certain the tyres Skoda put on mine are 225/50 R18’s… so what I’m saying is will they fit ok with the full-size spare wheel kit?

[Rgsmg53]

I've just picked up a space-saver kit for my Karoq 4x4 from Fish Brothers Swindon (skodapartsdirect.co.uk). It's not listed on their website because the wheel is too heavy to ship economically and the packing kit too big (due to larger boot floor panel). I collected mine on the way to visit relations so I'll post a photo and dimensions when I get home next week.

 

The packing takes 5 minutes to fit and there is plenty of clearance for the 125/70R18 wheel supplied.

 

Parts numbers (for 4 x 4) are: S5E3601011B for wheel and S57A093860A for packing, jack etc. I was charged £250 inc VAT which I did not think was too bad and was £30 cheaper than my local dealer.

[Mark-Surrey]

I’ve added some photos below to show how the boot floor level rises up with the kit for a full-sized spare wheel. It’s not just the wheel itself which supports the boot floor. The polystyrene inserts are higher for the full-sized spare, and the boot floor rests on a plastic ledge which is about 4.5cm higher than the plastic ledge for the space-saver floor

[Rgsmg53]

As promised, here are some pics of the space-saver wheel kit as installed in my 4 x 4. Interesting contrast to Mark-Surrey's pics with a full size spare - ie about same boot floor height.

 

There's plenty of room for the space-saver supplied. As the third photo shows, a max wheel diamter of 685 mm could be accommodated.

 

Hope this is of use to someone. The previous posts were a great help to me. 

[Carlston]

2 hours ago, Rgsmg53 said:

As promised, here are some pics of the space-saver wheel kit as installed in my 4 x 4. Interesting contrast to Mark-Surrey's pics with a full size spare - ie about same boot floor height.

 

There's plenty of room for the space-saver supplied. As the third photo shows, a max wheel diamter of 685 mm could be accommodated.

 

Hope this is of use to someone. The previous posts were a great help to me.

 

From the photos, it looks like there's enough room to change the 125/70R18 space saver tyre to a 135/80R18 space saver tyre on the 3.5Jx18 ET25.5 5/112 57.1 steel space saver rim.

 

This would bring the outside diameter of the space saver tyre to closely match the outside diameter of the standard Karoq 4WD tyres, such as 225/60R16, 225/55R17, 225/50R18, 225/45R19, etc.

 

135/80R18 space saver tyre

https://www.camskill.co.uk/m129b0s7672p0/Temporary_Spare_Tyres_-_Space_Saver_Tyres_-_18_inch_R18_inch_-_135_80_18_135_80R18_R18_inch_-_135_18_135R18

 

As you can see in the ETRTO chart below, a 3.5J rim width is ideal for both the 125/70R18 and 135/80R18 space saver tyres.

 

ETRTO approved rim widths

125/70 3.0-3.5-4.0
135/80 3.5-3.5-4.5

 

You might expect a 135/80R18 tyre to be 10mm wider than a 125/70R18, but when they are both fitted to a 3.5J rim, the 135/80R18 is only about 7mm wider than the 125/70R18.

 

Edited 1 February, 2023 by Carlston

[Zanskar]

An update on progress on my 2wd Karoq. I bought the polystyrene foam insert and tools kit and installed them without problem -see photos before and after. I then removed one of the road wheels to see if it would fit in the wheel well in the boot - it didn't as the diameter is greater than the space available.

 

The other important thing, for me, is that the 17" wheel and tyre is very heavy. I am not a big burly bloke and I struggled to lift it into the boot for the size test. It was even worse when refitting the wheel and it took me ages to get it in exactly the right position for the bolts to bite. It would be a total nightmare to change a wheel by the roadside in daylight, let alone at night.....

 

This is leading to me thinking that the best option would be to buy a space-saver tyre and wheel as a) it would fit in the boot well properly and b) should be a bit easier to change a wheel if the need ever arises. I just need to know the correct size - is it 125/70 D17 ?

 

Any other thoughts before I go any further?

 

Thanks for all the help so far.

[Carlston]

4 hours ago, Zanskar said:

An update on progress on my 2wd Karoq. I bought the polystyrene foam insert and tools kit and installed them without problem -see photos before and after. I then removed one of the road wheels to see if it would fit in the wheel well in the boot - it didn't as the diameter is greater than the space available.

 

The other important thing, for me, is that the 17" wheel and tyre is very heavy. I am not a big burly bloke and I struggled to lift it into the boot for the size test. It was even worse when refitting the wheel and it took me ages to get it in exactly the right position for the bolts to bite. It would be a total nightmare to change a wheel by the roadside in daylight, let alone at night.....

 

This is leading to me thinking that the best option would be to buy a space-saver tyre and wheel as a) it would fit in the boot well properly and b) should be a bit easier to change a wheel if the need ever arises. I just need to know the correct size - is it 125/70 D17 ?

 

Any other thoughts before I go any further?

 

It's a 125/70R18 or some people write 125/70/18

 

To find a 125/70R18 space saver tyre fitted to a 3.5Jx18 ET25.5 5/112 57.1 steel space saver rim online, you can use the 1K0601027AP OEM part number from the Karoq (although its also used on other cars such as Golf MK7, etc.) to search online (such as ebay) for much cheaper than new Skoda dealer prices. Often around £60. Many unused, old ones, some with signs of poor handling and storage, etc. are listed on ebay.

