Hello, I'm the owner of 2015 Octavia III 1.8tsi 180HP(currently 360HP)4x4, this is non RS version. I would like to fit RS springs to it (I don't want eibach pro kit, to low), could anyone help which springs I should buy? I would like the lowest for RS there was.

Attached photos are of mine, very high sitting Skoda and a guy that owns an RS on OEM springs, that seems perfect for me.

Happy Easter.

@Carlston might be the one with all the numbers.

Rs are only 20mm lower. You need the option code for rs sports suspension or just call a dealer and ask to look the part up and order.

There is a colour sequence on the springs to identify.

In the workshop manual it records the height from centre of wheel to wheel arch for various suspension options. I didn't think eibach is much lower though...

Those other wheels are 19s by the way, which should be similar overall rolling circumfrance but may look slightly different even on their own.

These details are extracted from the Kilen online spring catalogue.

Do you have electronically controlled shock absorbers?

Have you got a manual or automatic DSG gearbox? This makes a difference to the front springs because the automatic gearbox is heavier than the manual gearbox so the front springs are normally slightly stiffer to compensate for this.

Do you want the lowered springs to be the same stiffness as the standard springs, about 5% stiffer, or about 10% stiffer. If you often fully load the car or don't mind a harder ride you will probably want 10% stiffer springs. However, if you normally don't carry much weight in the car and want to keep the ride comfort of the standard ride height springs it's possible to fit lowered ride height springs that have about the same stiffness as the standard ride height springs. For example, the lowered ride height springs on the Superb MK3 are about the same stiffness as the standard ride height springs.

It could be useful if you could find out what the OEM part numbers are for the front and rear springs, ie. what the car left the factory with. It looks to me like Kilen has made a mistake with your car, as they are listing 5Q0511115G rear springs, which they also list for the front wheel drive car. This can't be right because the 4x4 uses stiffer rear springs than the equivalent front wheel drive car because of the extra weight over the rear axle of the 4x4 system.

Octavia MK3 hatchback 1.8TSI 180PS front wheel drive DSG

Front springs (standard ride height) 5Q0411105GL

Front springs (lowered ride height) 5Q0411105HC

Rear springs (standard ride height) 5Q0511115E

Rear springs (lowered ride height) 5Q0511115Q

Octavia MK3 hatchback 2.0TDI 184PS front wheel drive manual gearbox

Front springs (lowered ride height) 5Q0411105HD

Rear springs (lowered ride height) 5Q0511115Q

Octavia MK3 hatchback 2.0TDI 184PS front wheel drive DSG

Front springs (lowered ride height) 5Q0411105HF

Rear springs (lowered ride height) 5Q0511115Q

Octavia MK3 hatchback 2.0TDI 184PS 4x4 DSG

Front springs (lowered ride height) 5Q0411105HF

Rear springs (lowered ride height) 5Q0511115S

Octavia MK3 estate 1.8TSI 180PS front wheel drive DSG

Front springs (standard ride height) 5Q0411105GL

Rear springs (standard ride height) 5Q0511115G

Octavia MK3 estate 1.8TSI 180PS 4x4 DSG

Front springs (standard ride height) 5Q0411105GL

Rear springs (standard ride height) 5Q0511115G (Kilen might have made a mistake with this spring because it should be stiffer than the equivalent front wheel drive car)

Octavia MK3 estate 2.0TDI 184PS 4x4 DSG

Front springs (lowered ride height) 5Q0411105HF

Rear springs (lowered ride height) 5Q0511115AA

Edited 20 April, 20251 yr by Carlston

These lowered ride height springs should be suitable for the Octavia MK3 1.8TSI 180PS estate 4x4 DSG. They should be similar to what Skoda would have fitted if the car had left the factory with lowered ride height springs.

Remember to change the front buffers if changing from standard ride height springs to lowered ride height springs. 55mm buffers with OEM part number 1K0412303F should fit if you don't have electronically adjustable shock absorbers. The standard ride height front springs use buffers that have a length of about 70mm, so changing to these 55mm buffers will provide an extra 15mm of front suspension travel compared to using the old 70mm buffers.

