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Suspension issue

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Old 06-02-2014, 08:34 PM   #1
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Default Suspension issue

Hi guys,

New D3 owner here, 2007 S8 with 102,750 miles on the clock. Have been finding a few problems with the car even though it was purchased from an Audi dealer (out of state) who stated that the car was 100% sound. There is a clunking, rattling sound when going over bumps, or uneven asphalt. Does this sound like anything common, like a control arm issue or another part of the suspension that is prone to failure in this car? Any and all help is greatly appreciated!

Thanks,
Scott
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Old 06-02-2014, 09:53 PM   #2
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Usual starting point--front upper inner control arm bushings
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Current #1: '06 D3 A8L W12 brilliant black w/ amaretto; 4 seat setup, CPO; modestly lowered, H&R 20mm rear and 12mm front DRs with 275/35 on OEM polished + forged 20's; S8 sway bars (see: rear bar and gen'l D3 bar info and front bar); tweaked 385mm front factory brake mod and matching rear brake mod; matching C6 A6 back headrests (better rear view: headrest tweak); owner installed AMI retrofit with part number details here. [If you want pics in foregoing links, ask AW where they went...used all to work] Upper control arm reference (+ more info in replies) here. Lower cost D3 OES sway bar links here.
Current #2: 2013 Q5 2.0T hybrid; Scuba blue w/ chestnut sport interior; Euro delivery 7/2013 (pictured at Ingolstadt); RS5 front brakes
Prior (each modded): 2000 C5 A6 4.2 & '96 C4 A6 2.8Q, both still w/ family; '85 C3 5000S 5 sp FWD; '73 C1 100LS

helpful cross reference to a C6 post with MMI and other TSB's that also cover D3 A8's.

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Old 06-03-2014, 06:26 AM   #3
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Quote:
Originally Posted by MP4.2+6.0 View Post
Usual starting point--front upper inner control arm bushings
Thanks MP, I'm going to bring it in to get checked out. There is no squeaking or creaking, just a clunking sound. It almost sounds like something is loose, not as tight as it should be. Think I will just bring it in to a local Audi dealer and have them perform a scan and do a physical check on everything since I am having a headlight issue that I posted about earlier and a couple of other minor things. I'll post the results as soon as I find them out.

Thanks again!
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Old 06-03-2014, 07:33 AM   #4
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Default Other possible items for "clunks" night be...

the u links at the end of the front roll bar where it bolts to the suspension arms, and the roll bar bushings where the bar bolts to the engine subframe. Those are among the more commonly discussed; obviously there are lots of theoretical possibles, plus loose bolts and such if something was overlooked in prior work.
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Current #1: '06 D3 A8L W12 brilliant black w/ amaretto; 4 seat setup, CPO; modestly lowered, H&R 20mm rear and 12mm front DRs with 275/35 on OEM polished + forged 20's; S8 sway bars (see: rear bar and gen'l D3 bar info and front bar); tweaked 385mm front factory brake mod and matching rear brake mod; matching C6 A6 back headrests (better rear view: headrest tweak); owner installed AMI retrofit with part number details here. [If you want pics in foregoing links, ask AW where they went...used all to work] Upper control arm reference (+ more info in replies) here. Lower cost D3 OES sway bar links here.
Current #2: 2013 Q5 2.0T hybrid; Scuba blue w/ chestnut sport interior; Euro delivery 7/2013 (pictured at Ingolstadt); RS5 front brakes
Prior (each modded): 2000 C5 A6 4.2 & '96 C4 A6 2.8Q, both still w/ family; '85 C3 5000S 5 sp FWD; '73 C1 100LS

helpful cross reference to a C6 post with MMI and other TSB's that also cover D3 A8's.

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Old 06-03-2014, 09:09 AM   #5
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These are what were the source of some very loud clunking on my A8L W12.

http://www.ebay.com/itm/New-Moog-Swa...9c68e3&vxp=mtr

Although I purchased mine from Audi.
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Old 06-03-2014, 09:38 AM   #6
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Quote:
Originally Posted by MP4.2+6.0 View Post
the u links at the end of the front roll bar where it bolts to the suspension arms, and the roll bar bushings where the bar bolts to the engine subframe. Those are among the more commonly discussed; obviously there are lots of theoretical possibles, plus loose bolts and such if something was overlooked in prior work.
Thanks, I'll add that to the list of possiblilities. Can't wait to have the car the way it's supposed to be so I can fully enjoy it.
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Old 06-03-2014, 09:41 AM   #7
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Originally Posted by JohnnyJ A6Q View Post
These are what were the source of some very loud clunking on my A8L W12.

http://www.ebay.com/itm/New-Moog-Swa...9c68e3&vxp=mtr

Although I purchased mine from Audi.
I now have an appointment for tomorrow morning to have diagnostics and a complete check up at my local Audi dealer. It does sound like the sway bar links could be the main cause of my suspension issues.