 

Make sure they have 125/70R18 tyres and not other sizes such as 125/60R18 which would be far too small. Also, many are listed incorrectly, as some are 16" even though you search for the correct OEM part number. Make sure they have a 5/112 and not 5/100, although if you confirm the OEM part number it won't be 5/100.

 

3.5Jx18 ET25.5 5/112 57.1 steel space saver rim 1K0601027AP

https://www.ebay.co.uk/itm/144920367979

 

With the 2WD Karoq, the 125/70R18 space saver is fine. The 135/80R18 probably won't fit inside the Karoq 2WD foam, although it should fit inside the Karoq 4WD foam. The Karoq 4WD foam will fit a Karoq 2WD as well as a Karoq 4WD.

 

It's really only the 4WD Karoq that might be better off with the bigger 135/80R18 mainly due to its 4 wheel drive system. This is because it's probably not such a good idea to use a much smaller outside diameter tyre on one of the tyres.

 

Where are you going to put your full size wheel if you get a puncture, as you said it won't fit inside the Karoq 2WD foam?

 

This kind of tool should help you fit your road wheel. Make sure you start the first couple of threads by hand, so that you don't risk cross threading, just like you would with your wheel bolts.

 

M14x1.5 wheel alignment tool

https://www.ebay.co.uk/itm/334368450159

 

Edited 2 February, 2023 by Carlston

[Rgsmg53]

This is a brilliant find! In all my years of owning cars, I've never seen this simple tool before.

[MydogSally]

Hi everyone who has been watching ,contributing to this thread.

 

Just completed my conversion, you may be interested in my findings.

 

Initially I found Mark Surrey's post on a different forum in Oct22

So as our vehicle wasn't being delivered until January 23, I thought I'd source parts in advance. Car is a 1.5 petrol DSG SE L 18" wheels

 

I found a new unwanted, new, unused kit on ebay 57A 093 860A.  According to manual supplied this is intended for a 4x4 with fixed seats (NOT VARIO)

Fitted the kit last week without any issues, apart from trimming the polystyrene end piece as detailed by Mark Surrey. (Thanks Mark)

Fitted a full size alloy wheel sourced on ebay   (came from an Audi Q2)    all dimensions the same as Karoq.  Different look but hopefully we'll never need to see it again.  (We holiday in Spain twice a year, and I didn't fancy being stuck halfway through France.)

 

The wheel fitted exactly to the circumference and level  of the foam inserts.

 

The only outstanding issue is that the boot floor support is approx 100mm too short to support the floor.  I assume that is because the floor of the 4x4 is 100mm higher than the 2WD ?

I have sleeved the support with a piece of plastic downpipe, which works fine, until I can source the correct part.

 

The 2 items for the support are 3G0 803 899 B  (the threaded centre  bolt  with locking nut)  It is approx 100mm long overall, and needs to be approx 200mm

 

and 3G5 863 470  (the support pad)  Hopefully This can be retained if I can locate a suitable centre bolt.    Lots of variations available in the VAG range of cars, so it may need a trip to a local breaker.

 

If anyone knows of a suitable item please let me know 

 

Cheers

 

 

 

 

 

 

 

 

 

[Zanskar]

Many thanks once again Carlston for your invaluable advice.

 

I have tracked down a suitable space-saver wheel/tyre (125/70R18 5x112) on ebay and it should arrive next week. I have also ordered one of those wheel alignment guide tools - I have never come across such a thing before and it is just what I need - every car should have one!

 

Regarding where to put a full size wheel in the event of a puncture, our car is rarely used with more than two people in it so I would just put it in the boot. I always carry a strong plastic groundsheet in the car so would wrap it in that to keep the boot clean.

 

I will provide a further update after installation of the space-saver.

[Mark-Surrey]

I did indeed make a similar post on a different forum, just to try and share the knowledge.  I’m also putting a link here to somebody else’s post on Briskoda, as I think it was this post which prompted me to go ahead and give this a try. As you can see from the post by oldaaman on 31st July 2020, he confirmed that the part number of the kit which I used was indeed normally intended for putting a skinny spare in a 4WD model, which apparently doesn’t have a wheel well due to that space being required for the Haldex hardware. But as the 2WD model does have a wheel well, the depth of that wheel well plus a skinny spare equates closely to the height of a full size spare wheel in a 2WD. Because this kit was officially only meant for a skinny wheel, the tubular support piece in the centre of the wheel isn’t tall enough for a full size wheel. As you can see from the other post, some people have experimented by extending it with additional tubing. In my car, I just filled that wheel cavity with lots of junk, which provides some additional support to the boot floor.

[Zanskar]

Project update - now complete.

 

In addition to the spacesaver wheel & tyre, I also bought a plastic tray off eBay (described as "tailored heavy duty boot floor liner mat") to provide a hidden compartment. It is arranged as follows: wheel well covered by the loose double-sided rigid mat that came with the car, then the plastic tray and finally the original boot floor - see photos. Given that the plastic tray is not very strong, I may need to put some blocks of wood in it whenever we carry something really heavy in the boot - suitcases etc.

 

It's a pity that the Karoq doesn't come with a variable boot floor as standard as retrofitting appears to be expensive judging by the Kamiq thread on the subject.

 

Many thanks to all who contributed to this Karoq thread and I hope that it proves useful to others.