Lowered ride height front springs 5Q0411105HD

Bilstein 37-293192

Kilen 23133 (same as Lesjofors 4085734)

Lesjofors 4085734 (same as Kilen 23133)

https://www.autodoc.co.uk/car-parts/oem/5q0411105hd?supplier%5B%5D=246&supplier%5B%5D=85&supplier%5B%5D=253&supplier%5B%5D=16

Lowered ride height rear springs 5Q0511115AA

Bilstein 36-301904

Kilen 63145 (same as Lesjofors 4285746)

Lesjofors 4285746 (same as Kilen 63145)

https://www.autodoc.co.uk/car-parts/oem/5q0511115aa?supplier%5B%5D=246&supplier%5B%5D=16&supplier%5B%5D=253&supplier%5B%5D=85

55mm buffers for front shock absorbers 1K0412303F (not for electronically adjustable shock absorbers)

https://www.autodoc.co.uk/car-parts/oem/1k0412303f?supplier%5B%5D=10249

Edited 20 April, 20251 yr by Carlston

Omg guys, thank you all for such comprehensive replies, you're awesome, happy Easter ❤️🐇

I regards to my car, unfortunately despite being pretty maxed our version it doesn't have DCC which I would love to install, but nobody in my area seems to have knowledge how to do it. I have mode button, but no DCC.

Full specs are

1.8TSI CJSB

DSG DQ250

4x4 haldex 5gen

I just checked diameter of shocks 55mm

Also adding kg for axels

10% stiffer sounds great 👍

P. S.

Such springs would suit better with Bilstein B6 or B8 or maybe some other recommendation?

Edited 20 April, 20251 yr by Rogal

15 minutes ago, Rogal said:

10% stiffer sounds great.

Such springs would suit better with Bilstein B6 or B8 or maybe some other recommendation?

Bilstein B6 are for standard ride height springs.

Bilstein B8 are for lowered ride height springs.

So go for Bilstein B8 with the lowered ride height springs, unless you are planning to change back to standard ride height springs at some point in the future.

You won't need the 55mm buffers with the Bilstein B6/B8 because the buffers are built into these high quality shock absorbers.

Bilstein B6/B8 without DCC have a superior mono-tube design, whereas Bilstein B6 with DCC have an inferior twin-tube design. So that's a big advantage in not having DCC.

Edited 20 April, 20251 yr by Carlston

Thanks again for reply!

I found some photos of my current suspension when I was changing wheels.

46 minutes ago, Rogal said:

I found some photos of my current suspension when I was changing wheels.

One blue dot and one brown dot is 5Q0411105GL, so Kilen got it right in their online spring catalogue.

Edited 20 April, 20251 yr by Carlston

Thanks a lot, ok to sum up, as I'm still a bit unsure when comparing my ride height vs RS the 20mm mentioned below will be enough? I think it's more like 25-30mm?

"Rs are only 20mm lower. You need the option code for rs sports suspension or just call a dealer and ask to look the part up and order."

So I guess this RS Sport version would go an additional 10mm lower?

I can understand that those 2 will be 20mm lower from current?

Lowered ride height front springs 5Q0411105HD (Octavia MK3 hatchback 2.0TDI 184PS front wheel drive manual gearbox) - is it ok to get this from FWD? Also 100 years ago diesel engines were a bit heavier from petrol ones?

