Carlston

The outside diameter of 205/55R16 is far too big for the Fabia MK2. The gearing will be too high, it is likely to rub, and the speedo will under-read. Outside diameter of tyre 205/45R16 590.9mm 205/55R16 631.9mm (6.9% bigger outside diameter compared to 205/45R16)

On the Scala, the outside diameters of the standard tyre sizes ranges from 631.9mm to 641.7mm. The centre point of these two numbers is 636.8mm. The outside diameter of 215/40R18 is 1.2% smaller than the 636.8mm centre point. Additionally, the outside diameter of 215/40R18 is 0.4% smaller than the standard tyre size with the smallest outside diameter. The outside diameter of 215/45R18 is 2.2% bigger than the 636.8mm centre point. Additionally, the outside diameter of 215/45R18 is 1.4% bigger than the standard tyre size with the biggest outside diameter. Therefore, perhaps look at 215/40R18 instead of 215/45R18 as an alternative to the standard 205/45R18. Although 215/45R18 appears to be a more common tyre size than 205/45R18, 215/40R18 appears to be an even more common tyre size than 215/45R18. Below, I've linked to example all season tyres (they are not recommendations) in both the 215/40R18 and 215/45R18 tyre sizes. Outside diameter of tyres (for Scala) 215/40R18 629.2mm (non-standard tyre size) (1.2% smaller than the 636.8mm centre point) 205/55R16 631.9mm 195/65R15 634.5mm (winter tyre size) 205/50R17 636.8mm 195/60R16 640.4mm (winter tyre size) 205/45R18 641.7mm 215/45R18 650.7mm (non-standard tyre size) (2.2% bigger than the 636.8mm centre point) Michelin CrossClimate 2 215/40R18 89V XL (Euro label C B 71dB) https://www.camskill.co.uk/m141b0s12095p208570/Michelin_Tyres_All_Season_Car_Michelin_Cross_Climate_2_215_40_R18_89V_XL_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_B_NoiseClass%3A_B_Noise%3A_71dB Continental AllSeasonContact 2 215/45R18 93V XL (Euro label B B 71dB) https://www.camskill.co.uk/m141b0s9060p227699/Continental_Tyres_All_Season_Car_Continental_Conti_All_Season_Contact_2_215_45_R18_93V_XL_FR_TL_Fuel_Eff_%3A_B_Wet_Grip%3A_B_NoiseClass%3A_B_Noise%3A_71dB

ETRTO approved rim widths for passenger car tyres 225/35 7.5-8.0-9.0 235/35 8.0-8.5-9.5 235/40 8.0-8.5-9.5 245/35 8.0-8.5-9.5 Actual inflated width of tyre (measured from sidewall to sidewall, at the widest point) 225/35 fitted to 7.5" rim 224mm 235/35 fitted to 7.5" rim 229mm (not an ETRTO approved rim width for this tyre size) 235/40 fitted to 7.5" rim 229mm (not an ETRTO approved rim width for this tyre size) 245/35 fitted to 8" rim 242mm 245/35 fitted to 8.5" rim 248mm

£4.87 is almost twice the price of the other seller on ebay who can supply all the build codes. 3 Euros (about £2.53) for all the build codes (search "skoda vin decoder" on ebay to find the listing) https://www.ebay.co.uk/itm/226517872578

On the Superb MK2, there are both 345x30mm and 340x30mm front brakes depending on the car's build code. Build code 1LK is 345x30mm, and build code 1LA is 340x30mm. Build code 1LK and build code 1LA use different front brake calipers, as well as different front brake discs. The brake calipers on the Superb MK2 with 340x30mm front brakes are the same as the brake calipers on the Superb MK3 with 340x30mm front brakes. However, many aftermarket brands sell different front brake pads for these two cars. There's one model of Brembo, one model of Delphi, one model of Febi, one model of Ferodo, one model of Hella, one model of Jurid, two models of Optimal, one model of Ridex, and two models of Valeo listed for both 3C0698151G (Superb MK2) and 8V0698151C (Superb MK3), and I expect there are other examples you could find. So the same aftermarket brake pads are sometimes sold for both cars. OEM part numbers for front brake pads on 340x30mm front brake discs (Superb MK2) 3C0698151G 3C0698151L 3C0698151N OEM part numbers for front brake pads on 340x30mm front brake discs (Superb MK3) 5Q0698151AJ 5Q0698151K 8V0698151C

