Rear Coil Broke; What To Replace It With

[LanceSupersad]

I have a 2006 A4 Avant, 6Spd quattro, Other than a computer "upgrade" on my car, it is stock. Today I heard the very annoying "sproing" sound of a spring breaking, and when I got home, sure enough it is sitting lower on the right side.

So, my original springs are orange-orange-white (as far as I can tell), but my car has always felt a little squishy, and wonder if it's time to look into that. My comparison of squishy is compared with my GF's 2003 GTi, which definitely is configured more towards performance than comfort.

Regardless, without going to a dealership, what are my options for replacing this spring (and, I suppose, possibly the other one as well)? Is there any changes that I can do relatively inexpensively to this vehicle to make it a bit more stiff, like replacing all the springs with ones from an S-Line (just an example, don't know if that is even a thing), or maybe "Check the classifieds for a <blah> kit"?

Thankfully the spring broke right near the bottom, so it's not a safety issue yet, but I have a lot of maintenance to be doing soon, and figure I could tuck into that job at the same time.

I am also in Canada, but I live 5 minutes from Detroit, so it's no biggie to go over and pick up parts.

[Nollywood]

The most cost effective option would be to replace the springs with a used set of Sport spring, from an S-Line.

Or a brand new set of Vogtland springs. They don’t have an aggressive drop, so you can retain your original dampers, as long as there are no signs of leaking.

[charmar]

I have a set of sport (S-line) springs that I just removed when I installed lowering springs. From a sedan, not an Avant. Pm me if interested.

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[Ashtonts]

Just want to add: definitely don’t replace your springs with something lower or more aggressive than what you already have without also replacing the shocks. It sounds like you’re after a spring with a more aggressive spring rate. You will blow blow your current dampers if you do this, or you can make it so that your shocks can no longer dampen your suspension, and you’re riding only on the spring, which feels terrible. You’re especially at risk of blowing them if they’re your 13 year old, tired, stock shocks. Do it right and replace both if you’re already in there.

[LanceSupersad]

I have a set of sport (S-line) springs that I just removed when I installed lowering springs. From a sedan, not an Avant. Pm me if interested.
Since they're not from an Avant, will they change my ride height dramatically?

The most cost effective option would be to replace the springs with a used set of Sport spring, from an S-Line. Or a brand new set of Vogtland springs. They don’t have an aggressive drop, so you can retain your original dampers, as long as there are no signs of leaking.
I don't wnt to lower my car; I've gone through lowering when I was younger, but now I dislike the aesthetic. Thanks for the input!

Just want to add: definitely don’t replace your springs with something lower or more aggressive than what you already have without also replacing the shocks. It sounds like you’re after a spring with a more aggressive spring rate. You will blow blow your current dampers if you do this, or you can make it so that your shocks can no longer dampen your suspension, and you’re riding only on the spring, which feels terrible. You’re especially at risk of blowing them if they’re your 13 year old, tired, stock shocks. Do it right and replace both if you’re already in there.
Are you saying the S-Link springs, with my "stock" shocks is a bad idea (note: you're right that they're likely the originals with the car)? I am a fan of trying to maintain OE if the effort is reasonable, and the cost makes sense.

[charmar]

Since they're not from an Avant, will they change my ride height dramatically?

Seems logical that the ride height might drop a little, but I'll defer that question to someone more knowledgeable than myself.

As to replacement shocks, Bilstein B4's or Koni STR.T kit are great options, at a fraction of the cost of OE.

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[EvolutionArmory]

When my wife’s car broke a spring I replaced it with a genuine Audi spring and a Bilstein B4 standard shock. If you have no desire to lower the car, just buy a genuine spring and replace the shock while you’re in there. Just fix what’s broken.

Or replace both rear springs and shocks to even the ride out. There’s really no need to do a full suspension overhaul if just the rear is the problem right now unless you just want to get it all over with.

[Nollywood]

Seems logical that the ride height might drop a little, but I'll defer that question to someone more knowledgeable than myself.

As to replacement shocks, Bilstein B4's or Koni STR.T kit are great options, at a fraction of the cost of OE.

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Most likely the ride height will be close to stock, as the Avant rear spring rates are different, and set to accept more weigh than a sedan.