Hi, I have been trawling the forum for info as my 2017 Superb has one snapped front spring and one snapped rear spring so I am faced with changing them all. I have determined that the standard springs are

5Q0 411 105 GM  (Blue, Grey paint dots) for the fronts

3Q0 511 115 AL For the rears

 

I think it would look great a little lower but don't want to go as far as 30mm+ with lowering springs.

Could I just get the sport suspension springs for a subtle drop on standard shocks (that wont be being replaced) or are the sport suspension shocks shorter also from the factory?

 

If it is not a sensible option to fit the sport springs and I just go for replacements, are there any brands to avoid?

 

For example, the options here range from £22 per spring to £52 per spring. https://www.autodoc.co.uk/spares-search?keyword=5Q0+411+105+GM+

 

I was going to go with standard KYB springs as there is a great deal on ebay where they are 15% off and I also get a further 10% cashback. I have since read some horror stories about the brand based around corrosion and the springs being higher than standard which would be a disaster!

 

Should I pay a bit more and go for Kilen?

 

Thanks for any input, i've done my best to search previous threads but can't find anything specific to my particular spring codes and there are lots of threads about lowering sportline cars when the sportline height would be a perfect upgrade for me anyway.

 

 

 

15 hours ago, james111333 said:

I have since read some horror stories about KYB based around corrosion and the springs being higher than standard which would be a disaster!

 

I know someone who has in recent years fitted KYB springs almost exclusively to about 10 different cars. The cars have often done high mileage, yet without any problems...no corrosion, no breakages, and no incorrect ride height. Considering that the Scala is fitted with KYB shock absorbers out of the factory by Skoda, and is one of the biggest suppliers of car springs and car shock absorbers in the world, I regard KYB as a premium brand. KYB claim to be number four or five in the world. KYB claim to make their aftermarket springs and aftermarket shock absorbers at least as good as the ones they sell to car manufacturers for fitment to new cars.

 

The incorrect ride height problem will usually be people selecting the wrong springs. Many KYB springs (like most other aftermarket spring brands) are sold to replace more than one OEM part number, so these springs are often not a like for like replacement, but will often be longer and/or stiffer than the springs they are replacing. To avoid this problem, you need to look at the full list of springs that an aftermarket spring is being sold to replace. For example, KYB RA5331 rear springs are sold to replace just 3Q0511115AL and no other OEM part number, so should be an exact match

 

Sometimes I've seen a KYB spring that gives a specification that is at odds with the specification given by another premium brand, such as Sachs. This might be a 0.5mm thinner or thicker wire diameter. I would probably avoid this particular KYB spring. Aftermarket spring brands do often make mistakes in the specifications that they give, so sometimes it might be that the specification they've given is incorrect rather than the aftermarket spring not matching the factory spring that it's being sold to replace. However, I did hear of one car owner who fitted KYB springs that were shown in the specification (and therefore should have been avoided) as having a wire diameter 0.5mm thicker than it should be...and the ride height did end up a little on the high side.

 

There are lots of counterfeit springs being sold, so maybe the very rusty KYB spring was a fake. Why would KYB's very modern factories produce springs that weren't well protected against rust? Cheap Chinese springs will often rust, so maybe that "KYB" spring was actually a Chinese counterfeit. It's well known that China are the counterfeit capital of the world.

 

I've got a small preference for Kilen/Lesjofors springs over KYB because Kilen/Lesjofors are made in Sweden and are Europe's biggest manufacturer of aftermarket car springs. However, the final choice will often depend on how well I think the aftermarket springs will match the OEM springs. It's nice to see that KYB often (but not always) list the specification of their springs but Kilen/Lesjofors never do.

 

Whatever springs you purchase, make sure you take and record full measurements before fitting...such as weight, length, wire diameter, outside diameter, number of coil turns, and a photo. Then if you notice any problems after fitting such as incorrect ride height, and/or too soft or too stiff, you can investigate further with the knowledge of those measurements. It's also important to find out before fitting a replacement spring that it actually matches the specification that you think it should be. Sellers often get parts returned by buyers, and things can get put back in the wrong box. The easiest measurement to make is weight (if you have digital kitchen scales). I was once sent a spring that weighed more than twice what it should have...and of cause, it was the wrong spring.

