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Author Steering Wheel vibration at 75mph
corsaaa_16v
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Registered: 8th Feb 06
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   16th Jul 13 at 08:40   View User's Profile U2U Member Reply With Quote

I have just had some new wheels fitted to my TT and since, have noticed a vibration through the steering wheel at 75mph.

My immediate thought was that the balancing may be out so took them to Kwik Fit to have them balanced. The chap at Kwik Fit said that none of the wheels were balanced and that there was a very small buckle in the rear offside wheel. He said that all 4 wheels had balanced up fine so the vibration should stop.

The vibration has decreased slightly but is still noticeable at 75mph. The strange thing is, at 70mph its fine and if I go through 75mph and hit 80-85mph then the vibration stops

Any suggestions?
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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16th Jul 13 at 08:42   View Garage View User's Profile U2U Member Reply With Quote

Deffo still balancing, you aren't running any spacers are you
Steve
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16th Jul 13 at 08:43   View Garage View User's Profile U2U Member Reply With Quote

Ps I wouldn't trust kwik fit to balance on one foot
3CorsaMeal
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16th Jul 13 at 08:43   View User's Profile U2U Member Reply With Quote

Could it be warped discs Steve?
3CorsaMeal
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16th Jul 13 at 08:44   View User's Profile U2U Member Reply With Quote

I wouldn't trust them to balance a shatterproof ruler on a helix pencil
Ojc
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16th Jul 13 at 09:31   View User's Profile U2U Member Reply With Quote

Lots of cars get the wobble at 72-75mph it's strange
John
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16th Jul 13 at 09:34   View User's Profile U2U Member Reply With Quote

I've heard that it's a conspiracy to make most people shy away from doing over 70. Apart from the elite racing drivers among us, most people would just slow down a bit.
corsaaa_16v
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16th Jul 13 at 09:59   View User's Profile U2U Member Reply With Quote

It was fine on the wheels I had before at that speed so it must be the wheels

Would you recommend taking them to a specialist for the balancing then?

PS its a 2010 TT Quattro TFSI so shouldnt be wobbling at 80mph
Steve
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16th Jul 13 at 10:03   View Garage View User's Profile U2U Member Reply With Quote

I'd take them anywhere but kwik fit. Probably find no balancing weights on them at all
MatthewR
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16th Jul 13 at 10:03   View User's Profile U2U Member Reply With Quote

Buckle in the wheel???
Pretty sure thats the culprit
BenC1985
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16th Jul 13 at 10:06   View User's Profile U2U Member Reply With Quote

Are you running spiggot rings? Center bore of the wheel may be different to the hub.
corsaaa_16v
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16th Jul 13 at 10:40   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by MatthewR
Buckle in the wheel???
Pretty sure thats the culprit


They said it was only very minor and balanced up ok?
Steve
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16th Jul 13 at 10:41   View Garage View User's Profile U2U Member Reply With Quote

Are you running spigot rings? that's a pretty good shout
corsaaa_16v
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16th Jul 13 at 10:55   View User's Profile U2U Member Reply With Quote

Not entirely sure because the wheels were fitted by a friend, will double check though

The wheels are genuine Audi wheels, specifically for the TT so shouldnt require spigot rings?
Kyle T
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16th Jul 13 at 11:07   View Garage View User's Profile U2U Member Reply With Quote

It'll be the buckle. They did a mythbusters about driving with square wheels.

Obviously at slow speeds the ride quality with square wheels is terrible but at speed the wheel spins so fast that the ride smooths out a bit.

Same principle with a buckled wheel, if you spin it fast enough the buckled bit is less felt. I had the same on my car a few months ago... felt it at 70 and went away at 90ish.


Lotus Elise 111R

Impreza WRX STi
corsaaa_16v
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16th Jul 13 at 12:02   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Kyle T
It'll be the buckle. They did a mythbusters about driving with square wheels.

Obviously at slow speeds the ride quality with square wheels is terrible but at speed the wheel spins so fast that the ride smooths out a bit.

Same principle with a buckled wheel, if you spin it fast enough the buckled bit is less felt. I had the same on my car a few months ago... felt it at 70 and went away at 90ish.


That would make sense however I cant feel anything up to 70mph either?

So basically, the car feels fine between 0-70mph, vibrates between 75mph-80mph and is then fine 85mph plus

[Edited on 16-07-2013 by corsaaa_16v]
Edges 58
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16th Jul 13 at 12:10   View User's Profile U2U Member Reply With Quote

Ball joints, track rod ends, slightly flat spotted tyre, all possible but I would have said spigot rings if they weren't Audi genuine
Dave
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16th Jul 13 at 12:12   View User's Profile U2U Member Reply With Quote

Swap wheels front to back, if the vibration goes its one of those two wheels. Then put them back on the front one at a time to find which one.
Ian W
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16th Jul 13 at 12:18   View User's Profile U2U Member Reply With Quote

On mine it was my spacers being dirty and not sitting flush, cleaned them up and the wobble went away.

If your not running spacers then get it balanced somewhere that isn't Kwit Fit
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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16th Jul 13 at 12:27   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Dave
Swap wheels front to back, if the vibration goes its one of those two wheels. Then put them back on the front one at a time to find which one.



This tbh. Probably the 1st thing you should have done, or even Kwik Fit should have done it for you.
Kyle T
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16th Jul 13 at 12:39   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by corsaaa_16v
quote:
Originally posted by Kyle T
It'll be the buckle. They did a mythbusters about driving with square wheels.

Obviously at slow speeds the ride quality with square wheels is terrible but at speed the wheel spins so fast that the ride smooths out a bit.

Same principle with a buckled wheel, if you spin it fast enough the buckled bit is less felt. I had the same on my car a few months ago... felt it at 70 and went away at 90ish.


That would make sense however I cant feel anything up to 70mph either?

So basically, the car feels fine between 0-70mph, vibrates between 75mph-80mph and is then fine 85mph plus

[Edited on 16-07-2013 by corsaaa_16v]


Something to do with the tyre pressure absorbing the impacts up to a certain speed. I'm sure there's a science to it.

Without doubt swap your wheels around. My steering wheel vibration was violent, but when reversing the wheels I couldn't feel it in the slightest.


Lotus Elise 111R

Impreza WRX STi
corsaaa_16v
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16th Jul 13 at 16:26   View User's Profile U2U Member Reply With Quote

Swapped the wheels round so will see what its like on tonights drive home
gazza808
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16th Jul 13 at 16:33   View User's Profile U2U Member Reply With Quote

You get like a band of rpm where the object is out of balance, we get this when running spindles in at work, from 500rpm-9000rpm they are fine, but there's usually 250rpm window in the middle some where, and the vibration reading doubles/triples.

Checked your tyre pressures?
Tiger
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Registered: 12th Jun 01
Location: Nuneaton Drives:Audi A4 2.0TDi
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16th Jul 13 at 17:26   View User's Profile U2U Member Reply With Quote

I had wobble at 70 once when I had a tyre changed, a weight had come off the wheel. It was re balanced and was fine after that.
Chris F
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Registered: 26th Dec 05
Location: Newmarket Drives: Escort Van 1.8
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16th Jul 13 at 17:52   View Garage View User's Profile U2U Member Reply With Quote

70? Whats that?

I drive a van

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