As you can see in the chart below, the Touran 2.0TDI 140HP uses bigger front brake discs than the Yeti 2.0TDI 140HP. All the 288x25mm and 312x25mm front brakes shown below use the same ATE front brake calipers. So if you want to upgrade the Yeti 288x25mm front brakes to 312x25mm you just need to fit the front brake caliper carriers from the 312x25mm to the 288x25mm...and change to the bigger 312x25mm front brake discs. The front brake caliper carriers on these ATE brakes are not handed, ie. the left and right are the same. They are available new from autodoc (and presumably other places)...and maybe from VAG dealers. The OEM part number for these on the Yeti is 1K0615125C or 5N0615125, depending on the car's build date...and 3C0615125A for the Touran. However, all three of these OEM part numbers leads to the same ATE brake carrier...as linked to below. Front brake disc size Yeti 2.0TDI 110HP 280x22mm Yeti 2.0TDI 140HP 288x25mm Yeti 2.0TDI 170HP 312x25mm VW Touran 2.0TDI 140HP 312x25mm ATE 11.0230-0131.1 front brake caliper carrier (for 312x25mm front brake disc) https://www.autodoc.co.uk/ate/13765568

Use the size of front brake discs that the car left the factory with, unless you want to modify the car. If the Octavia MK4 has front wheel drive and not more than 110kW/150PS, it probaby has the 288x25mm front brake discs. However, it's always best to check the car's build codes to be sure. The Skoda parts catalogue lists 288x25mm, 306x26mm, 312x25mm, and 340x30mm front brakes discs for the Octavia MK4. In a 2021 ADAC brake test, the Brembos had by far the worst wear out of the six brands that were tested. The other brands were ATE, VW, Bosch, Zimmermann, Ridex. ATE won the test. ATE brakes https://www.ate-brakes.com/products/disc-brakes/ate-ceramic-brake-pads/#:~:text=ATE%20Ceramic%20%E2%80%93%20winner%20of%20the%20ADAC%20test&text=Ten%20years%20have%20passed%2C%20but,brands%2C%20including%20one%20OE%20product.

ADAC did a group brake pad test in 2021. The group comprised ATE, VW, Brembo, Zimmerman, Bosch, and Ridex, ATE brake pads came top for wear. Brembo brake pads came bottom for wear. Zimmerman brake pads came top for braking distance, ATE brake pads came second for braking distance. VW, Bosch and Brembo brake pads came joint third for braking distance. Ridex came bottom for braking distance. ATE Ceramic brake pads won the test. ADAC group brake pad test 2021 https://www.adac.de/rund-ums-fahrzeug/reparatur-pflege-wartung/wartung-inspektion/bremsscheiben-bremsbelaege/ Extract about the Brembo brake pads and brake discs from the ADAC group test 2021 The Xtra Line brake components with perforated discs from the Italian luxury brand Brembo impress with their highest braking performance under realistic conditions on the brake test bench . However, under stress, the Brembo brakes even fall below the friction values of the VW brakes: The temperature-related decrease in friction behavior, also known as fading, leads to a point deduction. Furthermore, disc and pad wear are many times higher than with the other products. An expensive and short-lived experience: After just 2.2 millimeters of thickness shrinkage, the permissible disc thickness is exceeded.

Someone with the 1.5TSI 150HP said they had the 276x24mm front brake discs. Even the 110HP/116HP Scalas are likely to have the 276x24mm front brake discs, with the 256x22mm front brake discs being reserved for the Scalas with 95HP or less. However, it's always best to check the car's build codes as those will tell you for sure what the car left the factory with.