 

You should be able to use sports/lowered ride height springs with the standard shock absorbers, because not only are they about the same stiffness...but they are only about 15mm shorter (based on unladen ride height). Eibach even state that their lowered ride height springs can be used with the standard ride height shock absorbers...and those springs will give a bigger drop in ride height than the Skoda sports/lowered ride height springs.

 

One problem with fitting lowered ride height springs, such as a 15mm drop, is that you may need to increase the stiffness of the springs to prevent bottoming out. This of course makes the ride harder, but because the standard ride height car is known to ride quite softly many owners will still find the ride acceptable. One way to bring the ride comfort back is to fit tyres with bigger sidewalls. So if you've got the hardest riding 235/40R19, then changing to 215/55R17 would make quite a difference. Here's an example of an all-season 215/55R17 tyre.

 

Continental AllSeasonContact 2 215/55R17 94V (Euro label B B 70dB)

https://www.camskill.co.uk/m140b0s8825p220589/Continental_Tyres_All_Season_Car_Continental_Conti_All_Season_Contact_2_215_55_R17_94V_TL_Fuel_Eff_%3A_B_Wet_Grip%3A_B_NoiseClass%3A_B_Noise%3A_70dB

 

Edited 26 March, 20242 yr by Carlston

When changing from standard ride height springs to sports/lowered ride height springs you need to change the 70mm front buffer to a 55mm, and the 127mm rear buffer to a 112mm.

 

When considering the length of replacement springs, remember that the stiffer the spring the less it will compress under the weight of the car. For example, if you changed the below 

3Q0511115AA rear spring to 3Q0511115AD you might expect the rear ride height to drop by 9mm by just comparing the uncompressed lengths, but when you take into account the increased stiffness of the spring the rear ride height might actually increase by about 3mm.

 

Standard ride height front spring

5Q0411105GM Length 315mm, Wire diameter 12.25mm

 

Sports/lowered ride height front springs

5Q0411105HE Length 278mm, Wire diameter 12.25mm

https://www.autodoc.co.uk/eibach/17876011

5Q0411105HF Length 282mm, Wire diameter 12.5mm

https://www.autodoc.co.uk/eibach/17876012

5Q0411105HG Length 287mm, Wire diameter 12.75mm

https://www.autodoc.co.uk/eibach/17875999

 

Standard ride height rear spring

3Q0511115AL Length 359mm, Wire diameter 12.5mm

 

Sports/lowered ride height rear springs

3Q0511115AA Length 324mm, Wire diameter 12.75mm

https://www.autodoc.co.uk/eibach/18112509

3Q0511115AB Length 330mm, Wire diameter 13mm

https://www.autodoc.co.uk/eibach/18112504

3Q0511115AC Length 320mm, Wire diameter 13.5mm

https://www.autodoc.co.uk/eibach/16620565

3Q0511115AD Length 315mm, Wire diameter 13.75mm

https://www.autodoc.co.uk/eibach/18112510

 

55mm front buffer 1K0412303F (for use with sports/lowered ride height springs)

https://www.autodoc.co.uk/topran/2725191#rubber-buffer-suspension

 

112mm rear buffer 5Q0511357J (for use with sports/lowered ride height springs)

https://www.autodoc.co.uk/topran/8878002#rubber-buffer-suspension

 

Edited 26 March, 20242 yr by Carlston

Hello, i read this topic and watching this (5Q0411105HG Dolžina 287 mm, Premer žice 12,75 mm)

On catalog put me this spring use arteon and audi q..

Are you sure for this information or?

Edited 22 July, 202522 Jul by Sladan

The Superb MK3 came out of the factory with many different springs, depending on things such as the weight of the engine, whether the car was a hatchback or estate, and whether the car was front wheel drive or 4x4, etc.

Edited 22 July, 202522 Jul by Carlston

This number is for front springs. I have hatchback 2.0 190ps, FWD..i like too stiff 😁

what happened if i mount next type springs,

front 5Q0411105HG

rear 3Q0511115AB

i have hatchback, fwd 2.0tdi 190ps.

3 hours ago, Sladan said:

I have hatchback, fwd 2.0tdi 190ps.

If the Superb MK3 2.0TDI 190PS FWD hatchback has standard ride height, gknautomotive suggests the car has 5Q0411105GM standard ride height front springs and 3Q0511115AJ or 3Q0511115AK standard ride height rear springs.

What springs did the car leave the factory with?