Bilstein 37-293192

Kilen 23133 (same as Lesjofors 4085734)

KYB RA4126

Lesjofors 4085734 (same as Kilen 23133)

https://www.autodoc.co.uk/car-parts/oem/5q0411105hd?supplier%5B%5D=246&supplier%5B%5D=85&supplier%5B%5D=253&supplier%5B%5D=16

Lowered ride height rear springs 5Q0511115AA (Octavia MK3 estate 2.0TDI 184PS 4x4 DSG)

Bilstein 36-301904

Kilen 63145 (same as Lesjofors 4285746)

KYB RA5885

Lesjofors 4285746 (same as Kilen 63145)

https://www.autodoc.co.uk/car-parts/oem/5q0511115aa?supplier%5B%5D=246&supplier%5B%5D=16&supplier%5B%5D=253&supplier%5B%5D=85

Maybe this will help someone, Bilestin B8 Schock numbers would be

Bilstein B8 Sport shock absorber Code: 35-229919 55mm (different for 50mm)
Bilstein B8 Sport shock absorber Code: 24-229937 - here the diameter isn't important if I got it right.

With green, I marked the setup that seems ok as a replacement for my stock suspension for RS one.

Edited 20 April, 20251 yr by Rogal

Ok, me stupido EDIT:

KYB seems to be the best in showing spring length, there is also autodoc

So the front would go lower about 40mm and back only 25mm?

Are the lengths of current springs on a screenshot from KYB ok?

KYB 278mm/346 mm

Autodoc is showing

Eibech pro kit

front axle - 253 or 254mm

rear axle - 296mm

EIBACH Sportline

from axle - 255mm

rear axle - 281mm

Edited 20 April, 20251 yr by Rogal

Sorry for talking to myself, but my edit option disappeared...

So, for me perfect would be to go 30-35mm lower on back and front, but it seems non-existent?

Octavia MK3 hatchback 1.8TSI 180PS front wheel drive DSG

Front springs (standard ride height) 5Q0411105GL - 314mm

Front springs (lowered ride height) 5Q0411105HC – 288mm

Rear springs (standard ride height) 5Q0511115E – 365mm

Rear springs (lowered ride height) 5Q0511115Q – 335mm

Octavia MK3 hatchback 2.0TDI 184PS front wheel drive manual gearbox

Front springs (lowered ride height) 5Q0411105HD – 278mm

Rear springs (lowered ride height) 5Q0511115Q – 332-335mm

Octavia MK3 hatchback 2.0TDI 184PS front wheel drive DSG

Front springs (lowered ride height) 5Q0411105HF - 281-285mm

Rear springs (lowered ride height) 5Q0511115Q – 332-335mm

Octavia MK3 hatchback 2.0TDI 184PS 4x4 DSG

Front springs (lowered ride height) 5Q0411105HF – 285mm

Rear springs (lowered ride height) 5Q0511115S – 340mm

Octavia MK3 estate 1.8TSI 180PS front wheel drive DSG

Front springs (standard ride height) 5Q0411105GL – 314-317mm

Rear springs (standard ride height) 5Q0511115G – 370mm

Octavia MK3 estate 1.8TSI 180PS 4x4 DSG

Front springs (standard ride height) 5Q0411105GL - 314-317mm

Rear springs (standard ride height) 5Q0511115G – 370mm

Octavia MK3 estate 2.0TDI 184PS 4x4 DSG

Front springs (lowered ride height) 5Q0411105HF 281-285mm

Rear springs (lowered ride height) 5Q0511115AA – 346mm

Ahhh, when I press edit it says can't find that topic...

So I think there is a perfect solution for me, but would springs from 2.0 TDI RS 4x4 fit to my car?

KYB K-Flex RA4127 - front axle - 285mm

EIBACH R16554 - rear axle - 335mm

48 minutes ago, Rogal said:

So I think there is a perfect solution for me, but would springs from 2.0 TDI RS 4x4 fit to my car?

KYB K-Flex RA4127 - front axle - 285mm

EIBACH R16554 - rear axle - 335mm

Kilen lists the Octavia MK3 2.0TDI 4x4 with automatic DSG gearbox as having 5Q0411105HF front springs. 5Q0411105HD are softer than 5Q0411105HF.

The alternaive to 5Q0411105HD is 5Q0411105HC, but that spring is softer than 5Q0411105GL.

Eibach R16554 are about 10% softer than your current standard ride height rear springs, which I suspect are 5Q0511115H.

