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A6 4.2 Suspension - can I use S4 4.2 springs/shocks?

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Old 04-25-2016, 03:16 AM
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Default A6 4.2 Suspension - can I use S4 4.2 springs/shocks?

Hi all,

This may seem like a silly question but I'm new to the car (and Audi's) and I'm hoping someone will either already have done this/know why not to....

It's not easy finding used A6 4.2 suspension parts in the UK and I don't really want to fork out dealer prices/use coil overs/aftermarket parts as I don't know what else needs doing yet (car can't be driven due to the collapsed strut and has been off the road for years).

It is much easier to get hold of S6 4.2 parts online but I'm not certain if they will be exactly the same/they are interchangeable. Obviously the 4.2 engine and front end of the S6 will be the same weight approx. so....

Can I swap out both the front springs and shocks on my 1999 A6 Avant and replace with slightly later S6 front parts? Are they going to swap straight in and just go?

Any help is much appreciated!
Old 04-25-2016, 05:30 AM
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Default I doubt it. If the p/n are different and the platforms

Originally Posted by FenderSi
Hi all,

This may seem like a silly question but I'm new to the car (and Audi's) and I'm hoping someone will either already have done this/know why not to....

It's not easy finding used A6 4.2 suspension parts in the UK and I don't really want to fork out dealer prices/use coil overs/aftermarket parts as I don't know what else needs doing yet (car can't be driven due to the collapsed strut and has been off the road for years).

It is much easier to get hold of S6 4.2 parts online but I'm not certain if they will be exactly the same/they are interchangeable. Obviously the 4.2 engine and front end of the S6 will be the same weight approx. so....

Can I swap out both the front springs and shocks on my 1999 A6 Avant and replace with slightly later S6 front parts? Are they going to swap straight in and just go?

Any help is much appreciated!
as well, (C4 vs B?) chances are no. There are exceptions such as TREs, I believe, but the suspension parts are different.
Old 04-25-2016, 09:03 AM
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Default

The parts look identical and dimensions appear to be the same - I presumed the only difference across springs would be load weights but they surely are the same if the same platform/chassis and engine. I don't have part numbers as they are coming from a breaker car. Both parts are from a C5 platform with the same engine size as I say, just mine is 1999 and the other car is S6 so must be a few years newer? It's only £129 so I might just take a risk and sell on if they won't work....
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