According to "skoda eshop cz" the OEM part number for the foam and jack kit for the Octavia MK4 is 5E3093860B. So by quoting 5E3093860B, you should be able to order this from any VAG parts department. The foam and jack kit includes everything, except for the actual spare wheel. Price on the Czech website is about £53.85, so it's not expensive. Foam and jack kit for Octavia MK4 5E3093860B https://eshop.skoda-auto.cz/cs_CZ/sada-pro-vymenu-rezervniho-kola-18/p/5E3093860B The 125/70R18 3.5Jx18 ET25.5 5/112 57.1 space saver wheel is expensive new, but they are regularly listed on ebay secondhand from about £40. However, it might be worth seeing if a full size wheel such as 205/60R16 6.5Jx16 ET46 5/112 57.1 fits, before going down the skinny space saver route. Perhaps try one of the wheels that are currently on the car, to see whether that fits. If you have a 225 such as 225/45R18, and it doesn't fit, perhaps try letting all the air out...as if the tyre had a puncture. If a 225 fits with all the air let out, an inflated 205 might fit.

It looks like you have a 5Jx14 ET35 5/100 57.1 specification steel rim, which was fitted to the Fabia MK1/MK2/MK3, Roomster, and Rapid. On the Fabia MK1/MK2 a 165/70R14 tyre size was fitted to this rim specification. On the Fabia MK3, Roomster, and Rapid a 175/70R14 tyre size was fitted to this rim specification. One aftermarket steel rim in this specification is the Alcar 5210, which is available from mytyres for about £40 including shipping to the UK from Germany. Google "alcar 5210 mytyres" to find this listing...or you could search for steel rims for the Fabia MK1/MK2/MK3, Roomster, or Rapid on their website. Alcar steel rims are made in Switzerland, so as you would expect are OE quality and are an exact match including appearance to the original Skoda steel rim. However, I've noticed in the past that mytyres will often send out an alternative OE quality steel rim to Alcar. So although mytyres say they will send out an Alcar steel rim, what they actually send out might be different. Perhaps a genuine VAG steel rim or perhaps a German made steel rim, etc. So although not always Alcar usually a good quality alternative...at least from my experience.

The Skoda parts catalogue shows all the OEM part numbers for the 1KS build code https://www.lllparts.co.uk/catalogs/skoda/CZ/OCT/753/6/615/615062 1 5Q0615423B Brake caliper housing left 1 PR:1KS 1 5Q0615424B Brake caliper housing right 1 PR:1KS 7 1K0615601AA Brake disc 272x10mm 5/112 2 10 5Q0698451B 1 set of brake pads for disk brake D >> - 02.11.2014 rear 1 PR:1KS 10 8U0698451F 1 set of brake pads for disk brake D >> - 02.11.2014 rear 1 10 7N0698451A 1 set of brake pads for disk brake D >> - 02.11.2014 rear 1 10 7N0698451C 1 set of brake pads for disk brake also use: rear 1 10 5Q0698451F 1 set of brake pads for disk brake D - 03.11.2014>> - 03.11.2016 rear 1 PR:1KS 10 5Q0698451L 1 set of brake pads for disk brake D - 03.11.2016>> rear 1 PR:1KS The 1KS build code has TRW rear brake calipers. TRW GDB2042 rear brake pads would fit. TRW GDB2042 rear brake pads 1KS https://www.amazon.de/-/en/Genuine-TRW-Brake-Pads-GDB2042/dp/B0156DVFMW/ref=sr_1_2 ATE rear brake discs 24.0110-0356.1 is one option https://www.autodoc.co.uk/ate/7008517#brake-disc

Changing from the standard 215/55R17 to 215/65R17 is far too big an increase. The speedo will under-read, there might be rubbing especially the front on full-lock, and the gearing will be too high...especially first gear for pulling away and top gear. If you want a better ride, first make sure you've chosen tyres will soft and flexible sidewaalls such as good all-season tyres...and that the tyres aren't over-specified...so something like 215/55R17 94V rather than 215/55R17 98W XL. Choosing W-speed rating if you only need V-speed rating and XL (eXtra Load) rather than SL (Standard Load) will make the sidewalls stiffer and therefore the ride harder. Choosing a narrower 6.5" rim width for the 215/55R17 will also make the ride softer compared to fitting this tyre size to a wider rim such as 7" or 7.5". Perhaps look at 215/60R17 fitted to a 6.5" rim width, or 215/65R16 fitted to a 6.5J rim width. One benefit, is that these two tyre sizes tend to be a bit cheaper than 215/55R17.