The actual lengths of springs will often turn out to be slightly different from what the manufacturer claims. I once purchased two springs with the same OEM part number but they weren't from the same production batch, and I noticed that their lengths were about 10mm different. Fortunately, the parts guy gave me an immediate refund and he ordered in a pair of springs that were from the same batch.

Bear in mind that stiffer springs compress less (and softer springs compress more) under the weight of the car, so that too affects the unladen ride height...not just the uncompressed lengths of the springs.

Edited 21 April, 20251 yr by Carlston

Oh man, thank you so much for all the replies again, so I'm getting pretty sure regarding the front spring, as it seems to be stiffer than my current and with perfect ride hight(as per screenshot from KYB) Also RA4127 is a replacement for 5Q0411105DJ, 5Q0411105DK, 5Q0411105HE, 5Q0411105HF

For the rear I think you're right, Eibech would be softer as diameter is 11,5mm vs 11,8mm, and it's pretty weird for me that they list most FWD cars for it and only one 4x4

EIBACH R16554 cars:

• 2.0 TDI / TDI RS 4x4, Year of manufacture 05.2013 - 10.2020, 1968 ccm, 184 HP

• 2.0 TDI RS, Year of manufacture 05.2013 - ..., 1968 ccm, 184 HP

• 2.0 TSI RS, Year of manufacture 11.2012 - ..., 1984 ccm, 220 HP

• 2.0 TSI RS, Year of manufacture 05.2015 - ..., 1984 ccm, 230 HP

• 2.0 TSI RS, Year of manufacture 02.2017 - ..., 1984 ccm, 245 HP

So am I getting it right for the front? And regardless all above, will they both fit in my car? KYB K-Flex RA4127 and EIBACH R16554?

I think currently my ride height from the wheel is

from around 50-60mm

rear 60-70mm

So even with softer spring in the rear I would still be happy with EIBACH R16554 I think, if it fits.

still can't edit, so sorry for replying to myself.

I found yet one another, but last spring that would also give around 30mm lowered suspension vs standard and it seems to be the same stiffness as the current spring

https://www.autodoc.co.uk/eibach/18259209

If you don't want to go with my first suggestion, ie. 5Q0411105HD front springs and 5Q0511115AA rear springs...perhaps try 5Q0411105HC front springs and 5Q0511115S rear springs. Compared to the 5Q0411105HD front springs and 5Q0511115AA rear springs, they probably would drop the ride height a little more.

Eibach R19200 front springs (sold to replace 5 springs including 5Q0411105HC, so might not be an exact match...although specification seems ok)

https://www.autodoc.co.uk/eibach/17876013

Eibach R19953 rear springs (sold to replace 5Q0511115S and no other springs, so should be an exact match)

https://www.autodoc.co.uk/eibach/18259209?search=EIBACH+Coil+spring+%28R19953%29

Edited 21 April, 20251 yr by Carlston

It's not like I don't want to, but my perfect lowering spring should do ca. -30mm front and ca. -35mm rear :)

and as Eibachs R19200 should do exactly that on the front and that's great

for the rear I would just prefer EIBACH R16554 better :)

https://www.autodoc.co.uk/eibach/18259202?search=EIBACH+Coil+spring+%28R16554%29

They seem to be the same replacement as R19200 "sold to replace 5 springs including 5Q0411105HC"

Edited 21 April, 20251 yr by Rogal

1 hour ago, Rogal said:

...and as Eibachs R19200 should do exactly that on the front and that's great

for the rear I would just prefer EIBACH R16554 better...

Eibach R16554 is sold to replace 5Q0511115Q and 5Q0511115R, so probably matches 5Q0511115R. 5Q0511115R is just one down in the hierarchy compared to 5Q0511115S (eg. Eibach R19953).

A lot could depend on how much weight you carry over the rear axle. If the Eibach R16554 did prove to be too soft, then the Eibach R16554 could be changed to the Eibach R19953.