Thanks for your help, will report back with my progress.
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Old 06-07-2014, 09:26 AM   #8
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Hi everyone,

Just got the car back from Audi today, they had it since Wednesday morning. The following is what they found:

The headlight issue was just a loose wire, the Audi tech at the dealership where I purchased the car didn't install it correctly when changing the blub due to the fact that he was rushing to go to lunch and didn't want to remove the airbox fully.

The suspension issue is due to the need of stabilizer links (which includes the upper control arms) and lower control arms.

The check engine light (which came on while I was on the way to drop the car off at Audi) and the delayed start when starting the car for the first time of the day are caused by a thrust sensor (going to look that up now since I have no idea about it) that needs to be replaced. The code that came up for the CEL was for low fuel pressure due to a faulty thrust sensor.

The EPC light (which came on once with no other symptoms) is a sporadic fault and was cleared but if it comes on again it is recommended to replace the full shifter assembly due to a internal fault. It was also explained that this could have been due to bad gas being put in the car previous to me purchasing it last week. The dealership probably was only putting regular gas in it while it was on their lot.

Driver's exterior door lock button not functioning, it is shorted and needs replacement of the entire handle. (not a big deal for me, will leave that one alone).

Passenger front door power assist not functioning, the drive unit is not working and needs to be replaced for the vacuum feature to work. (another feature I can do without).

Low horn not functioning, has internal short, needs to be replaced. Think I can tackle this one myself.

Thanks for all of the input guys, any comments?

Last edited by sel126; 06-07-2014 at 10:42 AM.
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Old 06-07-2014, 12:20 PM   #9
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It's a shame the car has all these faulty features that "you can live without". I don't understand why People buy cars with all the bells and whistles and when those bells and whistles break (and they do) you resort to not fixing it.
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Old 06-07-2014, 12:22 PM   #10
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But I should also say that I'm glad that you now know what the issues are now and that the dealer didn't take advantage - I hope.
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Old 06-07-2014, 01:02 PM   #11
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Originally Posted by Fez2013 View Post
It's a shame the car has all these faulty features that "you can live without". I don't understand why People buy cars with all the bells and whistles and when those bells and whistles break (and they do) you resort to not fixing it.
Just bought the car used, it happened to come with those "bells and whistles". They weren't deal breaker kind of features for me. That being said I do enjoy having them, but don't need them. The safety and performance issues need to be addressed before anything else does.
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Old 06-07-2014, 01:08 PM   #12
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But I should also say that I'm glad that you now know what the issues are now and that the dealer didn't take advantage - I hope.
Thanks, hopefully this dealer was honest with their diagnosis. The out of state dealer that sold me the car and swore that the Audi technicians that worked on the car stated that it was a 100% safe to drive and ready to go wasn't honest at all. I will be contacting him, forwarding the estimate, and also making sure that Audi of America is aware of their tactics. I did get the car at a great price and realize that it is almost 8 years old with 102,000 on the clock so I'm not upset that there are a few issues. I just would have liked the dealer to be honest about it, especially when he was aware that I had to drive almost 500 miles to get home and he still put me in danger.
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Old 06-07-2014, 02:02 PM   #13
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Quote:
Originally Posted by sel126 View Post
Thanks, hopefully this dealer was honest with their diagnosis. The out of state dealer that sold me the car and swore that the Audi technicians that worked on the car stated that it was a 100% safe to drive and ready to go wasn't honest at all. I will be contacting him, forwarding the estimate, and also making sure that Audi of America is aware of their tactics. I did get the car at a great price and realize that it is almost 8 years old with 102,000 on the clock so I'm not upset that there are a few issues. I just would have liked the dealer to be honest about it, especially when he was aware that I had to drive almost 500 miles to get home and he still put me in danger.
I agree, they are very misleading. I too would go after them for the repair costs. Good luck with your car, after all said and done you'll definitely enjoy it.
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Old 06-07-2014, 05:31 PM   #14
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Actually we can live without driving any A8... let alone "walking wounded" ones. :-)

Sometimes a cheaper car doesn't mean it's a great deal...