Compared to a 245/45R18 fitted to an 8" wide rim, a 225/50R18 fitted to a 7" wide rim would give far more protection from kerbing damage because the tyre's sidewalls bulge out about twice as much...as shown in the chart below. Amount tyre sidewalls bulge out each side from rim 245/45 fitted to 8" wide rim 7.9mm 225/50 fitted to 7" wide rim 15.6mm The reason that the difference is so big, is because the actual width of a 245/45 fitted to an 8" rim width is 243mm, and the actual width of a 225/50 fitted to a 7" rim width is 233mm, ie. the 245/45 is only 10mm wider not 20mm wider...which you might expect. See the chart below. What is happening, it that the sidewalls on tyres with an aspect ratio less than 50 don't tend to bulge out much, but once you get to tyres with an aspect ratio of at least 50 the tyre's sidewalls tend to bulge out a lot more. Hence, if you want good rim protection from kerbing damage choose tyres with an aspect ratio of at least 50 and fit them to relatively narrow rims or at least a rim that isn't wider than normal for that particular tyre size. Actual width of inflated tyre measured from sidewall to sidewall at the widest point 245/45 fitted to 8" rim width 243mm 225/50 fitted to 7" rim width 233mm As you can see in the ETRTO chart below, a 7" rim width is the standard rim width for a 225/50 tyre and an 8" rim width is the standard rim width for a 245/45 tyre...hence both 7.0 and 8.0 are highlighted. ETRTO approved rim widths for passenger car tyres 225/50 6.0-7.0-8.0 245/45 7.5-8.0-9.0

The below foam and jack kit for the Fabia MK3 includes everything, except for the actual spare wheel...which you can purchase separately. Thjs kit normally uses the standard Fabia MK3 15" wheel which is 185/60R15 fitted to a 6Jx15 ET38 5/100 57.1 rim...normally steel if it's a spare wheel. The foam and jack kit can be ordered from any VAG parts department by quoting OEM part number 6V0093860B. The Czech price is about £49, but the UK price can be slightly more...perhaps up to 20% more or so. 6V0093860B https://eshop.skoda-auto.cz Google "alcar 7760 mytyres.co.uk" to find a listing on mytyres for an Alcar 7760 6Jx15 ET38 5/100 57.1 steel rim. Currently priced at £43.47 including shipping to the UK from Germany. This is an aftermarket steel rim that exactly matches the original Skoda steel rim. Alcar are made in Switzerland, so as you would expect are OE quality. This steel rim can be ordered from mytyres with a fitted tyre of your choice. One option is a Continental UltraContact 185/60R15 84H.

The Octavia MK3 Scout is an estate with four wheel drive, independent rear suspension, increased ride height, and bigger wheels. 2017 Octavia MK3 Scout 4x4 https://en.wikipedia.org/wiki/%C5%A0koda_Octavia

All Skoda 4x4's have multi-link/independent rear suspension. The Octavia MK4 1.4 petrol 150kW/204PS is front wheel drive and that has multi-link/independent rear suspension...so it's not just reserved for the 4x4 and the VRS.

gknautomotive list 6Q0511115M rear springs for the standard ride height Fabia MK2 1.2TDI estate with towbar, so that should be quite firm on a hatchback. Kilen 63110 (matches 6Q0511115M) autodoc.co.uk/kilen/7837570 https://www.ebay.co.uk/itm/204000988331?

