S4 suspension in an a4

[Anthony1491]

Hey I was wondering if anybody could help me out with a question i have.

I'm attempting to fit s4 struts & shock absorbers on my car with either a4 s-line springs, a4 sport springs or a third party spring (h&r or comparable brand)

The donor car is a 2015 s4 (b8.5) and they're going into a 2011 a4 (b8)

Has anybody done this before? Will i run into any problems or are the shocks/struts interchangeable between these models?

The reason i don't want to go with a coilover or aftermarket spring/stut/absorber is cost & i would like to stay as oem as possible

[Project Quattro]

The S4 weighs significantly more, so S4 suspension doesn't retrofit well. A4 sport package suspension is about as low as you'll be able to go using OEM components.

[jmeenach]

The S4 weighs significantly more, so S4 suspension doesn't retrofit well. A4 sport package suspension is about as low as you'll be able to go using OEM components.

+1

Your front end will sit pretty high if you swap in S4 coils due to the additional weight of the 3.0

[Anthony1491]

The S4 weighs significantly more, so S4 suspension doesn't retrofit well. A4 sport package suspension is about as low as you'll be able to go using OEM components.

+1

Your front end will sit pretty high if you swap in S4 coils due to the additional weight of the 3.0

This applies even if i use springs designed for the a4?
Or is the compression of the strut that makes it sit higher? Sorry i'm just trying to find out why as there no info i can find online about this

Thanks for the replies!

[jmeenach]

This applies even if i use springs designed for the a4?
Or is the compression of the strut that makes it sit higher? Sorry i'm just trying to find out why as there no info i can find online about this

Thanks for the replies!

If you are using A4 springs and S4 struts, you might be ok. Not a common thing on here TBH.

[The Infiltrator]

I'm sure this giant thread would have the info you seek.
http://www.audizine.com/forum/showth...spension-Setup!

[Anthony1491]

I'm sure this giant thread would have the info you seek.
http://www.audizine.com/forum/showth...spension-Setup!

already went though it all , no luck unfortunately.

[The Infiltrator]

already went though it all , no luck unfortunately.

Damn, lol.

I would say just got with A4 items. The S4 shocks and springs account for different weights and drops. You can try it but it might not workout for you, only one way to find out.

[poweredbyaudi7]

If the spring rate is so different between a4 and s4, then why does H&R Springs fit both cars with the same part number? Hell, even the OEM spring part numbers are identical....smh


S4
https://genuineaudiparts.com/parts/2...mponent=Spring


A4
https://genuineaudiparts.com/parts/2...mponent=Spring

[S4'ed]

The front of the S4 does not weigh that much more than a 2.0T A4. The 2.0T is a cast iron block, the 3.0 is aluminum.
Try it. If it sits too high the front struts/springs are easily removed.

The part numbers are the same, but the paint color marks are what designate the different spring rates within that part number family. Generally, VW/Audi seems overly anal about using slightly different spring rates on the same model.

I would try the S4 shocks with the S4 springs.

Then get yourself a set of upgraded front and back anti-sway bars....like the Eurocode ones...for an impressive improvement.

[jmeenach]

If the spring rate is so different between a4 and s4, then why does H&R Springs fit both cars with the same part number? Hell, even the OEM spring part numbers are identical....smh


S4
https://genuineaudiparts.com/parts/2...mponent=Spring


A4
https://genuineaudiparts.com/parts/2...mponent=Spring

I don't know why they show that. But the individual color codes will tell you what the actual stiffness and spring rate are, and as you can see, there are several options.

[PBKIDD24]

If the spring rate is so different between a4 and s4, then why does H&R Springs fit both cars with the same part number? Hell, even the OEM spring part numbers are identical....smh


S4
https://genuineaudiparts.com/parts/2...mponent=Spring


A4
https://genuineaudiparts.com/parts/2...mponent=Spring

In reguard to H&r springs, could this be the reason a lot of a4 owners expirence the back sag look and s4 owners don't? I always wondered why a good amount of a4 owners do not really reccomend the H&r OE SPORT springs due to the front end looking higher, while almost every s4 I see with the same springs doesn't have this issue.