Cheers, congrats and good luck,

Louis
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Old 06-07-2014, 09:58 PM   #15
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Originally Posted by Fez2013 View Post
I agree, they are very misleading. I too would go after them for the repair costs. Good luck with your car, after all said and done you'll definitely enjoy it.
Thanks Fez, appreciate it!
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Old 06-07-2014, 10:04 PM   #16
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Originally Posted by ltooz_a6_a8_q7 View Post
Actually we can live without driving any A8... let alone "walking wounded" ones. :-)

Sometimes a cheaper car doesn't mean it's a great deal...

Cheers, congrats and good luck,

Louis
I hear you Louis, glad that there are no major issues. I figured that if there were any, I would just trade it in. Since I pretty much paid the trade in price, it was worth rolling the dice.

Thanks,
Scott

BTW, I saw some of your posts, really great stuff. Your help and knowledge will definitely be put to good use. Probably going to tackle the remote close trunk as soon as I get all of this other stuff worked out. Thanks for the great write up and videos.
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Old 06-11-2014, 05:12 PM   #17
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Hope you are enjoying the car, overall. We just bought a 2007 S8, as well, and are loving it so far. Amazing vehicle!
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Old 06-12-2014, 11:14 AM   #18
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Originally Posted by Howaboutthat View Post
Hope you are enjoying the car, overall. We just bought a 2007 S8, as well, and are loving it so far. Amazing vehicle!
Thanks, I agree, the car is amazing! Unfortunately, I haven't been able to fully enjoy it yet since I still have to get all the bugs worked out. Best of luck with your new toy, ENJOY!!!
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Old 06-13-2014, 02:28 PM   #19
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Originally Posted by sel126 View Post
Hi everyone,

Just got the car back from Audi today, they had it since Wednesday morning. The following is what they found:

The headlight issue was just a loose wire, the Audi tech at the dealership where I purchased the car didn't install it correctly when changing the blub due to the fact that he was rushing to go to lunch and didn't want to remove the airbox fully.

The suspension issue is due to the need of stabilizer links (which includes the upper control arms) and lower control arms.

The check engine light (which came on while I was on the way to drop the car off at Audi) and the delayed start when starting the car for the first time of the day are caused by a thrust sensor (going to look that up now since I have no idea about it) that needs to be replaced. The code that came up for the CEL was for low fuel pressure due to a faulty thrust sensor.

The EPC light (which came on once with no other symptoms) is a sporadic fault and was cleared but if it comes on again it is recommended to replace the full shifter assembly due to a internal fault. It was also explained that this could have been due to bad gas being put in the car previous to me purchasing it last week. The dealership probably was only putting regular gas in it while it was on their lot.

Driver's exterior door lock button not functioning, it is shorted and needs replacement of the entire handle. (not a big deal for me, will leave that one alone).

Passenger front door power assist not functioning, the drive unit is not working and needs to be replaced for the vacuum feature to work. (another feature I can do without).

Low horn not functioning, has internal short, needs to be replaced. Think I can tackle this one myself.

Thanks for all of the input guys, any comments?
Hi everyone,

Just wanted to give you all of you helpful guys an update.

I have been in constant contact through emails with the sales manager, Jeff Ward, at Audi Willoughby (Ohio). He refuses to admit fault with any of the issues the car was delivered to me with and swears that it was 100% safe with absolutely no mechanical issues. I have sent him all of Audi Brooklyn's estimates/invoices, as well as a wealth of information. It is his opinion that these issues had to happen in the 583 miles put on the car between his dealership and when it was brought in to Audi Brooklyn (NY). (approx. 500 of which were put on during my commute home with the car).

I have now opened a case with Audi of America and also with Penske Automotive Group (which is Audi Willoughby's parent company). I'll keep all of you posted, thanks again for all of your insite and help.

Scott
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Old 06-13-2014, 03:03 PM   #20
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Default Penske Automotive Group is the best in customer service

I used to work for Greg Penske in LA "customer satisfaction is #1 priority". I leased my Q7 from Penske group, if you make enough noise, I'm sure it will be handled.

Cheers and good luck,

Louis
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Old 06-13-2014, 03:03 PM
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