Just to add to the above and give some other possible tyre and steel rim sizes for the Yeti (mostly non-standard): Some possible AT (All-Terrain) tyres 205/70R15 (15" rims fit all Yeti models, except 170HP versions due to the big 312x25mm front brake discs) https://www.camskill.co.uk/m53b0s2481p148166/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_205_70_R15_96H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_70dB 215/60R16 (standard Yeti tyre size) https://www.camskill.co.uk/m62b0s111p164244/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_215_60_R16_95H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_71dB 215/65R16 (might rub) https://www.camskill.co.uk/m62b0s426p148189/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_215_65_R16_98H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_70dB 235/60R16 (might rub) https://www.camskill.co.uk/m62b0s425p148190/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_235_60_R16_100H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_72dB 215/60R17 (might rub) https://www.camskill.co.uk/m54b0s3735p164247/Yokohama_Tyres_Car_Yokohama_Geolandar_AT_G015_215_60_R17_96H_RPB_TL_Fuel_Eff_%3A_E_Wet_Grip%3A_C_NoiseClass%3A_B_Noise%3A_71dB Alcar 7755 6Jx15 ET43 5/112 57.1 steel rim (from Octavia MK3) (6.80kg) https://www.mytyres.co.uk/rims/details?vehicleId=502374009556452464&rimCode=ALCAR7755 Alcar 6665 6Jx16 ET43 5/112 57.1 steel rim (from Karoq) (7.60kg) https://www.mytyres.co.uk/rims/details?vehicleId=1284041564754023536&rimCode=ALCAR6665 Alcar 9922 6.5Jx16 ET33 5/112 57.1 steel rim (from Tiguan MK1) (8.20kg) https://www.mytyres.co.uk/rims/details?vehicleId=67955865910514800&rimCode=ALCAR9922 Alcar 9187 6.5Jx16 ET43 5/112 57.1 steel rim (from Audi A3) (7.62kg) https://www.mytyres.co.uk/rims/details?vehicleId=1275188297127171184&rimCode=ALCAR9187 Alcar 9257 7Jx16 ET45 5/112 57.1 steel rim (from Yeti) (9.35kg) https://www.mytyres.co.uk/rims/details?vehicleId=185941160152274032&rimCode=ALCAR9257 Alcar 9021 6.5Jx17 ET38 5/112 57.1 steel rim (from Kodiaq MK1) (11.58kg) https://www.mytyres.co.uk/rims/details?vehicleId=639488607098246256&rimCode=ALCAR9021 Out of the above, my preference for off-roading would be the 15" option...and look how much weight you would save compared to the 17" option. The above 15" rims weigh about 6.80kg each compared to the 17" rims which weigh about 11.58kg each. So that's a weight saving of 19.12kg for 4 rims or 23.9kg for 5 rims, ie. carrying a space. Note that the Yokohama Geolandar AT G015 tyres have only been used in the links above to shown that All-Terrain tyres are available in those sizes. It's not a recommendation.

Kilen lists 6Q0511115AG rear springs for the Fabia MK2 1.2TDI Greenline hatchback, which are standard ride height springs. According to the Skoda parts catalogue these are colour coded Orange Yellow Yellow Blue, as shown in the chart below. Maybe the yellow dots have faded on your old springs, and now look white...hence perhaps the coloured dots are really Orange Yellow Yellow Blue and not Orange White White Blue? If a Fabia MK2 has build code 1JA, then the car has standard ride height. If a Fabia MK2 has build codes 1JA and 0YA, then the car has 6Q0511115AG rear springs...which are standard ride height rear springs. Fabia MK2 standard ride height rear spring (1JA = standard ride height) 6Q0511115AG 1 paint mark 2 paint marks 1 paint mark orange yellow blue 1JA+0YA

Orange White White Blue isn't listed in the Skoda parts catalogue. However, Orange Blue Blue White is listed. Do you have a hatchback or estate? The Kilen online spring catalogue lists 6Q0511115AF for the Fabia MK2 1.2TDI Greenline estate. 6Q0511115AF is marked Orange Blue Blue White. Sometimes Skoda give springs more than one colour marking code...so it's possible Orange White White Blue is an alternative to Orange Blue Blue Whjite. There are only four lowered ride height rear springs listed in the Skoda parts catalogue, as shown in the chart below. Notice that 6Q0511115AF is the second spring in the hierarchy. The stiffest spring in the hierarchy below is 6Q0511115AB and doesn't appear to be available as an aftermarket spring, ie. it isn't listed on autodoc. However, the other three springs are available aftermarket. So if you want an aftermarket spring stiffer than 6Q0511115AF, then 6Q0511115AA is the only choice. Fabia MK2 lowered ride height rear springs 6Q0511115BB 6Q0511115AF (Wire diameter 10.25mm, Length 303mm, Number of coil turns 7.8) 6Q0511115AA (Wire diameter 10.5mm, Length 305mm, Number of coil turns 7.8) 6Q0511115AB Aftermarket springs that match 6Q0511115AF Kilen 63527 Lesjofors 4282927 https://www.ebay.co.uk/itm/192915683784? https://www.autodoc.co.uk/car-parts/oem/6q0511115af Aftermarket springs that are sold to replace 6Q0511115AA Kilen 63123 Lesjofors 4285724 https://www.ebay.co.uk/itm/390973848325? Kilen and Lesjofors are the same spring, made in the same factory in Sweden. They are the biggest aftermarket manufacturer of car springs in Europe. In the UK, Kilen tends to be cheaper and more widely available than Lesjofors.

