suspension noise ???

Post by **whispers** » Mon Jan 30, 2006 12:09 am

hi , new to the site
have a 52reg rs6 avant, had it 12months , getting really bad rattle on the o/s from what i think is the suspension , tyres are fine , (at correct pressure) its when i go over any bump in the road , the n/s is fine .
can only explain it sounds like hitting the pothole that dented an alloy on my previous S3.
any ideas pls
(ps , booked in at audi on thurs 02/02/06)
thanks
Chris

Post by **shimmy** » Mon Jan 30, 2006 1:01 am

chris

no idea but in the last few days notice a certain noice one speed bumps on the right front suspension.

going to check it out during the week and see what I can find.

let me know your findings

Post by **whispers** » Mon Jan 30, 2006 10:33 am

yeah speed bumps , go over them at more than 5-10mph and its as if the car bounces like a dune buggy !
will let you know how i get on ...
managed to get a master technician on the phone at audi assist , he says maybe something to do with actuator on rear suspension ....

Post by **peterb** » Mon Jan 30, 2006 10:34 am

Mine has also developed a rattle (nearside). However, I did notice that one of the rivits holding the bottom edge of the sill extension has pulled out. Will try replacing this and see if the rattle goes away.

Post by **mwcltd** » Mon Jan 30, 2006 2:41 pm

You will probably find that the suspension noise is the shock absorber that has leaked fluid. There seems to be a problem on RS6/RS6+ cars where this happens at almost random intervals. I have had all four of mine replaced and I am about to have the other one replaced and I have done 25k miles. I am not sure that this is on the RS6 but on the RS6+ there is also a pressure accumulator that has to be replaced if the shock absorber is replaced.

Post by **SteveH** » Mon Jan 30, 2006 11:30 pm

Evening... New to the site also; returned from a week on the slopes in Mid Jan, jumped into the motor to go to work and found that the NSF had practically no damping. The Audi ambulance took it away and left me with a Volvo. Transpired that it was an OSR leak, they replaced the suspension, pipes and valve accumulator thing. It took a week to source all the bits and fit them, then a further week to bleed the system. The dealer advised that they really struggled to get a proper reading on the kit and that it took 7 attempts to get it right. Collected it on Friday and all is well except for an occasional very minor rattle NSF when the road surface is poor or a small pothole. Am intrigued as to how long it has taken other dealers to replace a suspension arm and get back onto the road, can anyone beat two weeks? Having driven another car for two weeks, you really respect getting back into the beast. Had a massive grin on my face driving home from the dealer, that almost made me forgive them to taking so long. Neck muscles are now nearly back to full strength after driving for a few days.

Post by **skodaw** » Wed Feb 01, 2006 1:05 am

The process for replacement of suspension components with the DRC system is very complex, which involves using a special tool to bleed the system and replenish the fluid, however if done correctly should only need to be done once, it can have quite a dramatic effect on they way the vehicle behaves when even one shock starts to fail.

Post by **whispers** » Fri Feb 03, 2006 10:46 pm

gone into audi , its left rear that is knackered , and thats been causing it to feel that the problem was on the right !!!
the shock is £100 , parts £100 , electronic sensor is £600!!! plus the good old £70 per labour ...
GOOD JOB ITS UNDER WARRANTY !!!
cheers for all the help , its nice to get replies when its the first thing uv posted !!!

Post by **whispers** » Fri Feb 03, 2006 10:52 pm

gone into audi , its left rear that is knackered , and thats been causing it to feel that the problem was on the right !!!
the shock is £100 , parts £100 , electronic sensor is £600!!! plus the good old £70 per labour ...
GOOD JOB ITS UNDER WARRANTY !!!
cheers for all the help , its nice to get replies when its the first thing uv posted !!!

Post by **Rich_C** » Sat Feb 04, 2006 10:58 pm

Whilst my RS6 was in for it's service I asked Audi to investigate a minor metallic rattle I've been hearing if I go over bumps or potholes. Turns out I need my nearside rear shocker replacing as it has been weeping. I'm getting it replaced under my extended warranty so I don't feel too bad about the excessive cost. Apparently the service lady said it would have cost me in the region of £300 to £400 to have the work done if it wasn't under warranty. She didn't mention replacing an accumulator or electrical sensor ... do you reckon I should query it with her or let Audi get on and do the job?

Does anybody know if this a 'feature' of all RS6's or just the early reg's?

Rich.

Post by **peterb** » Sun Feb 05, 2006 10:17 pm

Okay, I've now fixed the loose rivet in the sill extension but the rattle is still there. Most of the time, the rattle sounds like it's somewhere in (or below) the nearside doors. Just occasionally it sounds as though it's coming from the luggage area.

I also get the impression that the car isn't perfectly settled in corners - the only way I can describe it is that the car feels like it's 'squirming' diagonally (left rear to right front) when cornering at speed, particularly if the road surface is uneven.

I guess that it's time to visit the dealer before the original warranty expires in May! It's done about 23k (mainly motorway) miles.

Post by **skodaw** » Mon Feb 06, 2006 7:23 am

peterb wrote:Okay, I've now fixed the loose rivet in the sill extension but the rattle is still there. Most of the time, the rattle sounds like it's somewhere in (or below) the nearside doors. Just occasionally it sounds as though it's coming from the luggage area.

I also get the impression that the car isn't perfectly settled in corners - the only way I can describe it is that the car feels like it's 'squirming' diagonally (left rear to right front) when cornering at speed, particularly if the road surface is uneven.

I guess that it's time to visit the dealer before the original warranty expires in May! It's done about 23k (mainly motorway) miles.

Yes you need to get it into your dealer, certainly sounds like you may have a shocker gone, what you describe for the car "squirming" is a classic symptom of shock failure.

@Rich_C
You don't always have to replace the valves - that's dependant on the fault.You do sometimes end up replacing the valves as well,but that will become apparent to the dealer as they complete the repairs, the tool used to purge the system and replenish the oil will highlight any problems

Post by **mwcltd** » Mon Feb 06, 2006 7:00 pm

My dealer informs me that if a shock absorber is replacced then the respective accumulator also has to be replaced. It then has to be bled from the opposite side otherwise air can get in to the system.

Post by **Rich_C** » Mon Feb 06, 2006 9:18 pm

I'll let Audi get on with the job in hand and report back what they do after Friday.

Rich.

Post by **mwcltd** » Wed Feb 08, 2006 7:48 pm

I have just had my NSR shock absorber and accumulator replaced. On speaking to the service manager this is a very common occurence on RS6 and RS6+ vehicles especially at the NSR corner. Basically it is Audis policy now only to replace the shock absorber/accumulator if it is leaking, not if it is weeping. My dealer had to send a photo of the shock absorber to Audi before they would authorize the replacement.

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suspension noise ???

suspension noise ???

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