Whatever you fit, it's worth taking careful measurements of the new front and rear springs before fitting them. Then if the front or back proves to be too high or too low, this information should help find suitable alternative springs. Measurements I would want are the uncompressed length, the coil spring diameter, and the number of coil turns...maybe even the weight in kilograms.

Edited 21 April, 20251 yr by Carlston

Ok, many thanks, Carlston and all, for all the replies

To sum up everything :)

I think the best is to compare to most beloved by most people Eibech Pro Kit, that lands in most MQB cars when someone wants to go lower, but it's too low for me, as my wife will also use car and overall it's an estate not a Formula 1, I want normal driveability

Length [mm] / Wire Diameter [mm] (more = stiffer?)

Standard Ride height of non-RS Octavia seems to be:

Front axle - 314-317mm / 12mm

Rear axle - 367-370mm / 11,5-11,8mm

EIBACH Pro-Kit (should lower non-RS around ~60mm and RS ~30-40mm)

Front axle two options - 253mm/11,5mm or 254mm/11,8mm

Rear axle - 296mm/13,5mm

What's weird about pro-kit is the wire diameter of the front axle(checked on a few pages), they left it the same or a bit stiffer than standard... and none of the other rear spring seems to be as hard as those on pro-kit.

Other options if, like me, you're looking for something in between, so ~-30mm from standard ride height, please remember that I'm looking for 4x4 fitting springs, which gives fewer options on the back, I suppose + DSG giving less on the front also.

Fron Axle

Eibach R19200 - 287mm/11,5mm

Eibach R19488 - 272mm / 12,3mm

KYB RA4127 - 285mm / 12,5mm - this still looks best as a replacement for the front axle

KYB RA4126 - 278 mm / 12,2mm

Rear Axle

Eibach R19953 - 342mm/11,8mm

Eibach R16554 - 335mm/11,5mm

KYB RA5885 - 346mm / 12mm

Regarding shocks:

Bilestin B8 Schock numbers would be

Bilstein B8 Sport shock absorber Code: 35-229919 55mm (different for 50mm)
Bilstein B8 Sport shock absorber Code: 24-229937 - here the diameter isn't important if I got it right.

Also, I'm not a professional or mechanic, so I can't assure that all the above parts will fit.

Edited 21 April, 20251 yr by Rogal

If changing the rear springs from standard ride height to lowered ride height, you will also probably want to change the rear shock absorber buffers from 127mm to 112mm. This will provide an extra 15mm of suspension travel compared to if you don't change them.

With the non-DCC car, it looks like 5Q0511357J would be suitable...although do confirm this with the person who is going to fit the Bilstein B6/B8 rear shock absorbers.

112mm rear shock absorber buffers 5Q0511357J (for lowered rear springs, non-DCC)

https://www.autodoc.co.uk/car-parts/oem/5q0511357j?supplier%5B%5D=101

Edited 23 April, 20251 yr by Carlston

Hey Carlston, thanks a lot, I also found this topic where many additional information is provided https://www.briskoda.net/forums/topic/515079-help-with-vrs-fl-estate-rear-spring-rates-after-retrofits-please/

Thanks to the photo of red Octavia I'm convinced for the Eibach R19953 - 342mm/11,8mm in the rear :) Though I know that he has 19" probably

In regards to ordering everything as I just spend some $$$ on adding few ponys, I will probably order the suspension in parts this and next month, so beside above I additionally need:

112mm rear shock absorber buffers 5Q0511357J https://www.autodoc.co.uk/car-parts/oem/5q0511357j?supplier%5B%5D=101

Upper underlay for rear spring 5Q0512149A https://www.autodoc.co.uk/topran/16203018

Lower underlay for rear spring 5Q0512297D https://www.autodoc.co.uk/topran/16203019

SACHS 803 024 Repair kit, suspension strut https://www.autodoc.co.uk/sachs/7883824?search=SACHS+Repair+kit%2C+suspension+strut+%28803+024%29

anything else? :)

Edited 23 April, 20251 yr by Rogal