[Anthony1491]

The front of the S4 does not weigh that much more than a 2.0T A4. The 2.0T is a cast iron block, the 3.0 is aluminum.
Try it. If it sits too high the front struts/springs are easily removed.

The part numbers are the same, but the paint color marks are what designate the different spring rates within that part number family. Generally, VW/Audi seems overly anal about using slightly different spring rates on the same model.

I would try the S4 shocks with the S4 springs.

Then get yourself a set of upgraded front and back anti-sway bars....like the Eurocode ones...for an impressive improvement.

Already have the sway bars! Thanks for the info, appreciate it

If anybody has put s4 suspension on there a4 and has a picture of how it looks i'd be eternally grateful

[Lambda13]

Maybe part number is the same because the fitment and location are the same?

[Project Quattro]

Maybe part number is the same because the fitment and location are the same?

I think the aftermarket springs are stiffer than any OE option, also, so they'll work equally well for whatever.

[Anthony1491]

The S4 weighs significantly more, so S4 suspension doesn't retrofit well. A4 sport package suspension is about as low as you'll be able to go using OEM components.

So I looked up the weight difference between my car and the 2015 s4 and the theirs only a 150 pound difference between the two. I'm considering just trying to run the s4 springs on it as well with such a small difference

[COLD13]

Just imagine the amount of money you might be wasting to have this setup installed then uninstalled if you don't like it. Unless you are doing the work yourself or have a friend doing it for pennies, I'd stay away from this setup. There is a reason you can't find anyone else that's done it.
Good luck.

[4ringnut]

The front of the S4 does not weigh that much more than a 2.0T A4. The 2.0T is a cast iron block, the 3.0 is aluminum.
Try it. If it sits too high the front struts/springs are easily removed.

The part numbers are the same, but the paint color marks are what designate the different spring rates within that part number family. Generally, VW/Audi seems overly anal about using slightly different spring rates on the same model.

I would try the S4 shocks with the S4 springs.

Then get yourself a set of upgraded front and back anti-sway bars....like the Eurocode ones...for an impressive improvement.

Springs are easily removed? What the hell are you smoking?

[Anthony1491]

Just imagine the amount of money you might be wasting to have this setup installed then uninstalled if you don't like it. Unless you are doing the work yourself or have a friend doing it for pennies, I'd stay away from this setup. There is a reason you can't find anyone else that's done it.
Good luck.

I just got all 4 springs and struts from a donor s4 for $100 bucks and would be doing the install myself with my brother so it wouldn't be the worst thing if we'd have to put on the original stuff back on.

I also found out what the colors on the springs were on the s4 stuff
Front - 0JG 1 violet, 2 orange (load rating of 7)
Rear - 0YK 1 green, 1 grey, 1 blue (load rating of 10)



I'm not sure what my stock b8 springs are, but once i do i can compare to see where they'll sit and if it will be worth it to run these s4 springs or look for used a4 sport or sline springs and use them with the s4 struts.

Either way, the part numbers on the stuts match the replacement sports ones for both the a4 and s4 so I know those are ok to use

EDIT**

I've checked out my existing springs and this is the color combo

Front - 0JH 1 violet, 3 orange (load rating of 8)
Rear - 0YJ 1 green, 1 grey, 3 white (load rating of 9)

Looks like I could probably get away with using the s4 front springs but I want to go lower, so I'll be on the look out for springs

[skis4hire]

check this out, you can of course ignore the allroad parts.
http://www.audizine.com/forum/showth...sion-Reference

How did you determine your existing spring codes at the end of your post? Something is wrong there.
The color codes are specific to the part number, not just the weight code, so the same weight code in non-sport and sport suspension will have different paint codes.

If those are indeed the color codes painted on your springs, then you already have sport suspension. None of the non-sport springs have 1violet 3 orange color code.
I suspect 0JH/0YJ are the weight codes from your option sticker? If so, then see the post I linked to look up what your color codes and part #s should be for your existing stock suspension (1-BA).

In any case, the weight code 0JH etc. is the important part. If you're 1 category off, you can probably get away with it.
Because your donor suspension is made for a car that is lighter than yours in the front and heavier in the rear, you may get a raked effect by putting it on.

[S4'ed]

Springs are easily removed? What the hell are you smoking?

