Question about Audi S6

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2002 Audi S6 Avant with vibrations from 60mph upwards. All wheels, tyres and suspension checked. Is this propshaft bearing issue?

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  • michael109 May 12, 2009

    All wheels and tyres have been checked for balance. Suspension bushes and dampers are OK.

  • michael109 May 13, 2009

    Hi,  We have had the front UJs replaced but they needed it the rears seem to be fine (the boots aren't damaged) but they still might be worth a look. Is the transfer box what we call the differential or imbetween the gearbox and propshaft? I suspect there is a bearing half way along the propshaft, hidden of course! Appreciate your thoughts. 

  • michael109 May 13, 2009

    Hi , There is no noticeable wobble through the steering wheel, the car is tiptronic but I haven't felt anything through the selector.  Having said all this I took the car to another tyre centre today and they reckon that all four wheels are buckled!!  The previous tyre place just balanced them and didn't notice this.  I live in Northern Ireland where the roads are dreadful - why do we pay £400 annual road tax? My next step will be to replace wheels. If this doesn't do it I am back to square one.

  • michael109 May 13, 2009

    Many thanks. A set of 4 wheels at 18" 255 width for an Audi R8 are surprisingly only £300. Fingers crossed!

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Please may I ask do you get any indication of vibration from the steering or whilst holding gear shift at all or feel any vibration from brake pedals when depressed .

Posted on May 13, 2009

  • clive pearson
    clive pearson May 13, 2009

    I actually did suspect that the road wheels may be at fault as I have had a simillar problem on my Rover and it was down to incorrect tyre fitting .. I know what you mean , it seem we are paying to produce jobs for Pot hole fillers .. and they are not doing a very good job at that .. still could be worse we could all ride pushbikes lol ..sorry to hear about your buckled wheels hope It wont break the bank too much .......... Regards Vortash

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Is you are 100% sure the tires are ok then the problem may be related to the constant velocity joints on the drive axles. If the problem was a wheel bearing then u would hear allot of noise from the bearing. These joints are rebuild-able, here is a part number and price.

GKN Part # 4D0498099 {Front Outer CV Joint Kit} Price $196.95 each

2002 Audi S6 Avant with - d7c28fb.jpg

Posted on May 12, 2009

  • yadayada
    yadayada May 12, 2009

    u did not mention if the prop shaft/drive shafts Universal joints had been checked for excessive wear, also has the transfer case been looked at, all theses are a source of vibration,

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Hi, you will need to get your wheels aligned , they are probably slightly out of alignment.

Posted on May 12, 2009

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Some engines jump around badly if the engine idle speed is too low, especially after the mounts start to get old. try these two checks: 1) grab a solid piece of the motor and try to pull the motor around. If it moves easily, either mounts or vibration dampers are in bad shape.
2) Try pushing sideways on the prop. If it moves and then hits with thump of some sort, the cutlass bearing is probably worn out. If the engine is tight on its mounts and the cutlass bearing isn't sloppy, do a full engine / prop shaft alignment. It should a) ensure everything's in line and b) reveal loose bits (coupling bolts, for example). It's possible the transmission, particularly the output shaft bearings, is starting to go.

Thanks
Kevin

Posted on May 12, 2009

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Hi there,

This can be unbalanced wheel to cause a vibration from the rear!! have you checked the shockys? is it constant or does it depend on the speed?? And does it go away if you go fast enough???

Too bad that this great car has a persistent vibration above 60 mph. The dealers have attemtped (wtih varying degrees of sincerity) to fix it but have failed.

Let me know for further assistance.

Posted on May 12, 2009

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Why does it vibrate between 65 and 75 mph?


worn cv joints
bent drive shafts /out if balance drive shafts
faulty tires
warped disc rotors
wheel bearing failure or out of adjustment
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That is very likely a wheel bearing staring to go out to lunch.

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I have a Citroen xsara piccaso 1.6hdi and have a vibration on the n/s front any ideas


jack the front up and spin the wheel ,lay you pound to a penny the front tyre is deformed ,i blame the garage that checked the tracking and balancing for not checking the tyre first ,but as they only pay peanuts then no doubt it was only a semi skilled grease monkey you got to it for you ,change the wheels front for the rear and then it will be ok

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Around 30mph a vibration comes from the right rear of the car. whats the likelyness that its a wheel bearing?


most likely to be tyre/wheel damage (from kerbing etc), wheel balancing, wheel bearing or suspension bushes worn. pretty much in that order.

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When steer the car make a faint noise. Also steering is too loose, When make a turn steering does not come back to true straight I have to manually turn it to straight. When going on curbs with a little...


take it in to an accredited suspension shop for a front end check
the "not self centering"statement indicates negative castor and that is a wheel alignment p-roblem
the suspension check will cover any damage from pot holes to worn struts and failing suspension arm bushes

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Vibration in front wheel and sound like bearing problem


depend on when the car do that . a bad bearing make scraching noise but dont shake vibration is couse for bad shok or bad tire

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Have a 2002 chev malibu v6 front wheel drive, have a howling noise and a vibration when approaching speeds of 100 kph (60 mph), I have replaced both front bearings, rebalanced tires, rotated as well, still...


If it is a tire related howl you are getting as well as the vibration through the steering wheel once you hit about 60 mph there is a number of things you need to do.

1. If you have not had a wheel alignment carried out on the vehicle in the last 6 months then have it done at a reputable suspension specialist (not a tyre dealer). Check your front tires for wear pattern in any event as uneven wear on the tyre is a sure sign of poor alignment. Bad alignment can also contribute to vibration problems. I will guarantee you that when you get the alignment checked it will be out. I am not sure if the rear alignment is adjustable on your model but if it is you will in fact need a 4 wheel alignment. (REFER point 7 also)

2. When the alignment and other necessary front end work is done check to see if the problems persists..

3. I assume your vehicle has the steel rims fitted with the plastic wheel cover. Remove the covers on the front wheels and check for the vibration. If it disappears then the out of balance condition is caused by the covers. (This would not explain the tyre howl though).

4. Remove both front wheels (clean them) and check for damage to the rims on both sides including outside scuffing. (Check tyres also.)
If the steel rim is bent or warped it will not run true and you will get vibration and the tyres will tend to be noisy on the road. It is not always easy to identify a warped steel rim from a visual check. Spinning the wheel on a wheel balance machine should normally show this up though.
If you have alloy wheels fitted these tend to crack and break rather than bend or warp.

5. Out of balance wheels.

It is possible for a wheel to be so badly manufactured that no amount of balancing on a tyre balance machine will fix it. This is a particular problem with cheap alloy wheels but even good quality wheel manufacturers will occasionally let a bad alloy wheel slip past their quality control .

6. Tyres.
If you buy budget tyres you are generally buying poor performance and potentially poorly constructed tyres. Tyres can be produced with inbuilt heavy spots that will make them impossible to properly balance. You will forever have a balance problem (and hence vibration) with such tyres. A good manufacturer will not allow such tyres to slip through quality control. Others are much less fussy. It is always a bad decision to purchase tyres in the lower price ranges.
In your case it is quite possible that if your wheels are ok the tyres are badly constructed and it is not possible to balance them properly. (This would not explain the tyre howl though).

7. Given the age of your vehicle you should have the front suspension and steering components inspected. It is possible that wear in critical components could be the source of the problem. When you take the car to the suspension specialist for the wheel alignment you need to have the front end fully checked over first and any problem areas attended to.

Without test driving and pysically inspecting the vehicle it is not possible to identify the source or sources of the problems. My best estimate is that there are significant wear problems in front end components and that your front end aligment is also out.
However , I hope this helps.

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