Build code L07 means the car has 5Q0411105GM standard ride height front springs

https://www.lllparts.co.uk/catalogs/skoda/CZ/SUP/851/4/411/411000

Build codes 1JA+0YB means the car has 3Q0511115AJ standard ride height rear springs

Build codes 1JA+0YC means the car has 3Q0511115AK standard ride height rear springs

https://www.lllparts.co.uk/catalogs/skoda/CZ/SUP/851/5/511/511000

Edited 23 July, 202523 Jul by Carlston

yes, but i want little bit lowered and stiff.

Can you confirm maybe, are these springs suitable for my Superb?

front 5Q0411105HG

rear 3Q0511115AB

Thanks for information🤝

Interesting point last year on KYB @Carlston - I recently read that Seat and Skoda have Monroe DCC (leaktastic) shocks whereas Audi and VW DCC are made by KYB (or technically it said KYB/ZF). They clearly were able to make something better for the budget they were given. I would have thought if someone wanted to keep stock suspension that they could probably go for KYB replacements rather than Monroe, given its all MQB interchangeable (it must be seeing as aftermarket suspension parts share part numbers across VAG).

55 minutes ago, Sladan said:

Can you confirm maybe, are these springs suitable for my Superb?

front 5Q0411105HG

rear 3Q0511115AB

Without knowing what springs your Superb MK3 left the factory with, there's nothing to compare those lowered ride height springs against.

Compared to 5Q0411105HE, the 5Q0411105HG might raise the front unladen ride height by about 12mm. If you use a 5Q0411105HG front and 3Q0511115AB rear combination, the front end might look high.

Standard ride height front springs (for Superb MK3) (specifications according to gknautomotive)

5Q0411105GM Length 315mm, Wire diameter 12.25mm

5Q0411105GN Length 318mm, Wire diameter 12.5mm

Standard ride height rear springs (for Superb MK3) (specifications according to gknautomotive)

3Q0511115AJ Length 361mm, Wire diameter 11.75mm

3Q0511115AK Length 364mm, Wire diameter 12.25mm

3Q0511115AL Length 359mm, Wire diameter 12.5mm

Lowered ride height front spring (for Superb MK3) (specification according to gknautomotive)

5Q0411105HD Length 284mm, Wire diameter 12.25mm

5Q0411105HE Length 281mm, Wire diameter 12.5mm

5Q0411105HG Length 287mm, Wire diameter 13mm

Lowered ride height rear spring (for Superb MK3) (specification according to gknautomotive)

3Q0511115AB Length 322mm, Wire diameter 13mm

Edited 23 July, 202523 Jul by Carlston

My superb leave factory with

front 5Q0 411 105 GN

rear 3Q0 511 115 AK

this is from partslink24 information, but i have experience with rear shockabsorber where partslink give me wrong number 😬

this is my first wag group car , and i can tell im disappointed with this things..

before superb i drive volvo and i can confirm much better with replacement parts and very cleaned explained what you can upgrade and mount on your ride 😇

I found one superb sportline same type like mine year and engine, have a

5Q0 411 105 HD front

3Q0 511 115 T rear

maybe not stiff but lowered 100%

1 hour ago, Sladan said:

I found one superb sportline same type like mine year and engine, have a

5Q0 411 105 HD front

3Q0 511 115 T rear

maybe not stiff but lowered 100%

5Q0411105HG front and 3Q0511115AB rear looks like a good starting point for the Superb MK3 2.0TDI FWD hatchback.

There are so many variables that trial and error is needed to find out what the finished result looks like.

It can be difficult to get the front and rear ride height looking spot on first time.

Eibach R14665 (sold to replace 5Q0411105HG and 5Q0411105HH)

Length 287mm, Wire diameter 12.75mm

https://www.autodoc.co.uk/eibach/17875999

Eibach R21875 (sold to replace 3Q0511115AB and 5Q0511115FP)

Length 330mm, Wire diameter 13mm

https://www.autodoc.co.uk/eibach/18112504

Edited 23 July, 202523 Jul by Carlston

now i trying with

5Q0 411 105 HD front

3Q0 511 115 T rear

because this is factory calculating.

Next week report and pict. ducumentation

I instaled this spring and at this moment visible some maybe 1 cm lowered..but it is new, with the time to be going maybe another 1cm lowered.

I made pict. old and new spring, here can we see different between normal and sportline.

I instal kyb absorbers and eibach spring, first moment on road was amazing 🤙 little bit stiffer but not so much, perfect compare.

20250729_161734.heic 20250726_203830.heic