It's not exactly like rebuilding an engine.......5 bolts at the top, one bolt at the bottom, and a spring compressor......

[Anthony1491]

check this out, you can of course ignore the allroad parts.
http://www.audizine.com/forum/showth...sion-Reference

How did you determine your existing spring codes at the end of your post? Something is wrong there.
The color codes are specific to the part number, not just the weight code, so the same weight code in non-sport and sport suspension will have different paint codes.

If those are indeed the color codes painted on your springs, then you already have sport suspension. None of the non-sport springs have 1violet 3 orange color code.
I suspect 0JH/0YJ are the weight codes from your option sticker? If so, then see the post I linked to look up what your color codes and part #s should be for your existing stock suspension (1-BA).

In any case, the weight code 0JH etc. is the important part. If you're 1 category off, you can probably get away with it.
Because your donor suspension is made for a car that is lighter than yours in the front and heavier in the rear, you may get a raked effect by putting it on.

Thanks for pointing out my mistake, may have saved me some time. The chart I posted only applies to sport/sline suspension so the paint codes for 0JH/0YJ on a non-sport vehicle (1BA) have different weight codes. I can't find the weight code pertaining to the non sport vehicles though.

At this point it looks like running the s4 springs are a no go if i want any sort of drop.
Looking into H&R OE sport or seeing if i can get a used pair of sline springs for cheap with the proper paint code.
On the plus side, the guy i bought the s4 springs/struts from also included a pair of upper control arms for free so i can replace my old ones with a pretty much brand new set (less than 8000km on them)

I also found someone who's done pretty much the same thing that I want to do, he got OEM springs at a lower weight class that worked with s4 sports struts. He had the same option codes (0JH/0YJ) on non-sport suspension.
http://www.audizine.com/forum/showth...1#post10651047

[LagO]

Can anyone help me out.. I have oyj and ojh for my stock suspension. I currently have h&r coilovers that seem to be hitting their limits.
I want to put sline suspension on so I can get a simple drop but comfort. If I want a good drop with sline and my codes are oyj and ojh.. which are compatible with my car for a good drop. Lower than normal sline would be good but normal sline is fine too Thanks!


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[Liquid Smoke]

Can anyone help me out.. I have oyj and ojh for my stock suspension. I currently have h&r coilovers that seem to be hitting their limits.
I want to put sline suspension on so I can get a simple drop but comfort. If I want a good drop with sline and my codes are oyj and ojh.. which are compatible with my car for a good drop. Lower than normal sline would be good but normal sline is fine too Thanks!

you can use the s-line sport/s4 shocks and use H&R OE springs for a nice but comfortable drop, it will sit around 1.2" lower than stock (for reference, s-line/s4 sits about 0.8" lower). i don't think you'll get much of a drop with any of the OEM springs, if you want a lowered look i'd go with the aftermarket lowering springs.

H&R OE springs gives a good practical drop, still looks lowered and good if you're running 19s, doesn't look too high but still comfortable for daily driving and not low enough to scrape around everywhere, or with people in the back, etc.

[LagO]

you can use the s-line sport/s4 shocks and use H&R OE springs for a nice but comfortable drop, it will sit around 1.2" lower than stock (for reference, s-line/s4 sits about 0.8" lower). i don't think you'll get much of a drop with any of the OEM springs, if you want a lowered look i'd go with the aftermarket lowering springs.

H&R OE springs gives a good practical drop, still looks lowered and good if you're running 19s, doesn't look too high but still comfortable for daily driving and not low enough to scrape around everywhere, or with people in the back, etc.

Thanks for the reply... So my hr coilover shocks are shot(leaking) can I use my springs from my coilovers with sline shocks and get a nice comfortable lowered look?



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[Slim0531]

I'm on s line springs and tried H&R OE springs. Initially it felt good and drop is just perfect but a year and a half later, I started noticing the reverse rake and a rougher ride. Remedied the reverse rake with a rear spring Perch spacer and it was ok for a while. It wasn't until I drove a loaner A4 with s line spring and sport shocks that I realized how much better it felt than my current set up. I went back to my original set up of s line spring and new set of OEM sport shocks and never felt happier. I'm running on 19 wheels and it looks OEM plus. To address the stability, I had 034 RSB installed with moog end links and called it a day.


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