Afternoon,

I have just become the owner of a 2018 Superb estate SE-L in fetching petrol blue colour. It's the 1.5 DSG, and I bought it off a friend who was poised to part exchange it for an Enyaq for a ridiculously low sum.

I am coming from a 2016 Volvo XC70, which I love, but which has left me stranded 3 times in the last 6 months with intermittent electrical gremlins that good people are struggling to solve.

In time I'll need to sell one of the cars, but am rather enjoying the refinement and smoothness of the Superb.

My first question is about the rear suspension. I know for sure that, when we are loaded for camping with a 680l roofbox / bikes / kids, the Superb will be dragging her bum along the road.

I have scoured the forum and gather there are two options

1. Upgrade to springs with a higher weight range (probably two weight ranges up)

2. Install Grayston auxilary springs assistors, which I have used before.

My question is - which will be the more effective? I'm looking to preserve the excellent unladen ride, whilst ensuring the suspension remains as level and controlled as possible under heavy load.

Any expertise or experience is welcome.

Best wishes

James

Welcome to the forum.

There may be a third option to consider if they are available for a Superb - air shocks.

@PetrolBlueSuperb

your headache is not complete

add third option, stiffer springs with no height change

-> https://www.briskoda.net/forums/topic/510961-2023-280ps-lk-replaced-2016-220ps-style/page/3/#findComment-5854160

Welcome. The car has a max revenue weight (max gross vehicle weight). Loaded to that it should not be dragging its bum. But i see your point. Suspension can get tired.

Edited 28 May28 May by Evolution13

20 hours ago, PetrolBlueSuperb said:

...I have just become the owner of a 2018 Superb estate SE-L...It's the 1.5 DSG...Upgrade to springs with a higher weight range (probably two weight ranges up)...

The Superb MK3 parts catalogue lists ten standard ride height rear springs for the FWD (Front Wheel Drive) car, as shown below. The springs are listed in order from softest to stiffest.

Standard ride height rear springs (Superb MK3 FWD)

3Q0511115AH (Length 363mm, Wire diameter 11.25mm)

3Q0511115AJ (Length 361mm, Wire diameter 11.75mm)

3Q0511115AK (Length 364mm, Wire diameter 12.25mm)

3Q0511115AL (Length 359mm, Wire diameter 12.5mm)

3Q0511115M (Length 360mm, Wire diameter 12.75mm)

3Q0511115N (Length 361mm, Wire diameter 13.25mm)

3Q0511115P (Length 361mm, Wire diameter 13.5mm)

3Q0511115Q

3Q0511115R (Not available aftermarket)

3Q0511115BC (Not available aftermarket)

Kilen 65125 (matches 3Q0511115AL) (£55.49 for two, on ebay)

https://www.autodoc.co.uk/car-parts/oem/3q0511115al?supplier%5B%5D=246

https://www.ebay.co.uk/itm/352663645780

Kilen 65126 (matches 3Q0511115M) (£55.49 for two, on ebay)

https://www.autodoc.co.uk/car-parts/oem/3q0511115m?supplier%5B%5D=246

https://www.ebay.co.uk/itm/352663645884

Bilstein 36-301942 (matches 3Q0511115N)

https://www.autodoc.co.uk/car-parts/oem/3q0511115n?supplier%5B%5D=16

According to the Kilen online spring catalogue the Superb MK3 1.5TSI estate FWD with standard ride height has the third in the list, ie. 3Q0511115AK.

However, according to the gknautomotive online spring catalogue the Superb MK3 1.5TSI estate FWD with standard ride height has the fourth in the list, ie. 3Q0511115AL.

One way to find out what the factory fitted rear springs are is to open an account on "skoda parts com" and put the car in their online garage with its VIN number. Then when the rear springs are searched for, only the factory fitted ones will be shown...which enables the original OEM part number to be found.

Edited 28 May28 May by Carlston

Here's a part numbers chart I've been working on. It's not all verified but should give you a good overview.

skoda_superb_mk3_suspension_v1.html

Thank you so muchbto everyone who has replied so far.

I have looked on Skoda Parts and the factory fit are 3Q0 511 115 AL, so the fourth on the list. Very useful to know what I would go up to.

To answer the question of sag, it's probably a mixture of boarderline overloading, plus distribution. We have small kids who don't weight much over the axle, and then the heavy stuff like a 60kg air tent and towbar mounted e-bikes sticking way out the back, which has made both previous estates sit low.

The air springs are on option for the Superb but I think about £600 fitted, which is probably more than I want to pay.

So my choice is between going to the N spring, or the Mad helper springs. The former is a lot cheaper.

Does anyone have an instinct as to which will be better - the best compromise between comfy as normal unladen, and as level as possible laden?

Thanks again,

James