TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Important stuff for H&R *coil-over* people: LR adjuster snapped just b/4 swap for 225...

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Old Mar 28, 2001 | 01:33 PM
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Default Important stuff for H&R *coil-over* people: LR adjuster snapped just b/4 swap for 225...

Very mild pot hole was all it took. Damn glad it did'nt happen in a high speed sweeper.

I'm the THIRD guy to get a broken adjuster that I know of with the attendant and sudden 2" collapse in suspension. Scary. Confirmed when H&Rs were removed from 180 as part of swap deal. Pics to follow.

H&R has got to fix this rear suspension problem once and for all. Spring replacement is not the fix for this! Damned if I'll mount the parts on my 225.
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Old Mar 28, 2001 | 01:36 PM
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These were on MK 3 springs then Col?
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Old Mar 28, 2001 | 01:46 PM
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Default Never had a chance to mount & test Mk3...spring was Mk1 (we have already forgotten Mk2)...

Broken adjuster, however, is not a spring related event. Rather, suspension travel in Golf 4 is so short that any spring bound up with the weight of TT is proving too much stress for kit adjusters. Three known guys with problem is very bad news.

At present, I would go with *coil-over* fronts (perfect), sport springs and shocks in rear, and adjust the fronts to match rears until a viable solution is presented. Serious engineering problems exist for rear. Period.
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Old Mar 28, 2001 | 01:50 PM
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Yikes! Lets hope the *rumored* fully Bilstein-made coilovers come to market.
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Old Mar 28, 2001 | 02:14 PM
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Default I agree with your analysis, and your solution, CB. Take 'em out if you have them.

Could you post closeup pics of the failed area?

This points out the difficulties of marketing aftermarket parts without thoroughly durability testing them, which is time consuming and very costly.

With all of the problems you folks have experienced with the rears on this system, you were the test fleet, IMO. Because this is a suspension bit, and potentially dangerous if it fails, the liability consequences are enormous for H&R.

My $.02
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Old Mar 28, 2001 | 02:19 PM
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Default With the design of the rear suspension using a separate spring and shock I think

the problem with exist with ANY adjustable height rear spring because you have to shorten the spring to allow for the adjustable perch and to allow it to have adequate range of adjustment.

I also think this has to do with the design of the fully independent suspension and orientation of the rear shock on the TT as well since this is not a problem on other MKIV cars with coilovers - at least it's something i've never heard of after moderating the MKIV forum on Vortex since the beginning.
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Old Mar 28, 2001 | 02:21 PM
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Default Re: Important stuff for H&R *coil-over* people: LR adjuster snapped just b/4 swap for 225...

While I am now happy with my H&R coilovers, I had a broken adjuster too. Maybe I'm already one of the 3 that you're referring to. The 3rd revision rear springs do seem to be a big improvement though, and I haven't had problems of any substance since.
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Old Mar 28, 2001 | 02:40 PM
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Default Pic of broken adjuster.

<center><img src="http://pictureposter.audiworld.com/3528/badjuster.jpg"></center><p>
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Old Mar 28, 2001 | 02:45 PM
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liability consequences are enormous for H&R. And how!
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Old Mar 28, 2001 | 03:40 PM
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Default I wonder if someone could>>

Design an upper crossmember so a true vertical coilover shock could be mounted in the rear?

Something like a simple tube crossmember that ran along the underside of the floor/trunk pan and bolted through the trunk floor or welded on?

I've got pictures of crossmembers like that on mustangs if anyone is interested in seeing what i'm talking about.

I'm not extremely familiar with the underside of the TT's floorpan though, to see if there is room etc.
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