In the Skoda parts catalogue, Skoda have clearly listed all these ten springs in their natural hierarchy. In order for your simple arithmetic to work, you need to relabel the 0YE and 0YK springs 4th and 6th springs. Then 6-4=2, ie. two up in the hierarchy. My comments are about explaining the hierarchy, not recommending any particular spring in the hierarchy. It's worth noting that the Octavia MK2 uses six of these springs that the Superb MK2 uses, as shown in the chart below. Notice that on the Octavia MK2 Skoda have given each of these six springs two weight ranges. Which weight range is relevant for each car depends on when the car was manufactured. Notice that the Superb MK2 weight range 10 spring is either a weight range 9 or a weight range 11 spring on the Octavia MK2. Also notice, that the Superb MK2 weight range 5 spring is either a weight range 7 or a weight range 9 spring on the Octavia MK2. Conclusion...the 1K0511115BL spring is two up in the hierarchy compared to the 1K0511115DE spring on both the Superb MK2 and the Octavia MK2. Superb MK2 rear springs 1K0511115BF 0YB 1K0511115BG 0YC 1K0511115BH 0YD 1K0511115DE 0YE 1K0511115DF 0YF 1K0511115BL 0YK Octavia MK2 rear springs 1K0511115BF 0YD 0YF 1K0511115BG 0YE 0YG 1K0511115BH 0YF 0YH 1K0511115DE 0YG 0YJ 1K0511115DF 0YH 0YK 1K0511115BL 0YJ 0YL

If you want to go stiffer than the weight range 5 rear spring, then weight range 6 is one up in the hierarchy, weight range 10 is two up in the hierarchy, weight range 7 is three up in the hierarchy, weight range 8 is four up in the hierarchy, weight range 9 is five up in the hierarchy, and weight range 14 is six up in the hierarchy...as shown in the chart below. The below wire diameters and spring lengths should only be considered approximate because different brands will often have slightly different ideas of what the specification of individual springs should be. However, the numbers given do illustrate the hierarchy of the springs. VW Codes Decoder 0YB = Weight range 2 0YC = Weight range 3 0YD = Weight range 4 0YE = Weight range 5 0YF = Weight range 6 0YK = Weight range 10 0YG = Weight range 7 0YH = Weight range 8 0YJ = Weight range 9 0YP = Weight range 14 Superb MK2 rear springs 1JA = standard ride height 1K0511115BF 0YB Wire diameter 11.75mm Length 354mm 1K0511115BG 0YC Wire diameter 11.75mm Length 360mm 1K0511115BH 0YD Wire diameter 12mm Length 364mm 1K0511115DE 0YE Wire diameter 12.25mm Length 362mm 1K0511115DF 0YF Wire diameter 12.5mm Length 359mm 1K0511115BL 0YK Wire diameter 12.5mm Length 365mm 3C0511115AF 0YG Wire diameter 12.75mm Length 358mm 3C0511115AG 0YH Wire diameter 12.75mm Length 362mm 3C0511115AH 0YJ Wire diameter 13mm Length 364mm 3C0511115AJ 0YP Wire diameter 13.25mm Length 358mm

Superb MK2 Estate https://en.wikipedia.org/wiki/%C5%A0koda_Superb

1 white dot, 3 orange dots, and 1 brown dot means that it's 1K0511115DE which is what gknautomotive list in their spring catalogue for the Superb MK2 2.0TDI 170HP front wheel drive estate, so it's likely to be the model of spring that was fitted in the factory. Kilen 65056 matches 1K0511115DE https://www.ebay.co.uk/itm/204000988707 1K0511115DE springs listed on autodoc https://www.autodoc.co.uk/car-parts/oem/1k0511115de?supplier%5B%5D=246&supplier%5B%5D=253&supplier%5B%5D=32